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PECULIARITY OF MUSCLE STRENGTH IN THE LOWER LIMBS OF SOCCER PLAYERS FROM THE PERSPECTIVE OF ISOKINETIC MUSCLE STRENGTH AND MRI FINDINGS IN COMPARISON WITH THOSE OF ARCHERS / 体力科学
Article in Japanese | WPRIM | ID: wpr-362411
Responsible library: WPRO
ABSTRACT
This study examined peculiarities in both muscle strength and cross-sectional area (CSA) among soccer players in comparison with those of archers as contrasting athletes. Subjects were 15 male soccer players and 9 male archers at N University. Measurement items were height, body weight (BW), isokinetic muscle strength (knee extension, knee flexion, hip extension, hip flexion) and CSA (psoas muscles). Isokinetic muscle strength (30, 120, 240°/sec.) was measured by Cybex6000 (Lumex Co.), and the psoas muscle CSA was determined using magnetic resonance imaging (Hitachi, Japan). Results were as follows 1. There was no significant difference in isokinetic knee extension and flexion strength/BW at all angular velocities between soccer players and archers. 2. On isokinetic hip flexion strength/BW, the average values of soccer players were significantly higher at all angular velocities than those of archers. However, there was no significant difference in the average values of isokinetic hip extension strength at all angular velocities between the two groups. 3. The average value for the psoas muscle CSA in soccer players was significantly higher than that of archers. In this study, the biggest difference in muscle strength between soccer players and archers was hip flexion strength, and the CSA of the psoas muscle in soccer players, which is the main component of hip flexion, was significantly larger than that of archers. These findings showed the peculiarity of soccer players due to the constant demands of movements involved in ball kicking and running during practice and competition.

Full text: Available Index: WPRIM (Western Pacific) Language: Japanese Journal: Japanese Journal of Physical Fitness and Sports Medicine Year: 2007 Type: Article

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Full text: Available Index: WPRIM (Western Pacific) Language: Japanese Journal: Japanese Journal of Physical Fitness and Sports Medicine Year: 2007 Type: Article