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Kinematic Changes During A Marathon For Fast And Slow Runners, Maggie Man-Yee Chan-Roper
Kinematic Changes During A Marathon For Fast And Slow Runners, Maggie Man-Yee Chan-Roper
Theses and Dissertations
The purpose of this study was to describe kinematic changes that occur during an actual marathon. We hypothesized that (1) certain running kinematic measures would change between miles 5 and 25 of a marathon and (2) fast runners would demonstrate smaller changes than slow runners. Subjects (n = 179) were selected according to finish time (Range = 2:20:47 to 5:30:10). Two high-speed cameras were used to measure sagittal-plane kinematics at miles 5 and 25 of the marathon. The dependent variables were stride length, ground time, peak knee flexion during support and swing, and peak hip flexion and extension during swing. …
Influence Of Estradiol And Exercise On Foot Laxity, Ankle Laxity, And Plantar Loading In College Athletes, Kristina Teri Silke
Influence Of Estradiol And Exercise On Foot Laxity, Ankle Laxity, And Plantar Loading In College Athletes, Kristina Teri Silke
Masters Theses, 2010-2019
As female participation in athletics has increased, it has become apparent that sex differences exist in sports-related injury types and frequencies. The purpose of this study is to examine the effects of exercise and the sex hormone estradiol on sex differences in foot and ankle laxity and plantar pressure. We measured serum estradiol, pre- and post-fatigue ankle and toe laxity, and pre- and post-fatigue plantar pressure in 47 subjects (34 female, 13 male) once a week for 12 weeks. We compared laxity and plantar pressure in females not using oral contraceptive (NOC) to females using oral contraceptives (OC) and males. …