RESUMO
Objective To discuss the characteristics of flexor and extensor torque of the knee joint by carrying out isokinetic testing on women handball players in Guangdong Province, and to provide some isokinetic test data for the strength and physical training research on handball players. Methods Flexor and extensor of knee joint in fourteen players from Guangdong provincial handball team were measured by CON-TREX isokinetic testing system. Relative peak torque, hamstring/quadriceps ratio, total work, average power and fatigue index were selected to study the isokinetic characteristics of the women handball players’ knee joint. Independent t tests were employed to compare the results between flexor and extensor. Results For women handball players, at the velocity of 60°/s (low speed test)and 240°/s(high speed test), the relative extensor peak torque value was significantly greater than that of the flexor（P＜0.01）; at the velocity of 240°/s, the hamstring/quadriceps ratio was about 76%; at the velocity of 60°/s, the total work and average power of the extensor was greater than that of the flexor（P＜0.01）; at the velocity of 240°/s, the total work and average power of the extensor in left knee joint were greater than that of the flexor（P＜0.05）; the range of fatigue index was from 0 to 0.49. Conclusions The maximum strength and speediness strength of extensor was greater than that of the flexor; at the velocity of 240°/s, the hamstring/quadriceps ratio of the knee joint was relatively lower, which showed that the speediness strength of flexor in knee joint was relatively low; the speediness strength and the working capability of the extensor in knee joint was greater than that of the flexor; the fatigue index of extensor and flexor of knee joint was relatively low, which may indicate that the level of strength stamina of extensor and flexor in knee joint was relatively low.
RESUMO
OBJECTIVE: To obtain the comparison data of the shoulder strength between handball players of college and general college students. METHOD: Fifteen subjects from each group, college handball players and general college students groups were tested. Peak torque, peak torque ratio of internal rotator to external rotator, peak torque to body weight ratio and average work during isokinetic exercise were studied. RESULTS: All of the parameters tested in handball players of college were greater than those of general college students. The peak torque in handball players was greater than that of general college students at 60o/sec, 180o/sec, which was statistically significant (p<0.05). The peak torque ratio of internal rotator to external rotator in dominant side of handball players was greater than the college group (p<0.05). The peak torque to body weight ratio at 60o/sec did not show significant differences between handball players of college and general college students. The average power at 60o/sec did not show significant differences between the two groups. CONCLUSION: The values of peak torque ratio of internal rotator to external rotator of the shoulder joint in dominant side of handball players were greater than those of the general college students. So it was suggested this result have to be considered in selecting handball players and exercise prescription.