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Khalil, Hanan, Aseel Aburub, Saddam F. Kanaan, Alham AlSharman, Shada Khazaaleh, Majdi Al Qawasmeh, and Khalid El-Salem. "Convergent and criterion-related validity of the short form of the International Physical Activity and the Incidental and Planned Physical Activity Questionnaires in people with multiple sclerosis." NeuroRehabilitation 49, no. 4 (December 24, 2021): 597–606. http://dx.doi.org/10.3233/nre-210188.
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BACKGROUND: Assessing physical activity (PA) in people with multiple sclerosis (PwMS) is essential to follow-up the recommended PA level. The International Physical Activity Questionnaire (IPAQ) and the Incidental and Planned Exercise Questionnaire (IPEQ) have been widely used, but their validity has not been investigated previously in PwMS. OBJECTIVE: This study aimed to assess the convergent and criterion validity of the IPAQ and the IPEQ in PwMS. METHODS: 50 PwMS were asked to wear an Actigraph for seven days and to fill the IPAQ and IPEQ. Sedentary, moderate (MPA), vigorous (VPA) and moderate to vigorous PA (MVPA) levels were recorded. RESULTS: Significant correlations were found between sitting time as reported by IPAQ and sedentary time as recorded by Actigraph (r = 0.41, p = 0.003), VPA by IPAQ and VPA as recorded by Actigraph (r = 0.46, p = 0.001), and MVPA by IPAQ and MVPA by Actigraph (r = 0.36, p = 0.011). IPEQ showed poor both criterion and convergent validity when compared to the Actigraph. Both IPAQ and IPEQ overestimate the intensities of PA for all the derived parameters. CONCLUSIONS: Findings of this study are important as they suggest that IPAQ in particular had convergent validity when compared to Actigraph data, but still had the problem of overestimating PA levels.
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Cerin, Ester, Anthony Barnett, Man-chin Cheung, Cindy H. P. Sit, Duncan J. Macfarlane, and Wai-man Chan. "Reliability and Validity of the IPAQ-L in a Sample of Hong Kong Urban Older Adults: Does Neighborhood of Residence Matter?" Journal of Aging and Physical Activity 20, no. 4 (October 2012): 402–20. http://dx.doi.org/10.1123/japa.20.4.402.
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This study examined reliability and validity of the Chinese version of the International Physical Activity Questionnaire–Long Form (IPAQ-LC) in Chinese seniors, including moderating effects of neighborhood walkability and socioeconomic status (SES) on reliability and validity. The IPAQ-LC was interviewer-administered (n = 96), accelerometer and 7-day walk-diary data were collected (n = 94), and the IPAC-LC was readministered (N = 92). Acceptable reliability was found for all measures of physical activity (PA) overall and across different types of neighborhood. Participants from highly walkable neighborhoods were more reliable at estimating walking for transport. Participants from low-SES areas were less reliable at estimating leisure-time PA and sitting but more reliable at estimating transport-related walking. IPAQ-LC walking was significantly related to light- but not moderate-intensity accelerometry-based PA. It was moderately to strongly related to a 7-day diary of walking. The data imply slow-paced walking, probably due to age, climate, and terrain. The findings suggest that the IPAQ-LC’s reliability and validity are acceptable in Chinese seniors.
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Gilang Fachri Maulana and Novita Intan Arovah. "Does GPAQ exhibit a higher correlation with the maximum oxygen capacity than IPAQ among young adults?" Journal Sport Area 6, no. 3 (December 15, 2021): 411–20. http://dx.doi.org/10.25299/sportarea.2021.vol6(3).7589.
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International Physical Activity Questionnaire (IPAQ) and the Global Physical Activity Questionnaire (GPAQ) are the two most widely used to measure physical activity (PA). Yet, their convergent validation with the maximum oxygen capacity (VO2Max) among Indonesian young adults is unknown. This study compared physical activity (PA) assessments using IPAQ and GPAQ and their correlations with the maximal oxygen capacity (VO2Max) in the young adult population. This study was a cross-sectional descriptive study on 63 Sports Science students (84.13% Male age ranged 18-22 years). PA was measured using both the GPAQ and IPAQ to calculate the total PA and PA in each domain (i.e. work-related, transport-related, and leisure). One additional domain which was household-related was assessed exclusively for the IPAQ based on the scoring guideline. The VO2Max was measured using a standard equation based on participants’ performance on a 1-mile run. Paired sample t-test was conducted to compare total PA based on GPAQ and IPAQ while the Wilcoxon sign rank test was conducted to compare GPAQ and IPAQ domains. Pearson or Spearman correlation test assessed the correlations among the VO2Max, total PA, and PA on each GPAQ’s and IPAQ domain. No significant difference in the total PA per week between IPAQ and GPAQ was found. Significant differences, however, were found in work and transport domains, but not in the leisure domains. A moderate correlation among GPAQ and IPAQ (r=0.56, p=0.01), a moderate correlation between GPAQ and VO2Max (r=0.41, p= 0.01) but a weak correlation between IPAQ dan VO2Max (r=0.25, p<0.05) were demonstrated. While, this study has indicated convergent validity of both GPAQ and IPAQ, GPAQ has a higher correlation with VO2Max compared to the IPAQ. Therefore, GPAQ is more recommended to be used to measure PA levels among Indonesian young adults compared to IPAQ.
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Picking, Wendy L., Hiroaki Nishioka, Patricia D. Hearn, M. Aaron Baxter, Amanda T. Harrington, Ariel Blocker, and William D. Picking. "IpaD of Shigella flexneri Is Independently Required for Regulation of Ipa Protein Secretion and Efficient Insertion of IpaB and IpaC into Host Membranes." Infection and Immunity 73, no. 3 (March 2005): 1432–40. http://dx.doi.org/10.1128/iai.73.3.1432-1440.2005.
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ABSTRACT Shigella flexneri causes human dysentery after invading the cells of the colonic epithelium. The best-studied effectors of Shigella entry into colonocytes are the invasion plasmid antigens IpaC and IpaB. These proteins are exported via a type III secretion system (TTSS) to form a pore in the host membrane that may allow the translocation of other effectors into the host cytoplasm. TTSS-mediated secretion of IpaD is also required for translocation pore formation, bacterial invasion, and virulence, but the mechanistic role of this protein is unclear. IpaD is also known to be involved in controlling Ipa protein secretion, but here it is shown that this activity can be separated from its requirement for cellular invasion. Amino acids 40 to 120 of IpaD are not essential for IpaD-dependent invasion; however, deletions in this region still lead to constitutive IpaB/IpaC secretion. Meanwhile, a central deletion causes only a partial loss of control of Ipa secretion but completely eliminates IpaD's invasion function, indicating that IpaD's role in invasion is not a direct outcome of its ability to control Ipa secretion. As shigellae expressing ipaD N-terminal deletion mutations have reduced contact-mediated hemolysis activity and are less efficient at introducing IpaB and IpaC into erythrocyte membranes, it is possible that IpaD is responsible for insertion of IpaB/IpaC pores into target cell membranes. While efficient insertion of IpaB/IpaC pores is needed for optimal invasion efficiency, it may be especially important for Ipa-dependent membrane disruption and thus for efficient vacuolar escape and intercellular spread.
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Hansen, Andreas Wolff, Inger Dahl-Petersen, Jørn Wulff Helge, Søren Brage, Morten Grønbæk, and Trine Flensborg-Madsen. "Validation of an Internet-Based Long Version of the International Physical Activity Questionnaire in Danish Adults Using Combined Accelerometry and Heart Rate Monitoring." Journal of Physical Activity and Health 11, no. 3 (March 2014): 654–64. http://dx.doi.org/10.1123/jpah.2012-0040a.
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Background:The International Physical Activity Questionnaire (IPAQ) is commonly used in surveys, but reliability and validity has not been established in the Danish population.Methods:Among participants in the Danish Health Examination survey 2007–2008, 142 healthy participants (45% men) wore a unit that combined accelerometry and heart rate monitoring (Acc+HR) for 7 consecutive days and then completed the IPAQ. Background data were obtained from the survey. Physical activity energy expenditure (PAEE) and time in moderate, vigorous, and sedentary intensity levels were derived from the IPAQ and compared with estimates from Acc+HR using Spearman’s correlation coefficients and Bland-Altman plots. Repeatability of the IPAQ was also assessed.Results:PAEE from the 2 methods was significantly positively correlated (0.29 and 0.49; P = 0.02 and P < 0.001; for women and men, respectively). Men significantly overestimated PAEE by IPAQ (56.2 vs 45.3 kJ/kg/day, IPAQ: Acc+HR, P < .01), while the difference was nonsignificant for women (40.8 vs 44.4 kJ/kg/day). Bland-Altman plots showed that the IPAQ overestimated PAEE, moderate, and vigorous activity without systematic error. Reliability of the IPAQ was moderate to high for all domains and intensities (total PAEE intraclass correlation coefficient = 0.58).Conclusions:This Danish Internet-based version of the long IPAQ had modest validity and reliability when assessing PAEE at population level.
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Gauthier, Alain P., Michel Lariviere, and Nancy Young. "Psychometric Properties of the IPAQ: A Validation Study in a Sample of Northern Franco-Ontarians." Journal of Physical Activity and Health 6, s1 (January 2009): S54—S60. http://dx.doi.org/10.1123/jpah.6.s1.s54.
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Background:The International Physical Activity Questionnaire (IPAQ) has received significant attention since the late 1990s. As it currently stands, its long version has been translated in English, German, Icelandic, Korean, Polish, Spanish, Turkish, and Vietnamese. However no data originating from the self-administered long version (last 7 days) of the IPAQ (IPAQ-SALV) is available for French Canadians. This study developed a self-administered long version (last 7 days) of the IPAQ in Canadian French (IPAQ-SALVCF) and assessed its psychometric properties.Methods:The original IPAQ-SALV was linguistically translated, back-translated, and then reviewed in a focus group to ensure its meaning had been retained. Data were collected on a sample of 34 Francophones from Northern Ontario, and the results compared with step counts assessed by 7-day pedometer recording. Test-retest reliability was examined with a 24-hour delay between questionnaire completion on day 8 and day 9 of the protocol. Convergent validity was assessed by comparing IPAQ-SALVCF (last 7 days) results to average step counts over a 7-day period.Results:Intra-class correlation coefficients (ICC) revealed that the IPAQ-SALVCF results were stable between days. The ICC for total activity scores was highest at 0.93 (CI: 0.86 to 0.97). Total activity scores were also significantly related to pedometer step counts (Pearson r = .66 P < .01). These results confirm those obtained in prior researchConclusion:The IPAQ-SALVCF is a reliable and valid measure of physical activity for French Canadians.
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Thuy, Au Bich, Leigh Blizzard, Michael Schmidt, Pham Hung Luc, Costan Magnussen, and Terence Dwyer. "Reliability and Validity of the Global Physical Activity Questionnaire in Vietnam." Journal of Physical Activity and Health 7, no. 3 (May 2010): 410–18. http://dx.doi.org/10.1123/jpah.7.3.410.
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Background:The Global Physical Activity Questionnaire (GPAQ) was developed as an improvement of the International Physical Activity Questionnaire (IPAQ) for use in cross-cultural settings. This study compared the reliability and validity of GPAQ and IPAQ in Vietnam.Methods:251 adults were randomly selected from a population-based survey (n = 1978) of noncommunicable disease risk factors. GPAQ and IPAQ were administered on 2 occasions. Participants wore pedometers and logged their physical activity (PA) for 7 consecutive days.Results:Test-retest correlations of GPAQ measurements differed for participants (n = 153) with stable work patterns (work PA r = .43, total PA r = .39) and those (n = 98) with unstable work patterns (work PA r = −0.02, total PA r = −0.05). IPAQ measurements did not differ in this way. GPAQ reliability was poorer for transport (GPAQ r = .25, IPAQ r = .60) and for leisure (GPAQ r = .21, IPAQ r = .45) PA. GPAQ estimates of total PA for participants with stable work patterns were moderately correlated with IPAQ total PA (r = .32), steps per day (r = .39), and PA log (r = .31).Conclusions:The modifications made when designing GPAQ improved its reliability for persons with stable work patterns, but at the expense of poorer reliability for persons with more variable PA. GPAQ did not have superior validity to IPAQ.
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Epler, Chelsea R., Nicholas E. Dickenson, Andrew J. Olive, Wendy L. Picking, and William D. Picking. "Liposomes Recruit IpaC to the Shigella flexneri Type III Secretion Apparatus Needle as a Final Step in Secretion Induction." Infection and Immunity 77, no. 7 (May 11, 2009): 2754–61. http://dx.doi.org/10.1128/iai.00190-09.
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ABSTRACT Shigella flexneri contact with enterocytes induces a burst of protein secretion via its type III secretion apparatus (TTSA) as an initial step in cellular invasion. We have previously reported that IpaD is positioned at the TTSA needle tip (M. Espina et al., Infect. Immuno. 74:4391-4400, 2006). From this position, IpaD senses small molecules in the environment to control the presentation of IpaB to the needle tip. This step occurs without type III secretion induction or IpaC recruitment to the S. flexneri surface. IpaC is then transported to the S. flexneri surface when target cell lipids are added, and this event presumably mimics host cell contact. Unlike IpaB mobilization, IpaC surface presentation is closely linked to secretion induction. This study demonstrates that sphingomyelin and cholesterol are key players in type III secretion induction and that they appear to interact with IpaB to elicit IpaC presentation at the TTSA needle tip. Furthermore, IpaB localization at the needle tip prior to membrane contact provides the optimal set of conditions for host cell invasion. Thus, the S. flexneri type III secretion system can be induced in a stepwise manner, with the first step being the stable association of IpaD with the needle tip, the second step being the sensing of small molecules by IpaD to mobilize IpaB to the tip, and the third step being the interaction of lipids with IpaB to induce IpaC localization at the needle tip concomitant with translocon insertion into the host membrane and type III secretion induction.
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Kwak, Lydia, Maria Hagströmer, and Michael Sjostrom. "Can the IPAQ-Long be Used to Assess Occupational Physical Activity?" Journal of Physical Activity and Health 9, no. 8 (November 2012): 1130–37. http://dx.doi.org/10.1123/jpah.9.8.1130.
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Background:To be able to draw any conclusions regarding the health effects of occupational physical activity (OPA), more information is needed regarding valid measures to assess OPA. Aims were to compare OPA as assessed with the International Physical Activity Questionnaire long version (IPAQ-L) with OPA assessed with an accelerometer and to assess the contribution of OPA to total PA.Methods:Working adults (n = 441; mean age = 49.4 yrs; 44% males) wore an accelerometer for 7 days in free-living situations and completed the IPAQ-L. Comparisons were made between IPAQ-L-work and accelerometer data limited to working time (Moderate and Vigorous PA (accelerometer-MVPA-work) and average intensity). Subgroup analyses were performed.Results:Spearman correlation was r = .46 (P < .01) between IPAQ-L-work and accelerometer-MVPA-work. Correlations ranged from r = .27 to r = .55 in respectively obese and overweight subjects. The contribution of IPAQ-L-work to IPAQ-total was 24.7%.Conclusions:The IPAQ-L work domain is a moderately good measure of time spent on MVPA at work and can be used to assess the contribution of OPA to total PA. This study provides valuable information regarding the use of the IPAQ-L in assessing work domain specific PA, and underscores the importance of assessing OPA, as it can contribute for a substantial part to total PA.
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Hagstromer, Maria, Barbara E. Ainsworth, Pekka Oja, and Michael Sjostrom. "Comparison of a Subjective and an Objective Measure of Physical Activity in a Population Sample." Journal of Physical Activity and Health 7, no. 4 (July 2010): 541–50. http://dx.doi.org/10.1123/jpah.7.4.541.
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Background:The aim of this study was to compare physical activity components in the long, self-administrated version of IPAQ with an accelerometer in a population sample.Methods:In total 980 subjects (18-65 years) wore an accelerometer (Actigraph) for 7 consecutive days and thereafter filled in the IPAQ. Measures of total physical activity, time spent in moderate and in vigorous activity as well as time spent sitting as assessed by the IPAQ and the Actigraph were compared.Results:The results showed significant low to moderate correlations (Rs = 0.07−0.36) between the 2 instruments and significantly (P < .001) higher values for sitting and vigorous intensity physical activity from the IPAQ compared with the Actigraph. The higher the values reported by the IPAQ the bigger differences were seen between the instruments. Comparison between the tertiles of total physical activity by the 2 instruments showed significant overall association with consistent agreement in the low and the high tertiles.Conclusion:The long form of IPAQ is a valid measure of physical activity in population research. However, the IPAQ likely overestimates actual physical activity as shown by its limited ability to classify adults into low and high categories of physical activity based on accelerometer data.
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Hallal, Pedro C., Luis Fernando Gomez, Diana C. Parra, Felipe Lobelo, Janeth Mosquera, Alex A. Florindo, Rodrigo S. Reis, Michael Pratt, and Olga L. Sarmiento. "Lessons Learned After 10 Years of IPAQ Use in Brazil and Colombia." Journal of Physical Activity and Health 7, s2 (January 2010): S259—S264. http://dx.doi.org/10.1123/jpah.7.s2.s259.
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Background:To describe the lessons learned after 10 years of use of the International Physical Activity Questionnaire (IPAQ) in Brazil and Colombia, with special emphasis on recommendations for future research in Latin America using this instrument.Methods:We present an analytical commentary, based on data from a review of the Latin American literature, as well as expert consultation and the authors' experience in administering IPAQ to over 43,000 individuals in Brazil and Colombia between 1998 and 2008.Results:Validation studies in Latin America suggest that the IPAQ has high reliability and moderate criteria validity in comparison with accelerometers. Cognitive interviews suggested that the occupational and housework sections of the long IPAQ lead to confusion among respondents, and there is evidence that these sections generate overestimated scores of physical activity. Because the short IPAQ considers the 4 physical activity domains altogether, people tend to provide inaccurate answers to it as well.Conclusions:Use of the leisure-time and transport sections of the long IPAQ is recommended for surveillance and studies aimed at documenting physical activity levels in Latin America. Use of the short IPAQ should be avoided, except for maintaining consistency in surveillance when it has already been used at baseline.
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Grimm, Elizabeth K., Ann M. Swartz, Teresa Hart, Nora E. Miller, and Scott J. Strath. "Comparison of the IPAQ-Short Form and Accelerometry Predictions of Physical Activity in Older Adults." Journal of Aging and Physical Activity 20, no. 1 (January 2012): 64–79. http://dx.doi.org/10.1123/japa.20.1.64.
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Older adult physical activity (PA) levels obtained from the International Physical Activity Questionnaire–Short Form (IPAQ) and accelerometry (ACC) were compared. Mean difference scores between accumulated or bout ACC PA and the IPAQ were computed. Spearman rank-order correlations were used to assess relations between time spent in PA measured from ACC and self-reported form of the IPAQ, and percentage agreement across measures was used to classify meeting or not meeting PA recommendations. The IPAQ significantly underestimated sitting and overestimated time spent in almost all PA intensities. Group associations across measures revealed significant relations in walking, total PA, and sitting for the whole group (r = .29–.36, p < .05). Significant relationships between bout ACC and IPAQ walking (r = .28–.39, p < .05) were found. There was 40–46% agreement between measures for meeting PA recommendations. The IPAQ appears not to be a good indicator of individual older adult PA behavior but is better suited for larger population-based samples.
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Rzewnicki, Randy, Yves Vanden Auweele, and Ilse De Bourdeaudhuij. "Addressing overreporting on the International Physical Activity Questionnaire (IPAQ) telephone survey with a population sample." Public Health Nutrition 6, no. 3 (June 2003): 299–305. http://dx.doi.org/10.1079/phn2002427.
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AbstractObjective:To examine a possible problem of overreporting and to describe the degree of error with the International Physical Activity Questionnaire (IPAQ) short telephone protocol.Design:Cross-sectional study, using two different physical activity (PA) self-report protocols.Setting:Telephone interviews about PA in Belgium.Subjects:Fifty adults who had previously been interviewed with IPAQ in a national survey.Results:Seventy-five per cent reported less PA with the modified procedure than with the IPAQ. Twenty-three of the 50 individuals were found to have reported some amounts of PA with the IPAQ (either walking, or vigorous or moderate PA) when they should have reported none. In total, based on their revised reports of PA, 50% fewer persons met PA recommendations than was the case with IPAQ. The overreporting could not be related to types of error-prone individuals.Conclusions:Overreporting of PA in population samples is a serious problem that could be reduced by implementing procedure changes without changing the IPAQ items themselves.
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Hurtig-Wennlöf, Anita, Maria Hagströmer, and Lovisa A. Olsson. "The International Physical Activity Questionnaire modified for the elderly: aspects of validity and feasibility." Public Health Nutrition 13, no. 11 (March 3, 2010): 1847–54. http://dx.doi.org/10.1017/s1368980010000157.
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AbstractObjectiveTo modify the self-administered, short version of the International Physical Activity Questionnaire (IPAQ) for adults to be used in the elderly (aged 65 years and above), and to validate this modified IPAQ for the elderly (IPAQ-E).DesignA direct validity study using accelerometer-measured physical activity (PA) as the criterion measure, and an indirect criterion validity study using high-sensitivity C-reactive protein (hs-CRP) as a biological marker of activity.SettingOrganisations for retired persons in Sweden.SubjectsThe direct validity study consisted of fifty-four participants and the indirect criterion validity study consisted of 359 participants. All participants were retired persons (66–91 years) living independently.ResultsAll self-reported activity domains (sitting, walking, moderate and vigorous) were positively correlated with the corresponding variable objectively assessed by an accelerometer (ρ= 0·277–0·471), but a systematic error was observed. The specificity of IPAQ-E to identify low-active participants was 85 %, and the sensitivity to identify the more active participants was 81 %. A main effect of IPAQ-E category (Low, Moderate or High) was observed for hs-CRP (P= 0·041).ConclusionsWe found this modified version of IPAQ, the IPAQ-E, to be well accepted by our sample of socially active elderly. It provided acceptable estimates of PA, well in line with other questionnaires, even though it had a systematic error. The IPAQ-E was able to identify an expected response of a biomarker (hs-CRP) to PA. We recommend the use of the IPAQ-E to classify participants aged 65 years and above into PA categories, to rank individuals or to identify individuals meeting certain PA criteria.
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WEISSBLUETH, EYAL. "Short Hebrew International Physical Activity Questionnaire: Reliability and Validity." Baltic Journal of Health and Physical Activity 7, no. 1 (March 31, 2015): 7–13. http://dx.doi.org/10.29359/bjhpa.07.1.01.
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Background: The International Physical Activity Questionnaire (IPAQ) aims to measure physical activity consistency throughout the world. It has been translated into many languages and its validity has been examined worldwide. However, the IPAQ has not been translated into Hebrew and the psychometric properties of the Hebrew version have yet to be evaluated. Material/Methods: The current study assessed the test-retest reliability of the short IPAQ in Hebrew (IPAQ-S-H) and its validity among college students. Intra-class correlation coefficients were computed to assess reliability, and survey responses were compared to VO2max to determine concurrent validity. Results: The IPAQ-S-H’s test-retest reliability was primarily high, particularly for total physical activity (ICC = 0.90; 95%CI = 0.87-0.93). While agreement for the physical activity components of the survey was higher (ICCs: 0.58-0.79), agreement for sitting time was lower (ICC = 0.39; 95% =0.25-0.52). When comparing the survey scores to VO2max, total physical activity and vigorous intensity activity were significantly correlated with maximal oxygen uptake (Pearson’s r = 0.43 and 0.40, respectively), but not with other survey components. Conclusions: The IPAQ-S-H primarily exhibits moderate reliability and validity, which are comparable psychometric properties to other IPAQ validation studies. Further validation is warranted among more representative samples utilizing objective monitoring to determine criterion validity.
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Rosa, Clara Suemi da Costa, Luis Gracia-Marco, Alan R. Barker, Ismael Forte Freitas Jr., and Henrique Luiz Monteiro. "Assessment of Physical Activity by Accelerometer and IPAQ-Short Version in Patients with Chronic Kidney Disease Undergoing Hemodialysis." Blood Purification 40, no. 3 (2015): 250–55. http://dx.doi.org/10.1159/000437040.
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Aim: To compare the short version of International Physical Activity Questionnaire (IPAQ) and the accelerometer measurement of physical activity (PA) in patients undergoing hemodialysis. Methods: Sample consisted of 40 patients (19 men) aged 45 ± 16 years. Patients reported their PA using the IPAQ during a face-to-face interview, and wore an Actigraph GT3-X accelerometer for 1 week to obtain minutes per day of light PA, moderate-to-vigorous PA (MVPA) and total PA as well as raw counts per day (vector magnitude). Results: All PA-related variables were significantly correlated among instruments (r = 0.34-0.47) when analyzed as a group. However, when analyzed separately by gender, the relationships were present for women only (r = 0.46-0.62). IPAQ significantly underestimated light PA (IPAQ vs. accelerometer: 180.0 vs. 251.1 min/day, p = 0.019), but no differences were found between methods for MVPA and total PA. Conclusion: Modest correlations were found between self-reported PA time by IPAQ (short version) and accelerometer, but only in women. However, the IPAQ may underestimate light PA, which is the main form of PA in this population.
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Hagströmer, Maria, Pekka Oja, and Michael Sjöström. "The International Physical Activity Questionnaire (IPAQ): a study of concurrent and construct validity." Public Health Nutrition 9, no. 6 (September 2006): 755–62. http://dx.doi.org/10.1079/phn2005898.
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AbstractIntroductionThe International Physical Activity Questionnaire (IPAQ) was developed to measure health-related physical activity (PA) in populations. The short version of the IPAQ has been tested extensively and is now used in many international studies. The present study aimed to explore the validity characteristics of the long-version IPAQ.Subjects and methodsForty-six voluntary healthy male and female subjects (age, mean±standard deviation: 40.7±10.3 years) participated in the study. PA indicators derived from the long, self-administered IPAQ were compared with data from an activity monitor and a PA log book for concurrent validity, and with aerobic fitness, body mass index (BMI) and percentage body fat for construct validity.ResultsStrong positive relationships were observed between the activity monitor data and the IPAQ data for total PA (ρ = 0.55, P < 0.001) and vigorous PA (ρ = 0.71, P < 0.001), but a weaker relationship for moderate PA (ρ = 0.21, P = 0.051). Calculated MET-h day−1 from the PA log book was significantly correlated with MET-h day−1 from the IPAQ (ρ = 0.67, P < 0.001). A weak correlation was observed between IPAQ data for total PA and both aerobic fitness (ρ = 0.21, P = 0.051) and BMI (ρ = 0.25, P = 0.009). No significant correlation was observed between percentage body fat and IPAQ variables. Bland–Altman analysis suggested that the inability of activity monitors to detect certain types of activities might introduce a source of error in criterion validation studies.ConclusionsThe long, self-administered IPAQ questionnaire has acceptable validity when assessing levels and patterns of PA in healthy adults.
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Salanave, Benoit, Michel Vernay, Emmanuelle Szego, Aurélie Malon, Valérie Deschamps, Serge Hercberg, and Katia Castetbon. "Physical activity patterns in the French 18–74-year-old population: French Nutrition and Health Survey (Etude Nationale Nutrition Santé, ENNS) 2006–2007." Public Health Nutrition 15, no. 11 (July 5, 2012): 2054–59. http://dx.doi.org/10.1017/s1368980012003278.
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AbstractObjectiveTo describe detailed physical activity and sedentary behaviour in French adults across physical activity categories.DesignThe French Nutrition and Health Survey (Etude Nationale Nutrition Santé, ENNS), conducted in 2006–2007, was a national cross-sectional survey based on three-stage random sampling. The International Physical Activity Questionnaire (IPAQ) was used to classify participants into three physical activity categories. Time spent in a sitting position and time spent in front of a screen were used as markers of sedentary behaviour.SettingFrance.SubjectsAdults (n2971) aged 18 to 74 years were included.ResultsOverall, 29·5 % of men and 23·6 % of women were classified into the high-IPAQ category, while 36·1 % of men and 37·5 % of women were in the low-IPAQ category. For each intensity level of physical activity (vigorous intensity, moderate intensity or walking), the number of active days per week decreased from the high- to the low-IPAQ category and daily duration of physical activity was longer in the high-IPAQ category than in the other two categories; 6 % of adults declared neither vigorous nor moderate nor walking activities.ConclusionsFor most adults in the low-IPAQ category, an increasing number of active days per week would be sufficient to attain the moderate-IPAQ category. This should be taken into account in public health initiatives aimed at promoting physical activity.
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Lewis, Liane S., James Hernon, Allan Clark, and John M. Saxton. "Validation of the IPAQ Against Different Accelerometer Cut-Points in Older Cancer Survivors and Adults at Risk of Cancer." Journal of Aging and Physical Activity 26, no. 1 (January 1, 2018): 34–40. http://dx.doi.org/10.1123/japa.2016-0207.
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The present study investigated the convergent validity of an interview-administered IPAQ long version (IPAQ-L) in an older population by comparison with objective accelerometry movement data. Data from 52 participants (mean age 67.9 years, 62% male) were included in the analysis. Treadmill derived (TM-ACC: 1,952–5,724 cpm) and free-living physical activity (PA) derived (FL-ACC: 760–5,724 cpm) accelerometer cut-points were used as criterion. IPAQ-L measures (total PA, leisure-time, walking-time, sedentary time) were significantly correlated with accelerometry (P ≤ .05). Differences in sex were observed. Bland-Altman Limits of Agreement analysis showed that the IPAQ-L overestimated PA in relation to accelerometry. Our results show that an interview-administered IPAQ-L shows low to moderate convergent validity with objective PA measures in this population but there may be differences between males and females which should be further investigated.
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Vandelanotte, Corneel, Ilse De Bourdeaudhuij, Renaat Philippaerts, Michael Sjöström, and James Sallis. "Reliability and Validity of a Computerized and Dutch Version of the International Physical Activity Questionnaire (IPAQ)." Journal of Physical Activity and Health 2, no. 1 (January 2005): 63–75. http://dx.doi.org/10.1123/jpah.2.1.63.
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Background:The purpose of this study was to examine the reliability and validity of a newly developed computerized Dutch version of the International Physical Activity Questionnaire (IPAQ).Methods:Subjects (N = 53) completed the computerized IPAQ at three specified times. Subjects wore a CSA activity monitor during seven full days and simultaneously completed a 7-d physical activity diary. Finally, respondents filled out a paper and pencil IPAQ.Results:Intraclass correlation coefficient ranged from 0.60 to 0.83. Correlations for “total physical activity” between the computerized IPAQ and the CSA activity counts were moderate (min: r = 0.38; kcal: r = 0.43). Correlations with the physical activity diary were also moderate (min: r = 0.39; kcal: r = 0.46). Correlations between the computerized and the paper and pencil IPAQ were high (min: r = 0.80; kcal: r = 0.84).Conclusions:The computerized Dutch IPAQ is a reliable and reasonably valid physical activity measurement tool for the general adult population.
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Elim, Yuan Valentino, Suci Istiqlaal, and Aprianus Ronny Paskal Modena. "Perumusan indeks penilaian 5A (attraction, accessibilites, amenities, accomodation dan awareness) untuk obyek wisata pantai Lasiana Kupang Provinsi NTT." FLOBAMORA 2, no. 2 (January 14, 2020): 20–38. http://dx.doi.org/10.46888/flobamora.v2i2.24.
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Penelitian ini bertujuan untuk menemukan indikator yang berpengaruh terhadap variable 5A (Atraction, Accessibility, Amenitas, Acommodations dan Awareness) pada obyek wisata Pantai Lasiana Kupang dan menentukan indeks dari masing-masing variabel 5A (Atraction, Accessibility, Amenitas, Acommodations dan Awareness) pada obyek wisata Pantai Lasiana Kupang. Metode penelitian ini adalah mixed method dan dianalisis menggunakan regresi berganda dengan variable meliputi Attractions, Accessibilities, Amenities, Acomodation dan Awareness. Hasil penelitian menunjukkan bahwa nilai indeks wisata alam (IPWA) diperoleh skor sebesar 67, 4160, indeks wisata budaya (IPWB), sebesar - 4,3459, indeks wisata buatan (IPWBU) sebesar -0.58878, indeks Aksesibilitas (IPAc) sebesar 3,8016, indeks Amenities (IPAm) sebesar- 381.157, indeks akomodasi (IPAk) sebesar2,79468, dan indeks awareness (IPAw) sebesar - 18,4035.
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Torquato, Edna, Aline Gerage, Simone Meurer, Rossana Borges, Mônica Silva, and Tânia Benedetti. "Comparação do nível de atividade física medido por acelerômetro e questionário IPAQ em idosos." Revista Brasileira de Atividade Física & Saúde 21, no. 2 (March 1, 2016): 144. http://dx.doi.org/10.12820/rbafs.v.21n2p144-153.
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O objetivo deste estudo foi comparar o nível de atividade física (AF) medido por acelerômetro e questionário IPAQ em idosos. A amostra foi composta por 103 idosos (acima de 60 anos), de ambos os sexos, cadastrados em Centros de Saúde da regional Norte e Leste de Florianópolis – SC, Brasil. O IPAQ (domínio lazer, versão longa) foi respondido com base em uma semana habitual. O acelerômetro (Actigraph, modelo GT3X e GT3X+) deveria ser usado durante sete dias consecutivos, sendo considerados como dados válidos, no mínimo, 10 horas de uso em, pelo menos, quatro dias (um de final de semana). Comparando a AF mensurada pelo IPAQ e pelo acelerômetro, não houve diferença estatisticamente significante na amostra geral, independente do sexo. Quanto à classificação geral em ativos e inativos, observou-se diferença estatisticamente significante quando confrontada a classificação a partir dos minutos em AF moderada/vigorosa dados pelo IPAQ e pelo acelerômetro (33% ativos vs. 48,5%, respectivamente, P = 0,009). Não foram identificadas diferenças na classificação obtida pelo IPAQ e pelo acelerômetro, quando a caminhada foi incluída (44,7% ativos vs. 48,5%, respectivamente, P = 0,618). Na estratificação por sexo, houve diferenças significantes quando a caminhada não foi incluída apenas nas mulheres. Desta forma, conclui-se que, em idosos, há concordância entre a atividade física medida pelo IPAQ e pelo acelerômetro. Em idosas, a caminhada reportada no IPAQ deve ser considerada no cálculo dos minutos despendidos em AF moderadas/vigorosas, se a mesma for percebida nestas intensidades.
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Espina, Marianela, Andrew J. Olive, Roma Kenjale, David S. Moore, S. Fernando Ausar, Robert W. Kaminski, Edwin V. Oaks, C. Russell Middaugh, William D. Picking, and Wendy L. Picking. "IpaD Localizes to the Tip of the Type III Secretion System Needle of Shigella flexneri." Infection and Immunity 74, no. 8 (August 2006): 4391–400. http://dx.doi.org/10.1128/iai.00440-06.
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ABSTRACT Shigella flexneri, the causative agent of shigellosis, is a gram-negative bacterial pathogen that initiates infection by invading cells within the colonic epithelium. Contact with host cell surfaces induces a rapid burst of protein secretion via the Shigella type III secretion system (TTSS). The first proteins secreted are IpaD, IpaB, and IpaC, with IpaB and IpaC being inserted into the host cell membrane to form a pore for translocating late effectors into the target cell cytoplasm. The resulting pathogen-host cross talk results in localized actin polymerization, membrane ruffling, and, ultimately, pathogen entry. IpaD is essential for host cell invasion, but its role in this process is just now coming to light. IpaD is a multifunctional protein that controls the secretion and presentation of IpaB and IpaC at the pathogen-host interface. We show here that antibodies recognizing the surface-exposed N terminus of IpaD neutralize Shigella's ability to promote pore formation in erythrocyte membranes. We further show that MxiH and IpaD colocalize on the bacterial surface. When TTSS needles were sheared from the Shigella surface, IpaD was found at only the needle tips. Consistent with this, IpaD localized to the exposed tips of needles that were still attached to the bacterium. Molecular analyses then showed that the IpaD C terminus is required for this surface localization and function. Furthermore, mutations that prevent IpaD surface localization also eliminate all IpaD-related functions. Thus, this study demonstrates that IpaD localizes to the TTSA needle tip, where it functions to control the secretion and proper insertion of translocators into host cell membranes.
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Aibar, A., L. García-González, A. Abarca-Sos, B. Murillo, and J. Zaragoza. "Analizando la validación del International Physical Activity Questionnaire en jóvenes adolescentes: Un protocolo modificado para la recogida de los datos." SPORT TK-Revista EuroAmericana de Ciencias del Deporte 5, no. 2 (July 25, 2016): 123. http://dx.doi.org/10.6018/264761.
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<p>La versión corta del International Physical Activity Questionnaire (IPAQ-SF) ha sido recomendada como un método eficiente para evaluar la actividad física (AF), pero su validez no ha sido analizada en adolescentes españoles. Este artículo, el cual está compuesto de dos estudios, pretende en primer lugar testar la validez del IPAQ-SF en una muestra de adolescentes españoles, y en un segundo lugar testar y comparar la validez del IPAQ-SF utilizando una versión modificada del protocolo adaptada a adolescentes.</p><p>Dado que este trabajo se divide en dos estudios, se utilizaron dos muestras independientes. Una muestra de 270 adolescentes en el estudio I (55% chicos), y otra de 151 adolescentes en el estudio II (44.6% chicos), con una edad entre 11 y 14 años de seis institutos de Huesca (España). Los participantes llevaron un acelerómetro durante siete días consecutivos y completaron el IPAQ-SF el último día. Se calculó el coeficiente de correlación de Pearson entre ambos métodos. Se utilizó el método Bland-Altman para proporcionar el error total entre los dos métodos en ambos estudios.</p><p>Se encontraron correlaciones significativas entre el IPAQ-SF y el acelerómetro para la AF moderada, vigorosa, y moderada-vigorosa. La AF moderada-vigorosa fue significativamente sobreestimada por el IPAQ-SF. Los gráficos Bland-Altman mostraron que los resultados del IPAQ-SF realizado con el protocolo modificado obtuvieron mejores niveles de acuerdo para la AF vigorosa y moderada-vigorosa.</p><p>El IPAQ-SF puede ser una herramienta válida para medir la AF en jóvenes adolescentes, especialmente cuando se aplican modificaciones metodológicas en el protocolo de recogida de datos. </p>
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Mafra Cabral, Aurora de Fátima G. C., Marcelo Medeiros Pinheiro, Charlles H. M. Castro, Marco Túlio De Mello, Sérgio Tufik, and Vera Lúcia Szejnfeld. "Physical Activity Questionnaires Do Not Accurately Estimate Fitness in Older Women." Journal of Aging and Physical Activity 26, no. 1 (January 1, 2018): 1–6. http://dx.doi.org/10.1123/japa.2016-0204.
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The objective was to compare the performance of the International Physical Activity Questionnaire (IPAQ) and Baecke questionnaire to estimate maximal oxygen uptake (VO2max) in healthy older women. One hundred healthy women aged 60 years and older answered the IPAQ and Baecke questionnaires and underwent a cardiopulmonary exercise test. The 6-min walk (6MWT), timed up and go (TUG), and handgrip strength test (HST) were also performed. Mean age and body mass index were 68.5 ± 6.3 years and 27 ± 4.7 kg/m2, respectively. No significant correlation was seen between VO2max, IPAQ and Baecke questionnaires. IPAQ did not correlate with any functional tests while Baecke correlated weakly with the 6MWT and TUG test. VO2max correlated significantly with the 6MWT (r = .38; p = .0001), HST (r = .34; p = .001), and TUG (r = −.41; p = .0001). In a multivariate regression model, TUG was the best estimator for VO2max (R2 = .217; p = .0001). In conclusion, IPAQ and Baecke questionnaires do not associate significantly with VO2max in older women.
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Veitch, William G., Rachel E. Climie, Belinda J. Gabbe, David W. Dunstan, Neville Owen, and Christina L. Ekegren. "Agreement between the International Physical Activity Questionnaire and Accelerometry in Adults with Orthopaedic Injury." International Journal of Environmental Research and Public Health 17, no. 17 (August 24, 2020): 6139. http://dx.doi.org/10.3390/ijerph17176139.
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Orthopaedic injury can lead to decreased physical activity. Valid measures for assessing physical activity are therefore needed in this population. The aim of this study was to determine the agreement and concordance between the International Physical Activity Questionnaire–Short Form (IPAQ) and device-measured physical activity and sitting time in orthopaedic injury patients. Adults with isolated upper or lower limb fracture (n = 46; mean age of 40.5 years) wore two activity monitors (ActiGraph wGT3X-BT and activPAL) for 10 days, from 2 weeks post-discharge. The IPAQ was also completed for a concurrent 7-day period. Lin’s concordance correlation coefficients and Bland–Altman plots were calculated to compare walking/stepping time, total METmins, and sitting time. The IPAQ overestimated device-derived walking time (mean difference = 2.34 ± 7.33 h/week) and total METmins (mean difference = 767 ± 1659 METmins/week) and underestimated sitting time (mean difference = −2.26 ± 3.87 h/day). There was fair concordance between IPAQ-reported and device-measured walking (ρ = 0.34) and sitting time (ρ = 0.38) and moderate concordance between IPAQ-reported and device-measured METmins (ρ = 0.43). In patients with orthopaedic injury, the IPAQ overestimates physical activity and underestimates sitting time. Higher agreement was observed in the forms of activity (walking, total PA and sitting) commonly performed by this patient group.
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Shook, Robin P., Nicole C. Gribben, Gregory A. Hand, Amanda E. Paluch, Gregory J. Welk, John M. Jakicic, Brent Hutto, Stephanie Burgess, and Steven N. Blair. "Subjective Estimation of Physical Activity Using the International Physical Activity Questionnaire Varies by Fitness Level." Journal of Physical Activity and Health 13, no. 1 (January 2016): 79–86. http://dx.doi.org/10.1123/jpah.2014-0543.
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Background:Subjective measures of moderate and vigorous physical activity (MVPA) rely on relative intensity whereas objective measures capture absolute intensity; thus, fit individuals and unfit individuals may perceive the same activity differently.Methods:Adults (N = 211) wore the SenseWear Armband (SWA) for 10 consecutive days to objectively assess sedentary time and MVPA. On day 8, participants completed the International Physical Activity Questionnaire (IPAQ) to subjectively assess sitting time and MVPA. Fitness was assessed via a maximal treadmill test, and participants were classified as unfit if the result was in the bottom tertile of the study population by sex or fit if in the upper 2 tertiles.Results:Overall, estimates of MVPA between the IPAQ and SWA were not significantly different (IPAQ minus SWA, 67.4 ± 919.1 MVPA min/wk, P = .29). However, unfit participants overestimated MVPA using the IPAQ by 37.3% (P = .02), but fit participants did not (P = .99). This between-group difference was due to overestimation, using the IPAQ, of moderate activity by 93.8 min/wk among the unfit individuals, but underestimation of moderate activity among the fit participants by 149.4 min/wk.Conclusion:Subjective measures of MVPA using the IPAQ varied by fitness category; unfit participants overestimated their MVPA and fit participants accurately estimated their MVPA.
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Tran, Van Dinh, Van Vuong Do, Ngoc Minh Pham, Chung Thanh Nguyen, Nguyen Tuyet Xuong, Jonine Jancey, and Andy H. Lee. "Validity of the International Physical Activity Questionnaire–Short Form for Application in Asian Countries: A Study in Vietnam." Evaluation & the Health Professions 43, no. 2 (December 19, 2018): 105–9. http://dx.doi.org/10.1177/0163278718819708.
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This is the first study in the Asia-Pacific region to examine the criterion validity of the self-reported International Physical Activity Questionnaire–Short form (IPAQ-SF) using accelerometers, in terms of achieving the World Health Organization’s (WHO) recommended physical activity guidelines for health benefits. Vietnamese adults aged 40–65 years ( n = 240) wore an ActiGraph GT3X+ accelerometer for at least 5 days and completed the Vietnamese version of the IPAQ-SF. Correlations between IPAQ-SF and accelerometer-measured physical activity intensities varied from .087 to .232. Mean difference in moderate–vigorous physical activity was 0.699 min/day (95% limits: [−107, 109]). Agreement on the classification of achieving the WHO’s physical activity guidelines was 69.16%. The IPAQ-SF identified 71.86% of adults who met the guidelines, whereas 56.09% of those not meeting the guidelines were classified correctly. The IPAQ-SF was found to have acceptable criterion validity and is a useful instrument to classify Vietnamese adults as achieving or not achieving the WHO’s physical activity guidelines for health benefits.
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Spiteri, Karl, Kate Grafton, John Xerri de Caro, and David Broom. "Translation of the International Physical Activity Questionnaire to Maltese and Reliability Testing." Journal for the Measurement of Physical Behaviour 4, no. 1 (March 1, 2021): 23–30. http://dx.doi.org/10.1123/jmpb.2020-0031.
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The International Physical Activity Questionnaire (IPAQ) is a widely used self-reported physical activity (PA) measure developed to allow for international cross-country comparisons. Due to its unavailability, the aim of this study was to translate the IPAQ-long to Maltese and undertake reliability testing. The IPAQ-long English version was translated into Maltese following the IPAQ guidelines, which included backwards translation. Maltese-speaking participants, aged between 18 and 69 years, were recruited through convenience sampling (n = 170). Participants completed the IPAQ-long twice within an 8- to 48-hr period. PA was calculated in MET minutes per week, and reliability was calculated using the Spearman correlation, intraclass correlation coefficient, concordance correlation coefficient, and Bland–Altman plots. A total of 155 participants completed the questionnaire at two time points. Spearman correlation was .83 (.76–.88) for total PA and .84 (.77–.89) for total sitting time. The intraclass correlation coefficient was .83 (.76–.88) and the concordance correlation coefficient was .75–.87 for total PA. The lowest reliability was for total transport, with a concordance correlation coefficient of .21−.45. Bland–Altman plots highlight that 95% of the differences fell within 2 SDs from the mean. Since the Maltese IPAQ-long has similar reliability to the English version, the authors recommend that health care professionals and PA practitioners use this tool when examining population-level PA among Maltese-speaking individuals.
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Frehlich, Levi, Christine Friedenreich, Alberto Nettel-Aguirre, Jasper Schipperijn, and Gavin R. McCormack. "Using Accelerometer/GPS Data to Validate a Neighborhood-Adapted Version of the International Physical Activity Questionnaire (IPAQ)." Journal for the Measurement of Physical Behaviour 1, no. 4 (December 1, 2018): 181–90. http://dx.doi.org/10.1123/jmpb.2018-0016.
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Despite continued interest in neighborhood correlates of physical activity, few self-report questionnaires exist that capture neighborhood-based physical activity. Furthermore, there is little evidence about the measurement validity of self-report measures of neighborhood-based physical activity. Notably, self-reported neighborhood physical activity has not been validated against combined accelerometer and global positioning system (GPS)–assessed physical activity. Thus, the purpose of this study was to estimate the concurrent validity of a recently adapted tool for capturing self-reported neighborhood-based physical activity (i.e., the Neighborhood International Physical Activity Questionnaire; N-IPAQ). Adults (n = 75) from four Calgary (Alberta, Canada) neighborhoods wore an accelerometer and GPS monitor for 7 consecutive days after which they self-reported their physical activity from the past week using the N-IPAQ. Bland-Altman plots and Spearman correlations estimated the concurrent validity between N-IPAQ and accelerometer/GPS physical activity (estimated for the administrative boundary, 400-m and 800-m radial buffers). The mean (95% Confidence Interval [CI]) difference between the N-IPAQ and accelerometer/GPS estimated total daily minutes of physical activity differed for the 400-m (1.9 min, −26.2 to 29.9), 800-m (10.6 min, −16.0 to 37.1), and administrative boundary buffers (14.7 min, −11.5 to 41.0). The strongest Spearman correlations were found between the N-IPAQ and 800-m radial buffer accelerometer-captured vigorous-intensity physical activity (r = .41 [95% CI: .18 to .60]), and the N-IPAQ and administrative boundary accelerometer-captured vigorous-intensity physical activity (r = .43 [95% CI: .20 to .62]). Our findings suggest that the N-IPAQ provides good estimates of neighborhood-based physical activity and could be used when investigating neighborhood correlates of physical activity.
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Rütten, A., H. Ziemainz, F. Schena, T. Stahl, M. Stiggelbout, Y. Vanden Auweele, A. Vuillemin, and J. Welshman. "Using different physical activity measurements in eight European countries. Results of the European Physical Activity Surveillance System (EUPASS) time series survey." Public Health Nutrition 6, no. 4 (June 2003): 371–76. http://dx.doi.org/10.1079/phn2002450.
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AbstractObjectives:The European Physical Activity Surveillance System (EUPASS) research project compared several physical activity (PA) measures (including the International Physical Activity Questionnaire (IPAQ)) in a time series survey in eight countries of the European Union. The present paper describes first results provided by the different instruments regarding PA participation, frequency and duration, both at the European and national levels. The purpose of the present study is to explore and compare the specific quality and usefulness of different indicators rather than to provide valid and reliable prevalence data. Thus, the main focus is on discussion of the methodological implications of the results presented.Methods:A time series survey based on computer-aided telephone interviewing (CATI) was carried out in eight European countries over a six-month period. The study provided for about 100 realised interviews per month in each country (i.e. ~600 per country). Descriptive statistical analysis was used to: (1) report IPAQ results on vigorous, moderate and light PA and sitting, as well as on the overall measure of calories expenditure (MET min−1), in the different countries; (2) compare these results with national PA indicators tested in EUPASS; and (3) compare IPAQ results with other European studies.Results:First, the scores for the different PA categories as well as for the overall measure of calories expenditure provided by the IPAQ appeared rather high compared with previous studies and public health recommendations. Second, the different PA measurements used in EUPASS provided completely different results. For example, national indicators used in Germany and The Netherlands to date neither corresponded in absolute values (e.g. means of PA or sitting) nor correlated with the IPAQ in any significant way. Third, comparing EU countries, the ranking for vigorous, moderate and light activities by use of the IPAQ differed from that of other European studies. For example, in the present analysis, German respondents generally showed higher scores for PA than the Finns and the Dutch, while, in contrast, findings from other studies ranked Finland before The Netherlands and Germany.Conclusions:The present analysis highlights some methodological implications of the IPAQ instrument. Among other things, differences in overall scores for PA as well as in the ranking of nations between the present results using IPAQ and other measures and studies may partly be due to the concepts of PA behind the measurements. Further analysis should investigate if the range of PA-related categories provided by the IPAQ is fully appropriate to measure all relevant daily activities; it may also consider the public health implications of mixing up different contexts of PA (e.g. work, leisure-time, transportation) in the IPAQ short version.
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Kim, Youngdeok, Ilhyeok Park, and Minsoo Kang. "Convergent validity of the International Physical Activity Questionnaire (IPAQ): meta-analysis." Public Health Nutrition 16, no. 3 (July 2, 2012): 440–52. http://dx.doi.org/10.1017/s1368980012002996.
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AbstractObjectiveThe purpose of the present study was to use a meta-analytic approach to examine the convergent validity of the International Physical Activity Questionnaire (IPAQ).DesignSystematic review by meta-analysis.SettingThe relevant studies were surveyed from five electronic databases. Primary outcomes of interest were the product-moment correlation coefficients between IPAQ and other instruments. Five separate meta-analyses were performed for each physical activity (PA) category of IPAQ: walking, moderate PA (MPA), total moderate PA (TMPA), vigorous PA (VPA) and total PA (TPA). The corrected mean effect size (ESρ) unaffected by statistical artefacts (i.e. sampling error and reliability) was calculated for each PA category. Selected moderator variables were length of IPAQ (i.e. short and long form), reference period (i.e. last 7 d and usual week), mode of administration (i.e. interviewer and self-reported), language (i.e. English and translated) and instruments (i.e. accelerometer, pedometer and subjective measure).SubjectsA total of 152 ESρ across five PA categories were retrieved from twenty-one studies.ResultsThe results showed small- to medium-sized ESρ (0·27–0·49). The highest value was observed in VPA while the lowest value was found in MPA. The ESρ were differentiated by some of the moderator variables across PA categories.ConclusionsThe study shows the overall convergent validity of IPAQ within each PA category. Some differences in degree of convergent validity across PA categories and moderator variables imply that different research conditions should be taken into account prior to deciding on use of the appropriate type of IPAQ.
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Nicaise, Virginie, Noe C. Crespo, and Simon Marshall. "Agreement Between the IPAQ and Accelerometer for Detecting Intervention-Related Changes in Physical Activity in a Sample of Latina Women." Journal of Physical Activity and Health 11, no. 4 (May 2014): 846–52. http://dx.doi.org/10.1123/jpah.2011-0412.
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Background:Even when objective physical activity (PA) measures are preferred, many intervention studies with Latina women rely on self-reports because they are more feasible and the type and domain of PA is of interest.Purpose:This study examined the sensitivity and specificity of the IPAQ for detecting intervention-related changes in physical activity compared with accelerometer measurement among Latinas.Methods:In March 2007, a community sample of 94 women (mean age = 36.31 ± 9.1 yr; mean body mass index = 31.37 ± 7.13) participated in a 12-week pedometer-based intervention to increase moderate intensity physical activity (MPA). Participants completed the Spanish-language International Physical Activity Questionnaire (Sp-IPAQ; telephone, long form) and wore an Actigraph accelerometer for 7 days at baseline and postintervention.Results:Both the IPAQ and the ActiGraph accelerometer detected intervention-related increases in MPA; however, these changes were largely uncorrelated. The IPAQ did not have acceptable level of sensitivity and specificity before and after the intervention when compared with objective assessments.Conclusions:Data suggest that it is important to improve the sensitivity and specificity of the IPAQ with Spanish-speaking participants and further research is needed to accurately measure intervention effectiveness using self-reports of PA in Latinas.
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Hallal, Pedro Curi, Cesar Gomes Victora, Jonathan Charles Kingdon Wells, Rosângela Costa Lima, and Neiva Jorge Valle. "Comparison of Short and Full-Length International Physical Activity Questionnaires." Journal of Physical Activity and Health 1, no. 3 (July 2004): 227–34. http://dx.doi.org/10.1123/jpah.1.3.227.
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Background:Our study aims to compare the short and full-length International Physical Activity Questionnaires (IPAQ).Methods:Both versions were completed by 186 subjects >14 y living in southern Brazil. Half answered the short and then the long version; the remaining subjects followed the reverse order. Physical inactivity (PI) was defined as <150 min/wk spent in moderate or vigorous activities. The Bland and Altman method and the kappa statistic were used to assess agreement between the continuous and categorical outcomes, respectively.Results:The prevalence of PI was 50% higher with the short IPAQ (42% vs. 28%). The kappa value was 53.7%. Although the correlation coefficient was moderately high (r=0.61), agreement between methods was low.Conclusions:Both analyses used show that the short and full-length IPAQ versions have poor agreement. Utilization of inappropriate statistics would lead to misinterpretation. Researchers should exercise care before comparing studies using different IPAQ versions.
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Siahaan, Paulus Parholong, Bambang Purwanto, Raden Mohammad Budiarto, and Irfiansyah Irwadi. "Physical Activity Level and Resting Heart Rate." Jurnal Ilmiah Kesehatan 3, no. 1 (April 30, 2021): 181–87. http://dx.doi.org/10.36590/jika.v3i1.103.
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Human life quality is related to the density of daily physical activity. Human diseases are related to how many steps to take within a day. The level of human physical activity can be measured using the IPAQ scoring protocol, created by WHO in 1988. The relationship between IPAQ score and health problems show to be correlated. Nevertheless, the relationship between the level of physical activity using the IPAQ score instrument and resting heart rate is not known yet. This researcher conducted this study to determine the relationship between physical activity level using the IPAQ scoring protocol and rest heart rate. This study is an observative analytic with a cross-sectional study design using a simple random sampling technique. This study was conducted in Surabaya from November 2019 until March 2020 using primary data in the form of the IPAQ scoring method and resting heart rate examination using the Polar Heart Rate tool, which is then processed using IBM SPSS Statistics 22. The IPAQ score and resting heart rate measurement results using polar heart rate tools showed that the most college student has a high degree of physical activity level (72%) and a normal level of resting heart rate (90%). When measured with the Pearson correlation test, the correlation of those two components has a negative and weak correlation (r= -0,337, p<0,05). Overall, the correlation of physical activity level and resting heart rate are inverted and weak. For further research can be done to assess other things like one’s external stressors and lifestyle.
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De Cocker, Katrien A., Ilse M. De Bourdeaudhuij, and Greet M. Cardon. "What do pedometer counts represent? A comparison between pedometer data and data from four different questionnaires." Public Health Nutrition 12, no. 1 (January 2009): 74–81. http://dx.doi.org/10.1017/s1368980008001973.
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AbstractObjectivesTo compare physical activity (PA) reported through pedometer registrations (step counts) with PA reported in four different questionnaires; to compare step count thresholds (7500, 10 000 and 12 500 steps/d) with the PA guideline of 30 min of moderate to vigorous PA (MVPA) per day.SubjectsA sample of 310 healthy adults, mean age 38·7 (sd 11·9) years, volunteered to participate. Forty-seven per cent was male and 93 % of the sample was employed.MethodsPA was assessed by interview (Minnesota Leisure Time Physical Activity Questionnaire (MLTPAQ)), three self-administered questionnaires (long version and short version of the International Physical Activity Questionnaire (long-form IPAQ, short-form IPAQ), Baecke questionnaire) and seven consecutive days of pedometer registration.ResultsStep counts correlated positively with questionnaire-based PA. The strongest correlations were found between step counts and total PA reported in the long-form IPAQ (rs = 0·37), moderate PA reported in the short-form IPAQ (rs = 0·33), total and moderate PA reported in the MLTPAQ (rs = 0·32), and the total and leisure-time PA indices (excluding sport) reported in the Baecke questionnaire (rs = 0·44). According to step counts, 22·6 % of the participants were somewhat active, 18·7 % active and 39·4 % highly active. As assessed by the long-form IPAQ, short-form IPAQ and MLTPAQ, the guideline of 30 min MVPA/d was reached by respectively 85·4 %, 84·8 % and 68·0 % of participants.ConclusionPedometer-based data offer adequate information to discriminate between levels of PA. Caution is needed when comparing active samples based on different PA recommendations.
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Benedetti, Tânia R. Bertoldo, Priscilla de Cesaro Antunes, Ciro Romélio Rodriguez-Añez, Giovana Zarpellon Mazo, and Édio Luiz Petroski. "Reprodutibilidade e validade do Questionário Internacional de Atividade Física (IPAQ) em homens idosos." Revista Brasileira de Medicina do Esporte 13, no. 1 (February 2007): 11–16. http://dx.doi.org/10.1590/s1517-86922007000100004.
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É necessário encontrar meios para quantificar de maneira eficiente e econômica o nível de atividade física da população. Os questionários são formas viáveis e econômicas, embora seja discutível a fidedignidade dessas medidas. Este estudo objetivou determinar a reprodutibilidade e a validade do Questionário Internacional de Atividade Física (IPAQ) em homens idosos. A amostra foi composta por 29 homens idosos acima de 60 anos, com média de idade de 66,6 anos (DP = 4,3), participantes do programa de extensão da Universidade Federal de Santa Catarina. Os instrumentos utilizados foram: a) IPAQ, forma longa; b) pedômetro; e c) Diário de Atividade Física de Bouchard (DAF). Para a reprodutibilidade foram realizadas duas aplicações do IPAQ, com intervalo de 21 dias (r s = 0,95). A análise estatística adotada foi a correlação de Spearman (r s), o percentual de concordância (%C), o índice kappa (k) e a plotagem de Bland e Altman. A amostra foi dividida, utilizando-se como critério a mediana. A reprodutibilidade apresentou correlação de r s = 0,95. A associação entre o IPAQ e o DAF foi de: r s = 0,38; %C = 69 e k = 0,04 e a associação entre o IPAQ e o pedômetro de: r s = 0,24; %C = 62 e k = 0,19. Concluiu-se que a validade variou de moderada a baixa, enquanto a reprodutibilidade foi adequada.
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Frehlich, Levi, Anita Blackstaffe, and Gavin R. McCormack. "Test-Retest Reliability and Walk Score® Neighbourhood Walkability Comparison of an Online Perceived Neighbourhood-Specific Adaptation of the International Physical Activity Questionnaire (IPAQ)." International Journal of Environmental Research and Public Health 16, no. 11 (May 30, 2019): 1917. http://dx.doi.org/10.3390/ijerph16111917.
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There is a growing public health interest in the contributions of the built environment in enabling and supporting physical activity. However, few tools measuring neighbourhood-specific physical activity exist. This study assessed the reliability of an established physical activity tool (International Physical Activity Questionnaire: IPAQ) adapted to capture perceived neighbourhood-specific physical activity (N-IPAQ) administered via the internet and compared N-IPAQ outcomes to differences in neighbourhood Walk Score®. A sample of n = 261 adults completed an online questionnaire on two occasions at least seven days apart. Questionnaire items captured walking, cycling, moderate-intensity, and vigorous-intensity physical activity, undertaken inside the participant’s perceived neighbourhood in the past week. Intraclass correlations, Spearman’s rank correlation, and Cohen’s Kappa coefficients estimated item test-retest reliability. Regression estimated the associations between self-reported perceived neighbourhood-specific physical activity and Walk Score®. With the exception of moderate physical activity duration, participation and duration for all physical activities demonstrated moderate reliability. Transportation walking participation and duration was higher (p < 0.05) in more walkable neighbourhoods. The N-IPAQ administered online found differences in neighbourhoods that vary in their walkability. Future studies investigating built environments and self-reported physical activity may consider using the online version of the N-IPAQ.
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Wolin, Kathleen Y., Daniel P. Heil, Sandy Askew, Charles E. Matthews, and Gary G. Bennett. "Validation of the International Physical Activity Questionnaire-Short Among Blacks." Journal of Physical Activity and Health 5, no. 5 (September 2008): 746–60. http://dx.doi.org/10.1123/jpah.5.5.746.
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Background:The International Physical Activity Questionnaire-Short Form (IPAQ-S) has been evaluated against accelerometer-determined physical activity measures in small homogenous samples of adults in the United States. There is limited information about the validity of the IPAQ-S in diverse US samples.Methods:142 Blacks residing in low-income housing completed the IPAQ-S and wore an accelerometer for up to 6 days. Both 1- and 10-minute accelerometer bouts were used to define time spent in light, moderate, and vigorous physical activity.Results:We found fair agreement between the IPAQ-S and accelerometer-determined physical activity (r = .26 for 10-minute bout, r = .36 for 1-minute bout). Correlations were higher among men than women. When we classified participants as meeting physical activity recommendations, agreement was low (kappa = .04, 10-minute; kappa = .21, 1-minute); only 25% of individuals were classified the same by both instruments (10-minute bout).Conclusions:In one of the few studies to assess the validity of a self-reported physical activity measure among Blacks, we found moderate correlations with accelerometer data, though correlations were weaker for women. Correlations were smaller when IPAQ-S data were compared using a 10- versus a 1-minute bout definition. There was limited evidence for agreement between the instruments when classifying participants as meeting physical activity recommendations.
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Hallal, Pedro C., Eduardo Simoes, Felipe F. Reichert, Mario R. Azevedo, Luiz R. Ramos, Michael Pratt, and Ross C. Brownson. "Validity and Reliability of the Telephone-Administered International Physical Activity Questionnaire in Brazil." Journal of Physical Activity and Health 7, no. 3 (May 2010): 402–9. http://dx.doi.org/10.1123/jpah.7.3.402.
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Purpose:To evaluate the validity and reliability of the telephone-administered long IPAQ version.Methods:The questionnaire was administered by telephone to adults on days 1 and 6. On day 1, the same questionnaire was administered by face-to-face interview, and accelerometers were delivered to subjects. Reliability was measured by comparing data collected using the telephone questionnaire on days 1 and 6. Validity was measured by comparing the telephone questionnaire data with (a) face-to-face questionnaire and (b) accelerometry.Results:Data from all instruments were available for 156 individuals. The Spearman correlation coefficient for telephone interview reliability was 0.92 for the leisure-time section of IPAQ, and 0.87 for the transport-related section of IPAQ. The telephone interview reliability kappa was 0.78. The Spearman correlation between the telephone-administered and the face-to-face questionnaire was 0.94 for the leisure-time and 0.82 for the transport-related section. The kappa was 0.69. There was a positive association between quartiles of accelerometer data and total telephone-administered IPAQ score (P < .001). The Spearman correlation was 0.22.Conclusions:The telephone-administered IPAQ presented almost perfect reliability and very high agreement with the face-to-face version. The agreement with accelerometer data were fair for the continuous score, but moderate for the categorical physical activity variables.
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Kolbe-Alexander, Tracy L., Estelle V. Lambert, Judith Biletnikoff Harkins, and Ulf Ekelund. "Comparison of Two Methods of Measuring Physical Activity in South African Older Adults." Journal of Aging and Physical Activity 14, no. 1 (January 2006): 98–114. http://dx.doi.org/10.1123/japa.14.1.98.
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The aim of this study was to assess the validity and reliability of the Yale Physical Activity Survey (YPAS) and the short version of the International Physical Activity Questionnaire (IPAQ) in older South African adults. The YPAS includes measures of weekly energy expenditure (EE) for housework, yard work, caregiving, exercise, and recreation. The IPAQ measures total time and EE during vigorous and moderate activity, walking, and sitting. The instruments were administered twice for test–retest reliability (men, n = 52, 68 ± 5.4 years, and women, n = 70, 66 ± 5.8 years). Data for criterion validity were obtained from accelerometers. YPAS reliability ranged from r = .44 to.80 for men and r = .59 to .99 for women (p < .0001). IPAQ reliability was lower for men (r = .29 to .76) than for women (r = .46 to .77). Criterion validity of the YPAS was .31 to .54 for men and .26 to .29 for women. The YPAS and short IPAQ had comparable results for reliability and criterion validity.
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Turbyfill, K. Ross, Antoinette B. Hartman, and Edwin V. Oaks. "Isolation and Characterization of a Shigella flexneri Invasin Complex Subunit Vaccine." Infection and Immunity 68, no. 12 (December 1, 2000): 6624–32. http://dx.doi.org/10.1128/iai.68.12.6624-6632.2000.
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ABSTRACT The invasiveness and virulence of Shigella spp. are largely due to the expression of plasmid-encoded virulence factors, among which are the invasion plasmid antigens (Ipa proteins). After infection, the host immune response is directed primarily against lipopolysaccharide (LPS) and the virulence proteins (IpaB, IpaC, and IpaD). Recent observations have indicated that the Ipa proteins (IpaB, IpaC, and possibly IpaD) form a multiprotein complex capable of inducing the phagocytic event which internalizes the bacterium. We have isolated a complex of invasins and LPS from water-extractable antigens of virulent shigellae by ion-exchange chromatography. Western blot analysis of the complex indicates that all of the major virulence antigens of Shigella, including IpaB, IpaC, and IpaD, and LPS are components of this macromolecular complex. Mice or guinea pigs immunized intranasally with purified invasin complex (invaplex), without any additional adjuvant, mounted a significant immunoglobulin G (IgG) and IgA antibody response against theShigella virulence antigens and LPS. The virulence-specific response was very similar to that previously noted in primates infected with shigellae. Guinea pigs (keratoconjunctivitis model) or mice (lethal lung model) immunized intranasally on days 0, 14, and 28 and challenged 3 weeks later with virulent shigellae were protected from disease (P < 0.01 for both animal models).
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Silva, Gabriely Azevêdo Gonçalo, Jéssica Danielle Medeiros da Fonsêca, Ícaro Diogo Tavares de Souza, Luana Augusta Pimenta Bezerra, Johnnatas Mikael Lopes, and Karla Luciana Magnani. "Nível de atividade física e aptidão cardiorrespiratória em escolares com sobrepeso/obesidade." ConScientiae Saúde 14, no. 2 (August 11, 2015): 263–69. http://dx.doi.org/10.5585/conssaude.v14n2.5596.
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Introdução: Obesidade infantil, inatividade física e baixo nível de aptidão física geram consequências precoces na saúde cardiovascular e metabólica. Objetivos: Comparar o nível de atividade física (IPAQ versão curta) com aptidão cardiorrespiratória (shuttle run test) em escolares com sobrepeso/obesos. Métodos: Realizou-se estudo da prevalência de sobrepeso/obesidade em 334 escolares, divididos posteriormente em dois grupos: G1, com sobrepeso/obesos (n=39), e G2, eutróficos (n=39), para a aplicação do IPAQ versão curta e shuttle run test. Resultados: Classificaram-se 261 escolares como eutróficos; 56 como obesos/com sobrepeso; e 17 com desnutrição/desnutrição severa. Não houve diferença significativa no IPAQ versão curta (p
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Ruescas-Nicolau, Maria-Arantzazu, María Luz Sánchez-Sánchez, Sara Cortés-Amador, Sofía Pérez-Alenda, Anna Arnal-Gómez, Assumpta Climent-Toledo, and Juan J. Carrasco. "Validity of the International Physical Activity Questionnaire Long Form for Assessing Physical Activity and Sedentary Behavior in Subjects with Chronic Stroke." International Journal of Environmental Research and Public Health 18, no. 9 (April 29, 2021): 4729. http://dx.doi.org/10.3390/ijerph18094729.
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Validation studies of questionnaires used to assess physical activity (PA) and sedentary behavior (SB) in stroke survivors are scarce. This cross-sectional study aimed to examine the validity of the International Physical Activity Questionnaire long-form (IPAQ-LF) in community living adults with post-stroke sequelae (≥6 months) and preserved ambulation. Participants’ functional mobility, lower limb strength, ambulatory level, stroke severity, and disability were assessed. An accelerometer (ActiGraph GT3X+) was worn for ≥7 consecutive days. Subsequently, the IPAQ-LF was interview-administered. Fifty-six participants (58.1 ± 11.1 years, 66.1% male) were included. A strong correlation between the two methods was found for total PA time (ρ = 0.55, p < 0.001). According to the Bland-Altman analyses, over-reporting moderate-to-vigorous PA and under-reporting total PA in the IPAQ-LF were found in those participants with higher PA levels. Both methods measured sedentary time similarly, though random error was observed between them. Moderate-strong correlations were found between the IPAQ-LF and physical function (ρ = 0.29–0.60, p < 0.05). In conclusion, in people with chronic stroke, the IPAQ-LF presented acceptable levels of validity for estimating total PA time in those who are insufficiently active. Therefore, it could be a useful tool to screen for inactive individuals with chronic stroke who can benefit from PA interventions addressed to implement healthier lifestyles.
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Manta, Andrei, Elena Cojocaru, Maria Magdalena Leon-Constantin, Alexandra Maștaleru, Mihai Roca, Cristina Rusu, Sabina Alexandra Cojocariu, and Florin Mitu. "IPAQ-L and CPET Usefulness in a North-Eastern Romanian Population Undergoing Cardiac Rehabilitation." Applied Sciences 11, no. 12 (June 13, 2021): 5483. http://dx.doi.org/10.3390/app11125483.
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(1) Background: Current guidelines emphasize the importance of regular moderate and/or high intensity aerobic exercises in cardiovascular disease prevention. Our study aimed to evaluate the utility of the International Physical Activity Questionnaire Long Form (IPAQ-L) for its physical activity (PA) quantification in patients with heart failure with reduced ejection fraction. (2) Methods: We conducted a cross-sectional study of 110 patients aged between 34 and 69 years admitted to the Cardiovascular Rehabilitation Clinic. All patients underwent a clinical examination, blood tests, a cycle ergometer exercise stress test and individual assessment of their weekly PA level using the IPAQ-L. (3) Results: Obesity, hypertension and type 2 diabetes were highly prevalent in our study group but did not influence the IPAQ-L results. In terms of physical performance, moderate intensity was the most common level of intensity found in our study group. Regarding the data on the relationship between the IPAQ-L questionnaire and cardiopulmonary exercise testing (CPET) parameters, vigorous PA was correlated with predicted maximal oxygen uptake (p = 0.025) and moderate PA, in addition to walking, were correlated with heart rate reserve (p = 0.005 and p = 0.009, respectively). (4) Conclusions: IPAQ-L can be used for the evaluation of individual PA levels within a cardiovascular rehabilitation program, but cannot substitute for the importance and utility of CPET.
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Taylor, Natalie Jayne, Scott E. Crouter, Rebecca J. Lawton, Mark T. Conner, and Andy Prestwich. "Development and Validation of the Online Self-Reported Walking and Exercise Questionnaire (OSWEQ)." Journal of Physical Activity and Health 10, no. 8 (November 2013): 1091–101. http://dx.doi.org/10.1123/jpah.10.8.1091.
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Background:Precise measurement of physical activity (PA) is required to identify current levels and changes in PA within a population, and to gauge effectiveness of interventions.Methods:The Online Self-reported Walking and Exercise Questionnaire (OSWEQ) was developed for monitoring PA via the Web. Forty-nine participants (mean ± SD; age = 27 ± 11.9yrs) completed the OSWEQ and International PA Questionnaire (IPAQ) short form 3 times [T1/T2/T3 (separated by 7-days)] and wore an Actigraph-GT3X-accelerometer for 7-days between T2-T3. For each measure, estimates of average MET·min·day−1 and time spent in moderate PA (MPA), vigorous PA (VPA) and moderate and vigorous PA (MVPA) were obtained.Results:The OSWEQ and IPAQ demonstrated test-retest reliability for MPA, VPA, and MVPA minutes and average MET·min·day−1 between T1-T2 (OSWEQ range, r = .71–.77; IPAQ range, r = .59–.79; all, P < .01). The OSWEQ and IPAQ, compared with the GT3X, had lower estimates (mean error ± 95% PI) of MVPA MET·min·day−1 by 150.4 ± 477.6 and 247.5 ± 477.5, respectively.Conclusions:The OSWEQ demonstrates good test-retest reliability over 7-days and better group level estimates of MET·min·day−1 than the IPAQ, compared with the GT3X. These results suggest that the OSWEQ is a reliable and valid measure among young/working age adults and could be useful for monitoring PA trends over time.
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Pires, Andréia Antonia Padilha, Raymundo Pires Junior, and Rodrigo Franco de Oliveira. "Concordância entre os formatos impresso e eletrônico do IPAQ-L." Revista Brasileira de Medicina do Esporte 20, no. 6 (December 2014): 474–79. http://dx.doi.org/10.1590/1517-86922014200602134.
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Introdução: Existe uma diversidade de questionários para mensurar o nível de atividade física. O Questionário Internacional da Atividade Física (IPAQ) vem sendo amplamente utilizado, entretanto, o mesmo ainda não foi validado no formato eletrônico.Objetivo: Identificar a concordância entre o IPAQ versão longa no formato impresso e versão eletrônica.Métodos: Participaram do estudo 218 alunos de uma universidade privada, sendo 109 de cada gênero (idade ≤ 25 e ≥ 26). Na primeira etapa, os participantes receberam informações prévias sobre o preenchimento do formulário IPAQ-L (versão impressa), após esta etapa foi realizado o preenchimento da versão eletrônica (WebIpaq).Resultados: Nenhuma diferença significativa foi encontrada na comparação entre a versão impressa e eletrônica nas seções do IPAQ-L. O mesmo ocorreu quanto à Prática Habitual da Atividade Física (PHAF) para as proporções analisadas mediante qui-quadrado (X²). Reprodutibilidade excelente foi verificada através do coeficiente de correlação intraclasse (CCI), alcançando valores superiores a 0,82 (IC95%: 0,68-0,90, idade ≥ 26 anos) e 0,90 (IC95%: 0,87-0,93) na análise conjunta. No índice Kappa ponderado a concordância foi substancial, ficando entre 0,62 (IC95%: 0,41-0,77, gênero masculino) a 0,67 (IC95%: 0,53-0,81, idade ≤ 25 anos), demonstrando elevada concordância na análise de Bland e Altman.Conclusão: Diante dos resultados encontrados nesse estudo, pode-se inferir que o formato eletrônico do IPAQ-L atende aos pressupostos de reprodutibilidade e concordância, oferecendo alternativa moderna e eficaz nas análises da Prática Habitual da Atividade Física.
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Ferreira Freitas, Ronilson, Josiane Santos Brant Rocha, Laercio Ives Santos, André Luiz de Carvalho Braule Pinto, Maria Helena Rodrigues Moreira, Fernanda Piana Santos Lima de Oliveira, Maria Suzana Marques, et al. "Validity and precision of the International Physical Activity Questionnaire for climacteric women using computational intelligence techniques." PLOS ONE 16, no. 1 (January 14, 2021): e0245240. http://dx.doi.org/10.1371/journal.pone.0245240.
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This study aimed to evaluate the validity and precision of the International Physical Activity Questionnaire (IPAQ) for climacteric women using computational intelligence techniques. The instrument was applied to 873 women aged between 40 and 65 years. Considering the proposal to regroup the set of data related to the level of physical activity of climacteric women using the IPAQ, we used 2 algorithms: Kohonen and k-means, and, to evaluate the validity of these clusters, 3 indexes were used: Silhouette, PBM and Dunn. The questionnaire was tested for validity (factor analysis) and precision (Cronbach's alpha). The Random Forests technique was used to assess the importance of the variables that make up the IPAQ. To classify these variables, we used 3 algorithms: Suport Vector Machine, Artificial Neural Network and Decision Tree. The results of the tests to evaluate the clusters suggested that what is recommended for IPAQ, when applied to climacteric women, is to categorize the results into two groups. The factor analysis resulted in three factors, with factor 1 being composed of variables 3 to 6; factor 2 for variables 7 and 8; and factor 3 for variables 1 and 2. Regarding the reliability estimate, the results of the standardized Cronbach's alpha test showed values between 0.63 to 0.85, being considered acceptable for the construction of the construct. In the test of importance of the variables that make up the instrument, the results showed that variables 1 and 8 presented a lesser degree of importance and by the analysis of Accuracy, Recall, Precision and area under the ROC curve, there was no variation when the results were analyzed with all IPAQ variables but variables 1 and 8. Through this analysis, we concluded that the IPAQ, short version, has adequate measurement properties for the investigated population.
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Guedes, Dartagnan Pinto, Cynthia Correa Lopes, and Joana Elisabete Ribeiro Pinto Guedes. "Reprodutibilidade e validade do Questionário Internacional de Atividade Física em adolescentes." Revista Brasileira de Medicina do Esporte 11, no. 2 (April 2005): 151–58. http://dx.doi.org/10.1590/s1517-86922005000200011.
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O Questionário Internacional de Atividade Física (IPAQ) foi originalmente desenvolvido com finalidade de estimar o nível de prática habitual de atividade física de populações de diferentes países. O objetivo deste estudo foi analisar a reprodutibilidade e a validade do IPAQ versão curta em adolescentes. A amostra foi constituída por 161 adolescentes (92 moças e 69 rapazes) com idade entre 12 e 18 anos. A reprodutibilidade foi obtida por intermédio de réplicas de aplicação do questionário, com intervalo de duas semanas, envolvendo coeficiente de correlação de Spearman (Rs) e técnica de Bland e Altman (B-A). A validade foi analisada mediante comparações entre o tempo despendido em atividades do cotidiano relatadas pelos adolescentes mediante o IPAQ e por instrumento retrospectivo de auto-recordação das atividades diárias (R-24h). Para tanto, utilizou-se do Rs e da proporção de concordância Kappa. Os resultados revelaram Rs significativos em linguagem estatística entre 0,49 e 0,70 nas moças e entre 0,56 e 0,83 nos rapazes. Embora esses valores sejam semelhantes aos encontrados em outros estudos, mediante a técnica de B-A verifica-se limitada capacidade de concordância entre réplicas de aplicação do questionário. Quanto à validade, o tempo despendido nos indicadores de atividade física mediante a aplicação do IPAQ foi modestamente correlacionado com as informações provenientes do R-24h (entre 0,09 e 0,51). Entretanto, quando da análise do tempo despendido em atividades que envolvem intensidades moderada e vigorosa, os indicadores de validação aumentaram consideravelmente, sobretudo entre os rapazes com mais idade. Como conclusão, os resultados do estudo mostram que, em adolescentes de ambos os sexos com mais de 14 anos, o IPAQ apresenta aceitáveis propriedades de medida para monitorar níveis habituais de atividade física. Em adolescentes mais jovens (< 14 anos), os achados indicam que o uso do IPAQ versão curta apresenta algumas limitações.
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Nakamura, Priscila Missaki, Camila Bosquiero Papini, Inaian Pignatti Teixeira, Emerson Sebastião, Sebastião Gobbi, Kelly Lynn Cordeira, and Eduardo Kokubun. "Concordance between Stages of Behavior Change Questionnaire and IPAQ." Motriz: Revista de Educação Física 19, no. 4 (December 2013): 776–82. http://dx.doi.org/10.1590/s1980-65742013000400016.
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A low rate of physical activity (PA) participation is observed worldwide. The identification of feasible and reliable instruments able to accurately measuring PA and help in the development of interventions to promote PA are necessary. This study aimed to analyze the concordance between the Stages of Behavior Change Questionnaire (SBCQ) and the International Physical Activity Questionnaire (IPAQ long-version) in assessing adult leisure-time physical activity (LTPA). A total of 1.588 adults completed the IPAQ to assess LTPA and the participants who performed more than 10 min/week were classified in active individuals. Using the SBCQ, active individuals were those classified in the action or maintenance stage and inactive individuals were those classified in the precontemplation, contemplation or preparation stage. The concordance between SBCQ and IPAQ was found to be 0.80. Separated by gender, it was observed a concordance between the two instruments of 0.82 for women, and 0.77 for men. Regarding age group, it was found to be 0.81 for young and middle-aged adults, and 0.77 for older people. The SBCQ presented a very good concordance with IPAQ to assess LTPA.