Associations Between Individual Lower-Limb Muscle Volumes and 100-m Sprint Time in Male Sprinters

Autor: Norihide Sugisaki, Kai Kobayashi, Hiroyasu Tsuchie, Hiroaki Kanehisa
Rok vydání: 2017
Předmět:
Zdroj: International journal of sports physiology and performance. 13(2)
ISSN: 1555-0273
Popis: Purpose:To elucidate the relationship between the muscularity of individual lower limb muscles and 100-m race time (t100) in young adult male sprinters. Methods:A total of 31 young adult male sprinters took part in this study (age, 19.9 ± 1.4 years; height, 173.5 ± 4.6 cm; body mass, 67.0 ± 4.9 kg; t100, 10.23–11.71 s). The cross-sectional images from the origin to insertion of 12 lower limb muscles were obtained with a magnetic resonance imaging (MRI) system. The absolute volume of each muscle, the ratio of total volume of measured muscles to body mass, the ratio of individual muscle volume to body mass, and the ratio between two individual muscle volumes were calculated as indices of muscularity using the images. A stepwise multiple regression analysis was performed to examine the association between the indices and t100. Results:A stepwise multiple regression analysis produced an equation (adjusted R2 = 0.234) with the gluteus maximus-to-quadriceps femoris muscle volume ratio (β = −0.509, p = 0.003) as...
Databáze: OpenAIRE