Relevant bibliographies by topics / Hip-knee-ankle angle

Academic literature on the topic 'Hip-knee-ankle angle'

Author: Grafiati
Published: 10 December 2022
Last updated: 28 January 2023

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Journal articles on the topic "Hip-knee-ankle angle"

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Di Giminiani, Riccardo, Davide Di Lorenzo, Stefano La Greca, Luca Russo, Francesco Masedu, Rocco Totaro, and Elvira Padua. "Angle-Angle Diagrams in the Assessment of Locomotion in Persons with Multiple Sclerosis: A Preliminary Study." Applied Sciences 12, no. 14 (July 18, 2022): 7223. http://dx.doi.org/10.3390/app12147223.

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Gait analysis is clinically relevant in persons with multiple sclerosis (PwMS) and consists of several joint angular displacement–time relationships and spatiotemporal parameters. However, it lacks representation by means of diagrams in which knee-angle/hip-angle and knee-angle/ankle-angle variations are plotted against each other at the same points of time. Three-dimensional kinematic analysis was performed on 20 subjects (10 PwMS/10 healthy controls, HCs), and the knee-angle/hip-angle and knee-angle/ankle-angle diagrams of both lower limbs were determined in the sagittal plane while walking on a motorized treadmill. The area (a quantifier of range of motion) and the perimeter (a quantifier of coordination) of angle-angle diagram loops were calculated. PwMS showed reduced knee-angle/ankle-angle loops compared to HCs (p < 0.05), whereas the hip-angle/ankle-angle loops between the PwMS and HCs was not significant (p > 0.05). Similarly, the activation of leg muscles showed significant differences between PwMS and HCs (p ranged from 0.05 to 0.001). The results indicate that the proposed knee-angle/hip-angle diagram is feasible and could be applied as a reliable tool in future studies aimed at assessing the acute and long-term effects of specific exercise programmes and/or pharmacological treatment in PwMS.
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Usami, Takuya, Kazuki Nishida, Hirotaka Iguchi, Taro Okumura, Hiroaki Sakai, Ruido Ida, Mitsuya Horiba, et al. "Evaluation of lower extremity gait analysis using Kinect V2® tracking system." SICOT-J 8 (2022): 27. http://dx.doi.org/10.1051/sicotj/2022027.

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Introduction: Microsoft Kinect V2® (Kinect) is a peripheral device of Xbox® and acquires information such as depth, posture, and skeleton definition. In this study, we investigated whether Kinect can be used for human gait analysis. Methods: Ten healthy volunteers walked 20 trials, and each walk was recorded by a Kinect and infrared- and marker-based-motion capture system. Pearson’s correlation and overall agreement with a method of meta-analysis of Pearson’s correlation coefficient were used to assess the reliability of each parameter, including gait velocity, gait cycle time, step length, hip and knee joint angle, ground contact time of foot, and max ankle velocity. Hip and knee angles in one gait cycle were calculated in Kinect and motion capture groups. Results: The coefficients of correlation for gait velocity (r = 0.92), step length (r = 0.81) were regarded as strong reliability. Gait cycle time (r = 0.65), minimum flexion angle of hip joint (r = 0.68) were regarded as moderate reliability. The maximum flexion angle of the hip joint (r = 0.43) and maximum flexion angle of the knee joint (r = 0.54) were regarded as fair reliability. Minimum flexion angle of knee joint (r = 0.23), ground contact time of foot (r = 0.23), and maximum ankle velocity (r = 0.22) were regarded as poor reliability. The method of meta-analysis revealed that participants with small hip and knee flexion angles tended to have poor correlations in maximum flexion angle of hip and knee joints. Similar trajectories of hip and knee angles were observed in Kinect and motion capture groups. Conclusions: Our results strongly suggest that Kinect could be a reliable device for evaluating gait parameters, including gait velocity, gait cycle time, step length, minimum flexion angle of the hip joint, and maximum flexion angle of the knee joint.
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Harrison, Kathryn, Adam Sima, Ronald Zernicke, Benjamin J. Darter, Mary Shall, D. S. Blaise Williams, and Sheryl Finucane. "Comparison of Frontal and Transverse Plane Kinematics Related to Knee Injury in Novice Versus Experienced Female Runners." Journal of Applied Biomechanics 37, no. 3 (June 1, 2021): 254–62. http://dx.doi.org/10.1123/jab.2020-0140.

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Novice runners experience a higher incidence of knee injury than experienced runners, which may be related to aberrant frontal and transverse plane kinematics. However, differences in kinematics between novice and experienced runners have not been fully explored. For this study, 10 novice and 10 experienced female runners ran on a treadmill at 2.68 m/s. Ankle, knee, and hip joint angles during the stance phase were measured using a 3-dimensional motion capture system and modeled using cubic splines. Spline models were compared between groups using a generalized linear model (α = .05). Ninety-five percent confidence intervals of the difference between joint angles throughout stance were constructed to identify specific periods of stance where groups differed in joint position. Angle–angle diagrams of ankle and hip position in the frontal and transverse planes were constructed to depict joint coordination. Novice runners displayed less hip adduction, but greater knee abduction and knee internal rotation compared to experienced runners. Differences in knee joint position may be explained by coordination of hip and ankle motion. Greater knee abduction and knee internal rotation displayed by novice runners compared with experienced runners may help to explain their higher risk for injury.
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Kolodziej, Mathias, Steffen Willwacher, Kevin Nolte, Marcus Schmidt, and Thomas Jaitner. "Biomechanical Risk Factors of Injury-Related Single-Leg Movements in Male Elite Youth Soccer Players." Biomechanics 2, no. 2 (May 26, 2022): 281–300. http://dx.doi.org/10.3390/biomechanics2020022.

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Altered movement patterns during single-leg movements in soccer increase the risk of lower-extremity non-contact injuries. The identification of biomechanical parameters associated with lower-extremity injuries can enrich knowledge of injury risks and facilitate injury prevention. Fifty-six elite youth soccer players performed a single-leg drop landing task and an unanticipated side-step cutting task. Three-dimensional ankle, knee and hip kinematic and kinetic data were obtained, and non-contact lower-extremity injuries were documented throughout the season. Risk profiling was assessed using a multivariate approach utilising a decision tree model (classification and regression tree method). The decision tree model indicated peak knee frontal plane angle, peak vertical ground reaction force, ankle frontal plane moment and knee transverse plane angle at initial contact (in this hierarchical order) for the single-leg landing task as important biomechanical parameters to discriminate between injured and non-injured players. Hip sagittal plane angle at initial contact, peak ankle transverse plane angle and hip sagittal plane moment (in this hierarchical order) were indicated as risk factors for the unanticipated cutting task. Ankle, knee and hip kinematics, as well as ankle and hip kinetics, during single-leg high-risk movements can provide a good indication of injury risk in elite youth soccer players.
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Umberger, Brian R., and Philip E. Martin. "Testing the Planar Assumption during Ergometer Cycling." Journal of Applied Biomechanics 17, no. 1 (February 2001): 55–62. http://dx.doi.org/10.1123/jab.17.1.55.

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Lower extremity motions during cycling are often assumed to occur in the sagittal plane. While seemingly logical, this assumption has not been rigorously tested. Frontal plane rotation of the ankle joint (inversion/eversion) has been studied extensively during gait but infrequently during cycling despite the suggestion that excessive eversion or pronation may be related to overuse knee injuries. Two-dimensional sagittal plane hip, knee, and ankle joint kinematics were generally found to be similar to simultaneously measured 3-D values. Despite the similarity in motion patterns, maximum hip angle was 34° more flexed in 2-D than 3-D. Maximum and minimum frontal plane ankle joint angles were similar in 2-D and 3-D. However, during the middle of the pedal cycle, 2-D frontal plane ankle joint motion deviated from 3-D, such that maximum ankle eversion was reached 36% of the pedal cycle later in 2-D versus 3-D. The discrepancy at the hip was due primarily to differences in hip angle definition for 2-D and 3-D approaches, and an alternate convention for hip angle in 2-D is suggested. Discrepancies in frontal plane ankle joint motion are due to weaknesses in the planar approach and would be difficult to overcome without resorting to 3-D measurement.
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Yu, Peimin, Zhen Gong, Yao Meng, Julien S. Baker, Bíró István, and Yaodong Gu. "The Acute Influence of Running-Induced Fatigue on the Performance and Biomechanics of a Countermovement Jump." Applied Sciences 10, no. 12 (June 23, 2020): 4319. http://dx.doi.org/10.3390/app10124319.

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Lower limb kinematics and kinetics during the landing phase of jumping might change because of localized muscle fatigue. This study aimed to investigate the acute influence of running-induced fatigue on the performance and lower limb kinematics and kinetics of a countermovement jump. A running-induced fatigue protocol was applied to fifteen male subjects. Participants were asked to perform three successful countermovement jumps before and after fatigue. Kinematic and kinetic data were collected to compare any fatigue influences. Wilcoxon signed-rank tests and paired-sample t-tests were used to analyze the data. Running-induced fatigue did not significantly change vertical jump height and peak vertical ground reaction forces (GRF) during the push-off and landing phases. Lower limb biomechanics significantly changed, especially kinematic parameters. During the push-off phase, fatigue resulted in an increased ankle peak inversion angle, knee minimal flexion angle, knee peak abduction angle, and hip peak flexion moment. In addition, the range of motion (ROM) of the ankle and knee joints in the frontal plane was also increased. Certain parameters decreased as a result of fatigue, such as the ankle peak internal rotation angle, hip peak abduction angle, the ROM of the ankle joint in the sagittal plane, and ROM of the hip joint in the frontal plane. During the landing phase, the peak inversion angle and peak external rotation angle of the ankle joint, peak abduction angle of the knee and hip joint, ROM of the ankle joint in the horizontal plane, ROM of the ankle and knee joint in the frontal plane were all increased as a result of fatigue. The knee peak flexion moment and hip peak extension moment, however, were decreased. Under fatigue conditions, lower limb kinetics and kinematics were changed during both the push-off and landing phases. More attention should be focused on the landing phase and the last period of the push-off phase due to potentially higher risks of injury. The findings of the current study may be beneficial to athletes and coaches in preventing jumping related injuries.
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Kondo, Hitoshi. "Changes in the Ground Reaction Force, Lower-Limb Muscle Activity, and Joint Angles in Athletes with Unilateral Ankle Dorsiflexion Restriction During A Rebound-Jump Task." Journal of Functional Morphology and Kinesiology 3, no. 4 (October 26, 2018): 52. http://dx.doi.org/10.3390/jfmk3040052.

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Background: This study compared differences between a control group and a group with unilateral ankle dorsiflexion restriction in the ground reaction force (GRF), angles of the lower limbs joints, and muscular activity during a rebound-jump task in athletes who continue to perform sports activities with unilateral ankle dorsiflexion restriction. Methods: The athletes were divided into the following two groups: The dorsiflexion group included those with a difference of ≥7° between bilateral ankle dorsiflexion angles (DF), and the control group included those with a difference of <7° between the two ankles (C). An ankle foot orthosis was attached to subjects in group C to apply a restriction on the right-angle dorsiflexion angle. The percentage of maximum voluntary contraction (%MVC) of the legs musculature, components of the GRF, and the hip and knee joint angles during the rebound-jump task were compared between groups DF and C. Results: Group DF showed increased %MVC of the quadriceps muscle, decreased upward component of the GRF, decreased hip flexion, and increased knee eversion angles. Conclusions: This study highlighted that athletes with ankle dorsiflexion restriction had significantly larger knee eversion angles in the rebound-jump task. The reduced hip flexion was likely caused by the restricted ankle dorsiflexion and compensated by the observed increase in quadriceps muscle activation when performing the jump.
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Molina-Rueda, Francisco, Pilar Fernández-González, Alicia Cuesta-Gómez, Aikaterini Koutsou, María Carratalá-Tejada, and Juan Carlos Miangolarra-Page. "Test–Retest Reliability of a Conventional Gait Model for Registering Joint Angles during Initial Contact and Toe-Off in Healthy Subjects." International Journal of Environmental Research and Public Health 18, no. 3 (February 2, 2021): 1343. http://dx.doi.org/10.3390/ijerph18031343.

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The aim of this study was to evaluate the test–retest reliability of a conventional gait model (CGM), the Plug-in Gait model, to calculate the angles of the hip, knee, and ankle during initial contact (IC) and toe-off (TO). Gait analysis was performed using the Vicon Motion System® (Oxford Metrics, Oxford, UK). The study group consisted of 50 healthy subjects. To evaluate the test–retest reliability, the intraclass correlation coefficient (ICC), the standard error of measurement (SEM), the minimal detectable change (MDC), and the Bland–Altman analysis with 95% limits of agreement were calculated. The ICC for the joint angles of the hip, knee, and ankle was higher than 0.80. However, the ankle angle at IC had an ICC lower than 0.80. The SEM was <5° for all parameters. The MDC was large (>5°) for the hip angle at IC. The Bland–Altman analysis indicated that the magnitude of divergence was between ±5° and ±9° at IC and around ±7° at TO. In conclusion, the ICC for the plug-in gait model was good for the hip, knee, and ankle angles during IC and TO. The plots revealed a disagreement between measurements that should be considered in patients’ clinical assessments.
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Biscarini, Andrea, Samuele Contemori, Cristina V. Dieni, and Roberto Panichi. "Joint Torques and Tibiofemoral Joint Reaction Force in the Bodyweight “Wall Squat” Therapeutic Exercise." Applied Sciences 10, no. 9 (April 26, 2020): 3019. http://dx.doi.org/10.3390/app10093019.

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This study provides a biomechanical analysis of the bodyweight wall-squat exercise considering four exercise variants: knee angle; horizontal hip-ankle distance (d); shift between the rearfoot and forefoot of the centre of pressure (xGR) of the ground reaction force; back supported via the scapular or pelvic zone. The ankle and hip angles corresponding to a given knee angle can be modulated, changing the distance d, to manage limitation in lumbopelvic and ankle mobility. The knee-extensor muscles can be overloaded (250 Nm muscle torque) with knees flexed at 90°, back supported through the pelvic zone, and feet away from the wall (d = 50 cm). Scapular support, xGR at forefoot, and d = 50 cm, yield a higher level of muscle-torque for hip-extension (130 Nm) and knee-flexion (65 Nm), with knees at 90° of flexion or near full extension, respectively. Ankle-dorsiflexion (plantarflexion) muscle torque up to 40 Nm is reached with xGR at the forefoot (rearfoot). This study may aid trainers and therapists to finely modulate the muscle torques (up to the above-mentioned levels) by an appropriate selection of exercise variants for training or rehabilitation purposes. Low levels (60 N) of anterior tibial pull may occur near 25° of knee flexion with x GR at the rearfoot.
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Ewing, Katie A., Rezaul K. Begg, Mary P. Galea, and Peter V. S. Lee. "Effects of Prophylactic Knee Bracing on Lower Limb Kinematics, Kinetics, and Energetics During Double-Leg Drop Landing at 2 Heights." American Journal of Sports Medicine 44, no. 7 (April 13, 2016): 1753–61. http://dx.doi.org/10.1177/0363546516637178.

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Background: Anterior cruciate ligament (ACL) injuries commonly occur during landing maneuvers. Prophylactic knee braces were introduced to reduce the risk of ACL injuries, but their effectiveness is debated. Hypotheses: We hypothesized that bracing would improve biomechanical factors previously related to the risk of ACL injuries, such as increased hip and knee flexion angles at initial contact and at peak vertical ground-reaction force (GRF), increased ankle plantar flexion angles at initial contact, decreased peak GRFs, and decreased peak knee extension moment. We also hypothesized that bracing would increase the negative power and work of the hip joint and would decrease the negative power and work of the knee and ankle joints. Study Design: Controlled laboratory study. Methods: Three-dimensional motion and force plate data were collected from 8 female and 7 male recreational athletes performing double-leg drop landings from 0.30 m and 0.60 m with and without a prophylactic knee brace. GRFs, joint angles, moments, power, and work were calculated for each athlete with and without a knee brace. Results: Prophylactic knee bracing increased the hip flexion angle at peak GRF by 5.56° ( P < .001), knee flexion angle at peak GRF by 4.75° ( P = .001), and peak hip extension moment by 0.44 N·m/kg ( P < .001). Bracing also increased the peak hip negative power by 4.89 W/kg ( P = .002) and hip negative work by 0.14 J/kg ( P = .001) but did not result in significant differences in the energetics of the knee and ankle. No differences in peak GRFs and peak knee extension moment were observed with bracing. Conclusion: The application of a prophylactic knee brace resulted in improvements in important biomechanical factors associated with the risk of ACL injuries. Clinical Relevance: Prophylactic knee braces may help reduce the risk of noncontact knee injuries in recreational and professional athletes while playing sports. Further studies should investigate different types of prophylactic knee braces in conjunction with existing training interventions so that the sports medicine community can better assess the effectiveness of prophylactic knee bracing.
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Dissertations / Theses on the topic "Hip-knee-ankle angle"

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Coleman, Scott. "Functional analysis of the articulating figure skate." Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file 0.38 Mb., 40 p, 2006. http://proquest.umi.com/pqdlink?did=1037890041&Fmt=7&clientId=79356&RQT=309&VName=PQD.

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Sampson, Aared D. "Differences in Joint Moments at the Hip, Knee, and Ankle While Wearing Running Shoes and Distance Spikes." Diss., CLICK HERE for online access, 2009. http://contentdm.lib.byu.edu/ETD/image/etd3077.pdf.

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Cami, Sonila. "Effects of Body Mass Index and Walking Speed in Gait Biomechanics of Young Adult Males." Scholarly Repository, 2007. http://scholarlyrepository.miami.edu/oa_theses/86.

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Gait biomechanics of forty male subjects was evaluated at normal and fast walking speeds. The forty subjects composed four groups based on their body mass index, with ten subjects in each of the groups: underweight, normal weight, overweight and obese. To our knowledge this is the first comprehensive 3-dimensional kinetic and kinematic gait analysis of all four groups based on body mass index. The obese subjects walked with significantly slower gait speed by taking shorter steps and strides, while having significantly higher step widths and longer gait cycle times than the other subjects. The obese subjects spent significantly less time in single support and more time in double support than their non-obese counterparts. These adjustments in temporal characteristics for the obese participants may be as a result of the gait compensation for the additional body weight in order to give them the most efficient, stable and balanced walking ability. Body mass index affected significantly the forces and moments at the ankle, knee and hip in the medial-lateral plane while speed effects were more prominent in the sagittal and transverse planes. These results suggest that an increase in the body weight would affect the gait stability while increasing the speed will affect the gait progression. Contrary to most researchers beliefs that an increase of the body weight would increase the forces and moments of the knee in all three planes, this study was able to prove that the actual forces and moments in the medial-lateral plane for the knee joint decrease while the ones in the sagittal plane increase. On the other hand, the hip joint in the medial-lateral plane displays the highest forces and moment for the obese subjects. These results are indicative of a gait compensation related to increasing body weight in the medial-lateral compartment of the lower extremity joints. Recommendations for further studies and follow up experiments are enclosed.
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de, Flon Peter. "Långdistanslöpning och artros : En systematisk litteraturstudie." Thesis, Gymnastik- och idrottshögskolan, GIH, Institutionen för idrotts- och hälsovetenskap, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:gih:diva-3359.

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Sammanfattning   Syfte och frågeställningar Syftet med denna studie var att sammanställa kvalitet på och resultat av studier som undersökt om långdistanslöpning ger artros i höft-, knä- eller fotleder. Finns det vetenskaplig evidens för att långdistanslöpning ger artros i höft-, knä- eller fotleder? Vilka styrkor och svagheter har de studier som försökt utröna om samband finns mellan långdistanslöpning och artros i höft-, knä- eller fotleder?   Metod Sökning av litteratur utfördes i PubMed, CINAHL, Cochrane Library och PEDro. Detta resulterade i att tio artiklar inkluderades för närmare granskning och sammanställning. Utifrån artiklarnas sammantagna bevisvärde poängsattes och graderades artiklarna efter evidensnivå enligt Statens Beredning för medicinsk Utvärderings (SBU) granskningsmallar för kohortstudier med kontrollgrupper.   Resultat Endast en av tio studier visar ett positivt samband mellan långdistanslöpning och artros i höft-, knä- eller fotleder, i detta fall höftledsartros. Studierna har ingen tydlig och gemensam definition över vad långdistanslöpning är. De granskade studierna använder sig av olika mätmetoder för att bedöma leddegenerationen, både av självrapportering och av olika diagnostiska kriterier för artros. Alla studier har inslag av selektionsbias.   Slutsats En indikation på att det inte finns ett vetenskapligt stöd för att långdistanslöpning ger höft-, knä- eller fotledsartros hos människor. Studierna har brister i hantering av confounders och selektionsbias och bedöms vara av låg eller medelhög kvalitet.
Abstract   Aim The purpose of this study was to compile the quality and results of studies that examined if long-distance running gives osteoarthritis of the hip, knee or ankle joints. Is there scientific evidence that long-distance running gives osteoarthritis of the hip, knee or ankle? What strengths and weaknesses of the studies attempted to determine if the link between long-distance running and osteoarthritis of the hip, knee or ankle joints.   Method Search of the literature was performed in PubMed, CINAHL, Cochrane Library, and PEDro. This resulted in ten articles that were included for further review and compilation. Based on the articles combined probative value was scored and graded articles for level of evidence according to the National Council on Technology Evaluation (SBU) examination templates for cohort studies with control groups.   Results Only one of the ten studies showed a positive association between long distance running and osteoarthritis of the hip, knee or ankle joints, in this case hip joint. The studies have not a clear and common definition of what long-distance running is. The studies reviewed use different metrics to assess joint degeneration, both by self-report and of different diagnostic criteria for osteoarthritis. All studies have an element of selection bias.   Conclusion An indication that there is no scientific evidence that long-distance running gives hip, knee or ankle osteoarthritis in humans. The studies were inadequate handling of confounders and selection bias and judged to be of low or medium quality.
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Harrison, Kathryn. "THE INFLUENCE OF TRAINING ON KINEMATICS RELATED TO KNEE INJURY IN NOVICE RUNNERS." VCU Scholars Compass, 2019. https://scholarscompass.vcu.edu/etd/6076.

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Running is known to provide important health benefits. However, the incidence of injury among runners is high, particularly among novice runners, which discourages long term participation in the sport. The knee is the most commonly injured joint in novice runners. In general, aberrant frontal and transverse plane kinematics are associated with the development of knee injuries in runners. It was unknown whether the high rate of knee injury in novice runners was due to abnormal kinematics. Further, it was unclear whether these risk factors for injury could be improved. This dissertation includes four studies investigating kinematics in novice runners, how they change with training and evaluation of a running assessment. The first study compared frontal and transverse plane kinematics of female novice and experienced runners. Novice runners displayed more knee kinematics associated with injury than experienced runners, which may contribute to their higher risk of injury. The second study investigated the effects of two different training programs on kinematics of novice runners: one program consisted of 8 weeks of walking followed by 8 weeks of running, the other consisted of 8 weeks of strength/plyometric training followed by 8 weeks of running. Results demonstrated that training produced small changes in kinematics, however all types of training produced a mix of beneficial and detrimental effects. Participants who completed the study displayed better knee kinematics 8 than those who dropped out, which may have influenced their ability to complete the program. The third study sought to investigate changes in coordination of the hip and ankle joints, and their contributions to knee joint angles thought to contribute to injury. Results demonstrated that both the hip and the ankle may influence changes in knee kinematics, however the relative motion of the hip and the ankle appears to remain stable with training. In the final study, we investigated the reliability and validity of the Running Readiness Scale (RRS), as a low cost assessment of kinematics related to injury in runners. The RRS demonstrated good inter and intra rater reliability. Further, the RRS appeared to effectively discriminate between runners according to knee abduction, but not knee internal rotation.
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Uygur, Mehmet. "Kinematics and kinetics of unanticipated misstep conditions in gait implications for femoral fractures in the elderly /." Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file, 71 p, 2008. http://proquest.umi.com/pqdweb?did=1605148261&sid=4&Fmt=2&clientId=8331&RQT=309&VName=PQD.

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Chang, Fu-Yuan, and 張福元. "Design and Verification of a Hip Power Sharing and Stance Control Knee Mechanism for Hip-knee-ankle-foot Orthoses." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/26585066565486512153.

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碩士
國立臺灣大學
機械工程學研究所
105
Recently, the number of people who has handicap handbook are growing, most of them are limb disorder. They always have degenerative arthritis, paralysis, and stroke. These diseases make the elders difficult with walking because of the weakness of the quadriceps or dysfunction in the knee joint. The stance control knee orthosis consists of a knee joint and knee lock control mechanism. It can provide the stability while patients sit or walk. It also can reduce the oscillation of body during walking. 　　The purpose of this research is to develop an orthosis with two main functions. One is the knee control mechanism and the other is the power sharing mechanism. Both mechanisms are respectively controlled by a cam and the ratchets. The knee control mechanism provides knee joint stability and the power sharing mechanism transmits the power from hip motor to knee angle help patients sit or stand in sit-to-stand motion. In order to simplify the control strategy, the two cams are controlled by one actuator. This thesis also test the orthosis after manufactured for the feasibility of two mechanisms.
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Chiou, Jiann-Rong, and 邱健容. "Biomechanics of transfer from sitting to standing:effects of limited ankle range on hip and knee joints." Thesis, 1993. http://ndltd.ncl.edu.tw/handle/82197919762529906530.

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碩士
國立成功大學
醫學工程學系
81
The mechanics of the lower limbs were analyzed in 14 young, adult healthy subjects when rising from a seated position by motion analysis system and force plateforms. Limbs mechanics were described in terms of angles and moments at the hip, knee and ankle joints while rising from three seat heights corres- ponding to 80, 100 and 110% of subject's knee joint height, and under condition of ankle constrained. An analysis of variance with repeated measures showed the following results: 1) wether the ankle joints were constrained or not, the peak angle value of three joints decreased with increasing chair height. 2) there was significant difference in peak angle value of left ankle , both knee and left hip joints, compared between snkle conditions and compared among chair height (P<0.05). 3) there was signifi- cant difference in peak moment of left knee joint, when rising from the chair with 80 and 110% of subject's knee joint height (P<0.05). 4) the difference between two peak moments of left hip joint when rising from three kinds of chair and compared between ankle conditions had significant finding (P<0.05). The study implies that the height of chair and range of ankle joint have influences on the lower limbs when rising from the chair, so we should keep the angle of ankle joint as complete as possible and we should suggest the patient with limited range of ankle joints sitting on the higher chair to prevent the heavier load on the limbs.
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Shin, Gwanseob. "The effects of sloped ground on the hip, knee, and ankle joint kinetics and kinematics during manual lifting tasks." 2002. http://www.lib.ncsu.edu/theses/available/etd-08132002-221151/unrestricted/etd.pdf.

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Botes, Jacques Andre. "The effect of four different manipulative techniques on Iliotibial Band Friction Syndrome (ITBFS) in terms of primary and secondary outcome measures." Thesis, 2016. http://hdl.handle.net/10321/1626.

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Submitted in partial compliance with the requirements for the Master’s Degree in Technology: Chiropractic, Durban University of Technology, Durban, South Africa, 2016.
Background: Iliotibial band friction syndrome is a common dysfunction seen in athletes. Athletes develop biomechanical changes yet still continue with their sport. However, this syndrome limits their ability to participate at peak performance. This study determined which participants benefitted in terms of biomechanical and clinical outcomes in one of four groups: ankle joint, superior tibio-fibular joint, sacroiliac joint or a combination manipulation group (which contained any two of the three joint restrictions). Methods: This Durban University of Technology Institutional Research and Ethics Committee approved prospective clinical trial, utilised stratified sampling, with 48 participants across four groups: ankle (14); superior tibio-fibular (11), sacroiliac (12) and combination (11). The participants underwent six treatments in three weeks. Data collection occurred before consultations one, three, five and seven. The data included primary measures of the knee score questionnaire (KSQ), the algometer, the visual analogue scale (VAS) and the secondary measures of the Feiss line, the heel leg alignment, bilateral leg length, Q angle and tibio-femoral angle. All data was computed utilising the ANOVA testing, with a p-value <0.05 being significant and a 95% confidence interval. Pearson’s correlations were completed for intragroup associations between primary and secondary outcome measures. Results: The intragroup analysis revealed that all groups had significant changes in the KSQ and VAS, with the exception of the sacroiliac joint manipulation group (KSQ outcome not significant). Intergroup analysis revealed no differences between the groups with the exception of the combination group, which showed a significant increase in the tibio-femoral angle. Most commonly, the Pearson’s correlation revealed that changes in leg length were related to differences in primary outcome measures, irrespective of the group being tested. Conclusion: The outcomes of this study indicated that manipulation of the distal kinematic chain improved alignment and clinical outcomes to a greater degree than manipulating proximal restrictions. It is suggested with caution (due to limited sample size) that patients should first have their distal kinematic chain manipulated before more proximal joints are manipulated to achieve better outcomes.
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Books on the topic "Hip-knee-ankle angle"

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Diseases of the Hip, Knee, and Ankle Joints. Jeremy Norman Co, 1991.

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Cooke, Paul H., and Andy Goldberg. Ankle and hindfoot arthritis. Oxford University Press, 2011. http://dx.doi.org/10.1093/med/9780199550647.003.009001.

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♦ Hind foot arthritis is usually treated orthotically but may need surgical fusion♦ Severe ankle arthritis requiring surgical intervention is uncommon♦ Arthroscopic debridement of early ankle arthritis is effective♦ End stage ankle arthritis can be treated by fusion or arthroplasty♦ Ankle replacement has a higher failure rate than hip or knee arthroplasty♦ Correct alignment of the hind foot and forefoot are essential for good results.
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Dallimore, Jon, Jules Blackham, Jon Dallimore, Carey M. McClellan, Harvey Pynn, James Calder, and James Watson. Treatment: limbs and back. Oxford University Press, 2015. http://dx.doi.org/10.1093/med/9780199688418.003.0014.

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Limb injuries - Fractures - Dislocations - Shoulder and upper arm injuries - Elbow and forearm injuries - Wrist injuries - Hand injuries - Finger injuries - Nail injuries - Pelvic and hip injuries - Knee injuries - Lower leg injuries - Achilles tendon disorders - Ankle injuries - Foot fractures and dislocations - Spinal injury - Low back pain - Physiotherapy
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Dallimore, Jon, Jules Blackham, Jon Dallimore, Carey M. McClellan, Harvey Pynn, James Calder, and James Watson. Treatment: limbs and back. Oxford University Press, 2018. http://dx.doi.org/10.1093/med/9780199688418.003.0014_update_001.

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Limb injuries - Fractures - Dislocations - Shoulder and upper arm injuries - Elbow and forearm injuries - Wrist injuries - Hand injuries - Finger injuries - Nail injuries - Pelvic and hip injuries - Knee injuries - Lower leg injuries - Achilles tendon disorders - Ankle injuries - Foot fractures and dislocations - Spinal injury - Low back pain - Physiotherapy
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Slynarski, Konrad, and Mats Brittberg. Lower Extremity Joint Preservation: Techniques for Treating the Hip, Knee, and Ankle. Springer International Publishing AG, 2022.

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Slynarski, Konrad, and Mats Brittberg. Lower Extremity Joint Preservation: Techniques for Treating the Hip, Knee, and Ankle. Springer International Publishing AG, 2020.

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Foster, Brogan, and Paul A. Brogan. Common and important clinical problems. Oxford University Press, 2018. http://dx.doi.org/10.1093/med/9780198738756.003.0002.

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This chapter covers the ‘red flag’ conditions including non-accidental injury (NAI), malignancy, and infection in the context of musculoskeletal presentations. There are sections on infection in the immunocompromised (and also in low resource income countries), pain syndromes and pyrexia of unknown origin (PUO), growing pains, limp, and region by region descriptions of common and important musculoskeletal problems (scoliosis, back, hip, knee, foot, and ankle) and hypermobility.
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Griffiths, Richard, and Ralph Leighton. Orthopaedic surgery. Oxford University Press, 2016. http://dx.doi.org/10.1093/med/9780198719410.003.0018.

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This chapter discusses the anaesthetic management of orthopaedic surgery. It begins with general principles of the anaesthetic management of orthopaedic surgical patients, including the management of fat embolism syndrome, bone cement implantation syndrome, compartment syndrome, and the use of tourniquets. Surgical procedures covered include total hip joint replacement (including revision total hip joint replacement), femoral neck fracture surgery, total knee joint replacement, arthroscopy, cruciate ligament repair, ankle surgery, foot surgery, spinal surgery (including the cervical spine), shoulder surgery (including total shoulder joint replacement), elbow replacement surgery, hand surgery, and trauma, including fractures of limbs or spine.
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Griffiths, Richard, and Ralph Leighton. Orthopaedic surgery. Oxford University Press, 2018. http://dx.doi.org/10.1093/med/9780198719410.003.0018_update_001.

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This chapter discusses the anaesthetic management of orthopaedic surgery. It begins with general principles of the anaesthetic management of orthopaedic surgical patients, including the management of fat embolism syndrome, bone cement implantation syndrome, compartment syndrome, and the use of tourniquets. Surgical procedures covered include total hip joint replacement (including revision total hip joint replacement), femoral neck fracture surgery, total knee joint replacement, arthroscopy, cruciate ligament repair, ankle surgery, foot surgery, spinal surgery (including the cervical spine), shoulder surgery (including total shoulder joint replacement), elbow replacement surgery, hand surgery, and trauma, including fractures of limbs or spine.
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Werner, Brian C. MRI-Arthroscopy Correlations: A Case-Based Atlas of the Knee, Shoulder, Elbow, Hip and Ankle. Springer International Publishing AG, 2022.

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Book chapters on the topic "Hip-knee-ankle angle"

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Allen, Gina M., and Jon A. Jacobson. "Ultrasonography: Sports Injuries." In IDKD Springer Series, 229–45. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-71281-5_16.

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AbstractUltrasonography is a valuable imaging method to evaluate for sports injuries. In the upper extremity, rotator cuff evaluation is most common. Other applications include examination of the biceps and subacromial-subdeltoid bursa in the shoulder, biceps, triceps, common extensor tendon and ulnar collateral ligament in the elbow and tendon tear, pulley injury and skier’s thumb in the wrist and hand. In the lower extremity, ankle sprains, muscle injury and groin pain are the most common problems benefiting from imaging, and ultrasound plays a vital role. Tendinopathy, tendon injury and ligament injury are well visualised in the hip, knee, ankle and foot by diagnostic ultrasound.
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Sanford, Brooke A., John L. Williams, Audrey R. Zucker-Levin, and William M. Mihalko. "Hip, Knee, and Ankle Joint Forces in Healthy Weight, Overweight, and Obese Individuals During Walking." In Computational Biomechanics for Medicine, 101–11. New York, NY: Springer New York, 2014. http://dx.doi.org/10.1007/978-1-4939-0745-8_8.

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Mohabbat, Arya B., and Christopher M. Wittich. "Musculoskeletal Disorders." In Mayo Clinic Internal Medicine Board Review, edited by Christopher M. Wittich, Thomas J. Beckman, Sara L. Bonnes, Nina M. Schwenk, Jason H. Szostek, Nerissa M. Collins, and Christopher R. Stephenson, 873–88. 12th ed. Oxford University PressNew York, 2019. http://dx.doi.org/10.1093/med/9780190938369.003.0081.

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Sharma, Raju, Akhoury Sinha, and Subrat Tripathy. "Hip Knee Ankle Foot Orthoses." In Orthoses, Prostheses and Assistive Devices for Physiotherapists, 155. Jaypee Brothers Medical Publishers (P) Ltd., 2012. http://dx.doi.org/10.5005/jp/books/11658_9.

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Simon, Chantal, Hazel Everitt, Françoise van Dorp, and Matt Burkes. "Musculoskeletal problems." In Oxford Handbook of General Practice, 471–532. Oxford University Press, 2014. http://dx.doi.org/10.1093/med/9780199671038.003.0015.

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Symptoms of musculoskeletal disease Neck pain Low back pain Shoulder problems Elbow problems Wrist and hand problems Hip and pelvis problems Knee problems Ankle and foot problems Sports medicine Management of sporting injuries Bone disorders Rickets and osteomalacia Osteoporosis Treatment options for osteoporosis Osteoarthritis Rheumatoid arthritis...
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Hakim, Alan J., Gavin P. R. Clunie, and Inam Haq. "Corticosteroid injection therapy." In Oxford Handbook of Rheumatology, 589–98. Oxford University Press, 2011. http://dx.doi.org/10.1093/med/9780199587186.003.0022.

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Introduction 590 Principles of injection techniques 592 The shoulder 593 The elbow 594 The wrist and hand 595 The hip and peri-articular lesions 596 The knee and peri-articular lesions 597 The ankle and foot 598 Anatomical drawings for each region of the body are found in ...
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Chauhan, Aarti, and Jitendra Kumar. "Analysis of Kinematics of a 12-DOF Biped Robot Gait by Parametrization of Its Body Trajectories." In Advances in Transdisciplinary Engineering. IOS Press, 2023. http://dx.doi.org/10.3233/atde221244.

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This paper focuses on modeling forward and inverse kinematics of a 12-DOF bipedal robot and parametrizing its body trajectory to generate different gaits on 3D terrain.The 12-DOF kinematic chain represents the lower body part of the humanoid robot. The Cartesian coordinate is assigned to each link of the biped robot using the Denavit-Hartenberg (DH) convention. One step of the bipedal walk is divided into three walk phases depending on whether one foot or both feet are in contact with the ground.Time parameterized cubic splines construct the biped robot’s mid-hip and swinging foot trajectory.The inverse kinematic determines the values of the joint angles corresponding to hip and swinging foot frame trajectory using the geometric relation between foot ankle point, knee position,and hip position. The complete one-step gait of the biped robot is represented in the form of a stick diagram.The proposed method is a geometrical approach to parameterize the gait of a biped robot for one step of the walk in terms of hip and swinging foot trajectory optimization is required to determine energy optimal balanced gait, which we envisage as our future task.
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Pickering, Robert M. "Arthrodesis of the Ankle, Knee, and Hip." In Campbell's Operative Orthopaedics, 163–207. Elsevier, 2008. http://dx.doi.org/10.1016/b978-0-323-03329-9.50006-4.

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Meadows, Barry, and Roy Bowers. "Biomechanics of the Hip, Knee, and Ankle." In Atlas of Orthoses and Assistive Devices, 207–15. Elsevier, 2019. http://dx.doi.org/10.1016/b978-0-323-48323-0.00018-4.

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Simon, Chantal, Hazel Everitt, Françoise van Dorp, Nazia Hussain, Emma Nash, and Danielle Peet. "Musculoskeletal problems." In Oxford Handbook of General Practice, 445–506. Oxford University Press, 2020. http://dx.doi.org/10.1093/med/9780198808183.003.0014.

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This chapter in the Oxford Handbook of General Practice explores musculoskeletal problems encountered in general practice. It covers symptoms of musculoskeletal disease, neck and low back pain, and problems with the shoulder, elbow, wrist, hand, hip, knee, ankle, and foot. It explores sports medicine and the management of sporting injuries. It examines bone disorders, rickets, osteomalacia, osteoporosis, osteoarthritis, rheumatoid arthritis, spondyloarthropathies, and crystal-induced arthritis. It also discusses connective tissue disease, polymyalgia and giant cell arteritis, tiredness, and chronic fatigue syndrome.
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Conference papers on the topic "Hip-knee-ankle angle"

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Sun, Tongyang, Qihong Liu, Weiguang Li, Zhijiang Lu, Haoqiu Chen, Pengfang Chen, Zhixiang Lu, et al. "Hip, knee and ankle motion angle detection based on inertial sensor." In 2016 IEEE International Conference on Information and Automation (ICIA). IEEE, 2016. http://dx.doi.org/10.1109/icinfa.2016.7832076.

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Fan, Jizhuang, Gangfeng Liu, Huan Wang, Wei Zhang, and Yanhe Zhu. "Design and Control of a Frog-Inspired Swimming Leg Powered by Pneumatic Muscle." In ASME 2016 Conference on Information Storage and Processing Systems. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/isps2016-9532.

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According to the shortages of previous generation of frog inspired robot, antagonistic joint based frog inspired leg was designed. With the multi-DOFs of hip, knee and ankle, the designed leg was able to perform various frog swimming modes. The dynamic model of antagonistic joint based on advanced pneumatic muscle model was established in MATLAB/Simulink environment. Besides, the servo control strategy of joint angle was studied based on the dynamic model of antagonistic joint. The PID and self-tuning fuzzy control were utilized to control the antagonistic joint. According to different swimming modes, joint trajectories of hip, knee and ankle were created by inverse kinematics based on the frog swimming mechanism. Therefore, the leg was controlled by the separated controls of hip, knee and ankle joints. Feasibility of pneumatic antagonistic joint control was validated via step response experiments with different loads. Finally, the experiment platform was established to carry swimming experiments with the developed frog-inspired swimming leg. The feasibility of antagonistic frog inspired swimming leg driven by pneumatic muscles was validated.
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"Deep Learning Method for Hip Knee Ankle Angle Prediction on Postoperative Full-Limb Radiographs of Total Knee Arthroplasty Patients." In 2022 44th Annual International Conference of the IEEE Engineering in Medicine & Biology Society (EMBC). IEEE, 2022. http://dx.doi.org/10.1109/embc48229.2022.9870936.

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Tung, Wayne, H. Kazerooni, Dong Jin Hyun, and Stephan McKinley. "On the Design and Control of Exoskeleton Knee." In ASME 2013 Dynamic Systems and Control Conference. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/dscc2013-4035.

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This paper describes a lightweight (2.7 pounds) exoskeleton orthotics knee which provides controllable resisting torque. In particular, exoskeleton knee uses friction forces between two surfaces to provide resistive torque and impede knee flexion. Creating an impeding torque at the exoskeleton knee will decrease the torque that needs to be provided by the wearer at his/her knee during flexion. The required external power (from batteries) to provide the controllable resistive torque is minimal in comparison to the dissipated locomotion power since the resistive torque generation is “self-energizing” and is using the energy of the knee itself for braking. The exoskeleton knee uses the absolute angle of the thigh for basic functionality; no other measurements such as ground reaction force or the knee joint angle are necessary for basic performance. This allows the exoskeleton knee to be worn not only independently on the wearer’s knee but also in conjunction with hip, ankle or foot exoskeletons. This gives a great deal of flexibility for use of exoskeleton knees in variety of medical, civilian and military applications.
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HosseinNia, S. Hassan, Francisco Romero, Blas M. Vinagre, Francisco Javier Alonso, Ines Tejado, and Josep M. Font-Llagunes. "Hybrid Modeling and Fractional Control of a SCKAFO Orthosis for Gait Assistance." In ASME 2011 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/detc2011-48175.

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SCKAFO, stance-control knee-ankle-foot orthosis, is a type of orthosis that permits free knee motion during swing while resisting knee flexion during stance, supporting thereby the limb during weight bearing. This orthosis specially assists patients who have incomplete spinal cord injury and allows them to walk with the aid of canes or crutches, maintaining a proper gait. In this paper, based on the human walking biomechanics, the SCKAFO hybrid modeling is proposed, which consists of eight different stages whose evolution is given by means of four planar sensors on each foot. In the model, it is considered that the patients can move their hip but not their knee that will be controlled using a DC motor. Two fractional order controllers are designed, following decision based control techniques, to control the knee angle. Simulation results are given in order to demonstrate the efficiency of the system performance.
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Tanaka, Martin L., Premkumar Subbukutti, David Hudson, Kimberly Hudson, Pablo Valenzuela, and Paul Yanik. "Quantifying the Accuracy of a Motion Detecting Neural Prosthesis." In ASME 2020 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/imece2020-23219.

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Abstract The neural prosthesis under development is designed to improve gait in people with muscle weakness. The strategy is to augment impaired or damaged neural connections between the brain and the muscles that control walking. This third-generation neural prosthesis contains triaxial inertial measurement units (IMUs - accelerometers, gyroscopes, and processing chip) to measure body segment position and force sensitive resistors placed under the feet to detect ground contact. A study was conducted to compare the accuracy of the neural prosthesis using a traditional camera motion capture system as a reference. The IMUs were found to accurately represent the amplitude of the gait cycle components and generally track the motion. However, there are some differences in phase, with the IMUs lagging the actual motion. Phase lagged by about 10 degrees in the ankle and by about 5 degrees in the knee. Error of the neural prosthesis varied over the gait cycle. The average error for the ankle, knee and hip were 6°, 8°, and 9°, respectively. Testing showed that the neural prosthesis was able to capture the general shape of the joint angle curves when compared to a commercial camera motion capture system. In the future, measures will be taken to reduce lag in the gyroscope and reduce jitter in the accelerometer so that data from both sensors can be combination to obtain more accurate readings.
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Zou, Qiuling, and Jingzhou James Yang. "Pseudo Standing, Forward Falling, and Pulling Simulation for Pregnant Women." In ASME 2011 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/detc2011-48654.

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This paper presents an optimization-based dynamic simulation for pregnant women pseudo standing, forward falling, and pulling tasks. Based on anatomy of pregnant women a digital pregnant woman model is developed. The model has 55 degrees of freedom (DOFs) including 6 global DOFs and 49 body DOFs. Recursive dynamic algorithm is used to formulate the equations of motion. Human motion can be formulated as a non-linear optimization problem. Control points of B-spline curves that represent joint angle profiles are design variables. The joint angles, angular velocities and angular accelerations, will be obtained from the control points. The summation of all joint actuator torque square acts as the objective function. Besides some common constraints, different constraints are adopted for standing, falling, and pulling, respectively. Three cases, non-pregnancy, 6-month, and 9-month pregnancy, are investigated. For the pulling task, 2N, 100N or 200N external load is applied as the pulling force. Determinant joints (hip, knee and ankle) are plotted to analyze the simulation results. The simulation results show the effects of pregnancy on human movement kinematics and dynamics. The average computational time for each case is close to 3.5 minutes in a Dell computer with 3.25 GB of RAM and 3.16 GHz.
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Cherry, Michael S., Sridhar Kota, and Daniel P. Ferris. "An Elastic Exoskeleton for Assisting Human Running." In ASME 2009 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2009. http://dx.doi.org/10.1115/detc2009-87355.

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This paper presents the design and preliminary evaluation of an elastic lower-body exoskeleton (eExo). Human legs behave in a spring-like fashion while running. We selected a design that relied solely on material elasticity to store and release energy during the stance phase of running. The exoskeleton included a novel knee joint with a cam and a Bowden cable transferring energy to and from a waist-mounted extension spring. We used a friction-lock clutch controlled by hip angle via a pneumatic cylinder to release the cable during swing phase for free movement of the leg. The design also incorporated a composite leaf spring to store and release energy in the distal portion of the exoskeleton about the foot and ankle. Preliminary test data for our target subject showed that his typical leg deflection was 0.11 m with leg stiffness of 16 kN/m while running at 3.0 m/s. We used these values to set the desired stiffness (60±15% of the normal leg stiffness, or 9.6±2.4 kN/m) and deflection (0.11 m) of the exoskeleton. We created simplified multi-body and full finite element quasi-static models to achieve the desired system stiffness and validate our results, respectively. The final design model had an overall stiffness of 7.3 kN/m, which was within the desired range. We fabricated a single-leg prototype of the exo–skeleton that weighed 7.1 kg. We tested the exoskeleton stiffness quasi-statically and found a stiffness of 3.6 kN/m. While running, the exoskeleton provided ∼30% of the total leg stiffness for two subjects. Although the stiffness was lower than desired, the fabricated prototype demonstrated the ability of a quasi-passive exoskeleton to provide a significant portion of an individual’s leg stiffness while running.
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Maletsky, Lorin P., and Ben M. Hillberry. "Dynamic Control of a Four-Axis, Electrohydraulic Knee Simulator." In ASME 1997 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 1997. http://dx.doi.org/10.1115/imece1997-0428.

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Abstract Joint simulators have been used frequently to generate meaningful data on prosthetic wear, bone kinematics, and ligament function. The complex and high loads associated with the knee joint have prompted the development of a wide variety of knee simulators. A four-axis knee simulator was developed at Purdue University that simulates the tibio-femoral and patello-femoral forces by four externally applied loads at the hip and ankle at the hip and ankle. The Purdue Knee Simulator has repeatedly demonstrated the ability to generate realistic prosthetic wear and kinematic motions similar to the natural knee. The operation of the Purdue Knee Simulator, the generation of input profiles, and a brief review of some of the research completed utilizing this machine is presented.
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Belwadi, Aditya, Suresh Mahi, King H. Yang, Tim Darling, and Bob Burt. "Evaluation of Ligamentous Stresses in the Lower Leg Subjected to Shear, Rotation and Kick Out Commonly Seen in Dynamic Athletic Maneuvers." In ASME 2012 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/imece2012-87641.

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Lower leg ligamentous injuries are the most commonly seen injuries in sports involving complex dynamic maneuvers. These injuries are not always accompanied by bone trauma and can severely impair the skills of the player. Cleats, which commonly form part of sportsperson’s footwear, can greatly affect the stresses generated in the ligaments of the ankle, knee and hip. Literature data has shown that effectively controlling the traction between the shoe and field surface plays a key role in the forces transmitted via the athlete’s lower leg. The objective of the current study was to study the effect of modifying the cleat design on the ligamentous stresses in the ankle, knee and hip joint using field test data. The study utilized a Finite Element Lower Leg Model of a 50th percentile adult male (Wayne State Lower Leg Human Model) with appropriate boundary conditions simulating three different foot strikes commonly seen in field sports, i.e. shear, rotation and kick out. A comparison was drawn between two different cleat designs based on field test data to investigate stresses induced in the hip, knee and ankle joint ligaments of the human leg.
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