Search for dissertations about: "Sprint"

Showing result 1 - 5 of 21 swedish dissertations containing the word Sprint.

2. 1. Athletic Sprint Start Biomechanics : Investigations into the relationships between three dimensional starting technique, first step width and performance

   Author : Paul Nicolas Sandamas; Anton Arndt; Elena M. Gutierrez-Farewik; Aki Salo; Gymnastik- och idrottshögskolan; []
   Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; sprint start; step width; biomechanics; performance; angular momentum; Medicin Teknik; Medicine Technology;

   Abstract : The block and early acceleration phase plays a very important role in the overall outcome of athletic sprint events. During this part of the race it is commonly observed that sprinters use a lower-body technique that involves the swing leg crossing medially in front of the athlete followed by wide steps. READ MORE

4. 2. Human muscle response to sprint exercise in a gender perspective

   Author : Mona Esbjörnsson Liljedahl; Karolinska Institutet; Karolinska Institutet; []
   Keywords : Anaerobic; Performance; Wingate-test; muscle biopsy; Adenine nucleotides; hormones; glycogen; type I fibres; type II fibres; fast twitch; slow twitch; muscle morphology; men; women; sprint training;

   Abstract : Anaerobic performance, muscle characteristics and acute and chronic response to sprint exercise were studied in physically active healthy women (n=35; age 24) and men (n=38; age 25). The aims of the present study were to: 1) Establish if women possess lower oxidative and glycolytic capacity, higher proportion of type I fibres and smaller type II fibre areas in relation to type I fibre areas in thigh musculature than men. READ MORE

5. 3. Physiological demands of competitive elite cross-country skiing

   Author : Magnus Carlsson; Michail Tonkonogi; Christer Malm; Eva Andersson; Högskolan Dalarna; []
   Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Performance capability; maximal oxygen uptake; lactate threshold; lean mass; double poling; power output; maximal speed; sprint skiing; distance skiing.; Hälsa och välfärd; Health and Welfare;

   Abstract : Introduction Researchers have, for decades, contributed to an increased collective understanding of the physiological demands in cross-country skiing; however, almost all of these studies have used either non-elite subjects and/or performances that emulate cross-country skiing. To establish the physiological demands of cross-country skiing, it is important to relate the investigated physiological variables to the competitive performance of elite skiers. READ MORE

6. 4. The importance of body-mass exponent optimization for evaluation of performance capability in cross-country skiing

   Author : Tomas Carlsson; Michail Tonkonogi; Christer Malm; Klavs Madsen; Högskolan Dalarna; []
   Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; allometric scaling; power-function modelling; maximal oxygen uptake; body mass; elite skiers; distance skiing; lactate threshold; double poling; sprint skiing; competition; power output; time trial; Hälsa och välfärd; Health and Welfare;

   Abstract : Introduction Performance in cross-country skiing is influenced by the skier’s ability to continuously produce propelling forces and force magnitude in relation to the net external forces. A surrogate indicator of the “power supply” in cross-country skiing would be a physiological variable that reflects an important performance-related capability, whereas the body mass itself is an indicator of the “power demand” experienced by the skier. READ MORE

7. 5. Effects of Ageing and Physical Activity on Regulation of Muscle Contraction

   Author : Alexander Cristea; Lars Larsson; Anna-Stina Höglund; Ingrid Lundberg; Uppsala universitet; []
   Keywords : LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; ageing; sarcopenia; sprint training; progressive resistance training; in vivo function; isokinetic dynamometer; in vitro function; single permeabilised fibre; myonuclear domain; confocal microscopy; Medicine; Medicin;

   Abstract : The aims of this study were to investigate the mechanisms underlying (1) the ageing-related motor handicap at the whole muscle, cellular, contractile protein and myonuclear levels; and (2) ageing-related differences in muscle adaptability.In vivo muscles function was studied in the knee extensors. READ MORE