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Journal of the Korean Academy of Rehabilitation Medicine 1990;14(2):14.
A Study of Isokinetic Testing at the Knee Comparing Soccer Players and Non-players
Tae Sik Yoon, M.D., Sae-il Chun, M.D., Jung Soon Shin, M.D., , Byung Gwon Park, M.D.
Department of Rehabilitation Medicine, Yonsei University College of Medicine
대학축구선수와 일반대학생의 슬관절 등속성운동 비교
윤태식, 전세일, 신정순, 박병권
연세대학교 의과대학 재활의학교실

Isokinetic evaluation of bilateral quadriceps and hamstrings at 60⁗/sec, 120⁗/sec, and 180⁗/sec was performed using the Isokinetic Rehabilitation and Testing System (Model No. Cybex 340) on 30 male students comprising 15 soccer players (Group 1) and 15 general students (Group 2) with no significant difference in age, weight, and height between the two groups. All subjects used their right foot to kick the ball.

In both groups, there were no significant differences in the mean peak torque of both muscles between dominant (right) and nondominant (left) limbs. There were no significant differences between Group 1 and Group 2 were found in the angle of peak torque output for the quadriceps. No significant differences between the two groups were found for average power, torque acceleration energy, or total work of both muscles. There were significant differences between Group 1 and Group 2 in the hamstrings to quadriceps(H/Q) ratio at 180⁗/sec and also in the endurance ratios for both muscles at 180⁗/sec. As the angular velocity increased. the H/Q ratio for Group 1 was significantly increased(P<0.01), but there were no significant changes in the H/Q ratio for Group 2.

Key Words: Peak torque, Angle of peak torque, H/Q ratio, Soccer players &, nonplayers
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