Dissertations / Theses on the topic 'Sprint Phases'
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von, Lieres und Wilkau Hans Christian. "Understanding biomechanical differences in technique between phases of a sprint." Thesis, Cardiff Metropolitan University, 2017. http://hdl.handle.net/10369/9564.
Full textWitmer, Chad A. "Effects of acute exposure to moderate hypoxia during different phases of repeated-sprint cycling on fatigue and anaerobic power reserve." Diss., Temple University Libraries, 2011. http://cdm16002.contentdm.oclc.org/cdm/ref/collection/p245801coll10/id/135073.
Full textPh.D.
The purpose of this study was to investigate the effects of acute moderate hypoxia (14.5% inspired oxygen fraction) on the magnitude of fatigue development during the different phases (work, recovery, and both) of a repeated-sprint test (10 x 6-s sprints interspersed with 30-s recovery) in healthy, trained males. This study also sought to investigate the relationship between anaerobic power reserve and fatigue during the aforementioned repeated-sprint test. Fourteen exercise-trained males completed four trials of the repeated-sprint test under each of the following conditions: (a) normoxia (20.93% inspired oxygen fraction), (b) acute hypoxia during the work intervals only, (c) acute hypoxia during the recovery intervals only, and (d) acute hypoxia during both the work and recovery intervals. The order of the experimental conditions was systematically balanced. Fatigue scores were not different between experimental conditions, despite the fact that arterial oxygen saturation values from the acute hypoxia during recovery condition and the acute hypoxia during both work and recovery condition differed significantly from the normoxia and acute hypoxia during work intervals only conditions (p < .001). There was no relationship between anaerobic power reserve and fatigue in any experimental condition. The results of the present study indicate that although the participants experienced different levels of hypoxia during the experimental trials, the degree of hypoxia was insufficient to alter mechanical performance during a repeated-sprint test. The lack of an effect on mechanical performance does not appear to be influenced by an individual's anaerobic power reserve. It may be inferred that the degree of hypoxia employed was neither severe enough as to impair levels of muscle oxygenation beyond what was experienced in normoxia, nor as to induce further fatigue related to central mechanisms.
Temple University--Theses
Miller, James. "Changes in Sprint Kinematics Between Phase Potentiation and Linear PRogressive Models of Resistance Training." Digital Commons @ East Tennessee State University, 2017. https://dc.etsu.edu/etd/3309.
Full textTsampoukos, Antonis. "Effects of endurance training on performance and metabolism during a repeated treadmill sprint in females." Thesis, Loughborough University, 2003. https://dspace.lboro.ac.uk/2134/14222.
Full textHabib, Perez Olinda D. "An Analysis of Infant Bouncing at Different Spring Frequencies." Thèse, Université d'Ottawa / University of Ottawa, 2011. http://hdl.handle.net/10393/19897.
Full textStepulaitienė, Inga. "Development of sour cherry generative organs and formation of spring frost resistance." Doctoral thesis, Lithuanian Academic Libraries Network (LABT), 2013. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2013~D_20131218_133439-66035.
Full textPaprastoji vyšnia (Prunus cerasus L. (sin. Cerasus vulgaris Mill., Prunus vulgaris Schur)) yra plačiai auginamas kaulavaisinis augalas Lietuvoje. Vyšnių sodo produktyvumas priklauso nuo daugelio tarpusavyje susijusių veiksnių. Oro temperatūra yra vienas svarbiausių vyšnių paplitimą ir jų derlių lemiantis veiksnys. Žinoma, kad neigiamos temperatūros ir pavasario šalnos yra svarbus veiksnys, į kurį reikia atsižvelgti vykdant augalų selekciją. Keičiantis klimatui, didėja ekstremalių temperatūrų ir drėgmės deficito pavojus bei pavasario šalnų rizika (Augspurger, 2013). Augalų reakcija į klimato kaitos pokyčius priklauso nuo augalo rūšies ir veislės bei abiotinių ir biotinių veiksnių. Pastaraisiais metais pavasaris ateina greičiau ir staigiai. Tai paveikia vyšnias – jų vegetacija prasideda anksčiau. Anksti pradėjus vegetuoti išauga tikimybė, kad augalus pažeis pavasario šalnos. Lietuvoje nuostolių padaro vėlyvos pavasario šalnos, kurių metu pažeidžiami žiedai ir vaisių užuomazgos. Tuo metu augalai jau būna išėję iš būtinosios ir priverstinės ramybės ir jautrūs neigiamoms temperatūroms. Tyrimų tikslas buvo įvertinti skirtingo atsparumo šalnoms vyšnios veislių DNR polimorfizmą, fenologinių tarpsnių kaitos pobūdį, atskleisti paprastosios vyšnios atsparumo pavasario šalnoms formavimosi biochemines ypatybes ištiriant bendro angliavandenių kiekio ir jų sudėties kitimą skirtinguose fenologiniuose tarpsniuose esančių augalų generatyviniuose organuose ir vaisių užuomazgose, nustatyti... [toliau žr. visą tekstą]
Castonguay, Samuel. "Structural Evolution of the Virgin Spring Phase of the Amargosa Chaos, Death Valley, California, USA." Thesis, University of Oregon, 2013. http://hdl.handle.net/1794/13418.
Full textSmith, Brice Christopher 1976. "Geometric and elastic properties and mechanical phase separation phenomena in self-assembling mesoscopic helical springs." Thesis, Massachusetts Institute of Technology, 2003. http://hdl.handle.net/1721.1/29610.
Full textIncludes bibliographical references (p. 279-300).
Helical ribbons with pitch angles of either 11⁰ or 54⁰ self-assemble in a wide variety of quaternary surfactant-phospholipid/fatty acid-sterol-water systems. In all of the systems studied, the thermodynamically stable state for the sterol is plate like mono-hydrate crystals. However, the sterol is typically found to pass through a serious of metastable intermediates from filaments to helical ribbons to tubules before reaching the stable crystalline state. In the present work, we chose to focus on helical ribbons formed in the Chemically Defined Lipid Concentrate (CDLC) system. These helices typically have radii on the order of a few to a few tens of microns and lengths on the order of hundreds of microns. By tethering to these mesoscopic helical ribbons using Devcon 5-Minute Epoxy®, we have been able to elastically deform them, and thus examine their response to uniaxial tension. For small deformations, the low pitch helices behave like linear elastic springs with a spring constant for a typical example measured to be (4.80 +/- 0.77) x 10-6 N/m. From the observed spread in helix dimension, our theory predicts a corresponding range of spring constants for the structures of 10-7 to 10-4 N/m allowing, in principle, a great range of forces to be examined. Under larger tensions, both low and high pitch helices have been observed to reversibly separate into a straight domain with a pitch angle of 90Ê» and a helical domain with a pitch angle of (16.5 +/1 1.3)⁰ for the low pitch or (59.6 +/- 1.7)⁰ for the high pitch. Using a newly developed continuum elastic free energy model, we have shown that this phenomena can be understood as a mechanical phase transition of first order.
(cont.) From this analysis, we have also been able to determine all of the parameters within our model, and to show that it is capable of self-consistently and quantitatively explaining all of the observed properties of these self-assembled helices.
by Brice Christopher Smith.
Ph.D.
Alizadeh, Shahab [Verfasser], and Mattes Klaus [Akademischer Betreuer]. "Comparing selected kinematic parameters of the late swing phase during a sprint, isokinetic strength, and flexibility in male soccer players with and without anterior pelvic tilt / Shahab Alizadeh ; Betreuer: Mattes Klaus." Hamburg : Staats- und Universitätsbibliothek Hamburg, 2019. http://d-nb.info/1183262361/34.
Full textParikka, Kaarle Joonas. "Exploration des communautés virales thermophiles dans les écosystèmes chauds des terres australes et antarctiques françaises." Thesis, Brest, 2013. http://www.theses.fr/2013BRES0066/document.
Full textViruses thrive in all types of ecosystems where life is found. They represent the most abundant biological entity of our biosphere. Though several studies have been conducted on viral abundance and dynamics in mesophilic aquatic ecosystems, these aspects remain largely unexplored in extremophilic environments, such as hot springs. In this study, prokaryotic and associated viral communities of the French Southern and Antarctic Lands hot springs were explored. First, prokaryotic cells and Virus-like particles (VLP) were enumerated in several terrestrial and inshore hot springs. The results reveal an abundance of 105 - 106 particles/ml in both types of hot springs studied. The virus-to-prokaryote ratios (VPR) were generally low, confirming thus actual knowledge in these types of ecosystems. The morphological diversity of VLP was then studied in raw samples as well as in enrichment cultures containing Thermococcales and Thermotogales. Several isolates obtained from these samples were then screened for viral particles which led to the discovery and description of a temperate phage (GTV1) of a thermophilic bacterium belonging to the genus Geobacillus. The effect of NaCl and anoxic stress on the viral production was studied. The genomic characterization of the GTV1 was started and revealed a 38441 bp genome with 71 predicted ORF. Finally, microbial diversity studies led also to the discovery of a new extremely thermophilic bacterium, Calditerricola clavaformis sp.nov
Maulder, Peter Scott. "The physical power pre-requisites and acute effects of resisted sled loading on sprint running kinematics of the early acceleration phase from starting blocks this thesis is presented in partial fulfillment of the requirements for the Master of Health Science degree at Auckland University of Technology, January 31st 2005 /." Full thesis. Abstract, 2005. http://puka2.aut.ac.nz/ait/theses/MaulderP.pdf.
Full textSupervisors: Mr Justin W L Keogh, Dr Elizabeth J Bradshaw. Also held in print (143 leaves, col. ill. 30 cm.) in Akoranga Theses Collection (T 612.76 MAU)
Brombacher, Christoph. "Rapid thermal annealing of FePt and FePt/Cu thin films." Doctoral thesis, Universitätsbibliothek Chemnitz, 2011. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-qucosa-64907.
Full textKrishnan, Vinu Bala. "DESIGN, FABRICATION AND TESTING OF A SHAPE MEMORY ALLOY BASED CRYOGENIC THERMAL CONDUCTION SWITCH." Master's thesis, University of Central Florida, 2004. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/4404.
Full textM.S.
Department of Mechanical, Materials and Aerospace Engineering
Engineering and Computer Science
Mechanical, Materials and Aerospace Engineering
Trachtová, Štěpánka. "Studium reverzibilní adsorpce nukleových kyselin na pevných nosičích." Doctoral thesis, Vysoké učení technické v Brně. Fakulta chemická, 2011. http://www.nusl.cz/ntk/nusl-233338.
Full textRudolf, Ladislav. "Použití bezkartáčového stejnosměrného motoru pro pohon lineárního servopohonu s bezpečnostní funkcí." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2012. http://www.nusl.cz/ntk/nusl-219451.
Full textShoa, Tina. "Micro-spring supported membrane for reconfigurable microstrip phase shifter." 2004. http://hdl.handle.net/1993/15761.
Full textChan, Kuo-Chin, and 詹國琴. "Robustness Analysis on Minimum Phase Property of Mass-Dashpot-Spring Systems." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/72287167759897239889.
Full text國立成功大學
工程科學系碩博士班
93
The mass-dashpot-spring models of mechanical and structural systems are introduced in this work. It is aimed to investigate the transmission zeros distribution, the minimum phase property and minimum phase robustness for a mass-dashpot-spring system. By virtue of an appropriate nonlinear mapping and the root-locus technique, it is verified that the transmission zeros interlace with poles on a specific circle and the nonpositive real axis segments of the s-plane for a mass-dashpot-spring system with proportional damping and B=CTΓ. In literature, a continuous-time mass-dashpot-spring system with B=CTΓ was shown to be minimum phase. It is worthy to investigate whether the corresponding sampled-data system still exhibits minimum phase property. In this work, the sampled system of a modal damping mass-dashpot-spring structural dynamics with sufficient condition B=CTΓ is verified to be minimum phase. Notably, this property is independent of the sampling period. In addition, it is desirable to know how robustly an uncertain mass-dashpot-spring system maintains the minimum phase property. To this end, the allowable margin of perturbations is derived to guarantee minimum phase property of the uncertain system. For the sake of obtaining less conservative results, the perturbation matrix with a minimal dimension is directly derived on the basis of a second-order dynamical equation. At last, the uncertainties margin for a state-space system with affine parametric uncertainties is determined. The minimum phase property of the uncertain system is guaranteed within the uncertainties margin. Based on the linear fractional transformation, the matrix sizes involved in the computation of structured singular value are significantly reduced to improve computational burden.
Garrett, A. T., E. Dodd, V. Biddlecombe, D. Gleadall-Siddall, R. Burke, J. Shaw, J. Bray, Huw S. Jones, G. Abt, and J. Gritt. "Effectiveness of short term heat acclimation on intermittent sprint performance with moderately trained females controlling for menstrual cycle phase." 2019. http://hdl.handle.net/10454/17795.
Full textIntroduction: Investigate the effectiveness of short-term heat acclimation (STHA), over 5-days (permissive dehydration), on an intermittent sprint exercise protocol (HST) with females. Controlling for menstrual cycle phase. Materials and Methods: Ten, moderately trained, females (Mean [SD]; age 22.6 [2.7] y; stature 165.3 [6.2] cm; body mass 61.5 [8.7] kg; VO˙ 2 peak 43.9 [8.6] mL·kg−1 ·min−1 ) participated. The HST (31.0◦C; 50%RH) was 9 × 5 min (45-min) of intermittent exercise, based on exercise intensities of female soccer players, using a motorized treadmill and Wattbike. Participants completed HST1 vs. HST2 as a control (C) trial. Followed by 90 min, STHA (no fluid intake), for five consecutive days in 39.5◦C; 60%RH, using controlled-hyperthermia (∼rectal temperature [Tre] 38.5◦C). The HST3 occurred within 1 week after STHA. The HST2 vs HST3 trials were in the luteal phase, using self-reported menstrual questionnaire and plasma 17β-estradiol. Results: Pre (HST2) vs post (HST3) STHA there was a reduction at 45-min in Tre by 0.20◦C (95%CI −0.30 to −0.10◦C; d = 0.77); Tsk (−0.50; −0.90 to −0.10◦C; d = 0.80); and Tb (−0.25; −0.35 to −0.15◦C; d = 0.92). Cardiac frequency reduced at 45-min (−8; −16 to −1 b·min−1 ; d = 1.11) and %PV increased (7.0; −0.4 to 14.5%: d = 1.27). Mean power output increased across all nine maximal sprints by 56W (−26 to 139W; d = 0.69; n = 9). There was limited difference (P > 0.05) for these measures in HST1 vs HST2 C trial. Discussion: Short-term heat acclimation (5-days) using controlled-hyperthermia, leads to physiological adaptation during intermittent exercise in the heat, in moderately trained females when controlling for menstrual cycle phase.
Voss, Rüdiger [Verfasser]. "Recruitment processes in the larval phase : the influence of varying transport on cod and sprat larval survival / vorgelegt von Rüdiger Voss." 2002. http://d-nb.info/972280898/34.
Full textBrombacher, Christoph. "Rapid thermal annealing of FePt and FePt/Cu thin films." Doctoral thesis, 2010. https://monarch.qucosa.de/id/qucosa%3A19459.
Full text