Chinese Journal of Tissue Engineering Research ›› 2011, Vol. 15 ›› Issue (37): 6891-6894.doi: 10.3969/j.issn.1673-8225.2011.37.013

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Isokinetic testing and analysis of flexor-extensor muscle of the knee joint of women field hockey athletes

Cao Feng-rui1, Zou Liang-chou2, Peng Sen3   

  1. 1Physical Sport Institute of Taiyuan University of Technology, Taiyuan  030024, Shanxi Province, China
    2Postgraduate School of Guangzhou Sport University, Guangzhou 510500, Guangdong Province, China
    3Hunan Sports Vocational College, Changsha  410014, Hunan Province, China
  • Received:2011-03-06 Revised:2011-06-15 Online:2011-09-10 Published:2011-09-10
  • About author:Cao Feng-rui★ Master, Lecturer, Physical Sport Institute of Taiyuan University of Technology, Taiyuan 030024, Shanxi Province, China caofengrui@126.com

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Abstract:

BACKGROUND: In recent years, isokinetic test has been widely used by scientific research personnel to evaluate the strength character of athletes of different sport events. However, there are few reports describing the characteristics of the field hockey player by isokinetic test.
OBJECTIVE: This study tested the flexor and extensor torque of the knee joint of women field hockey athletes from Guangdong province to provide some results for the training of sport teams and scientific research.
METHODS: The flexor and extensor torque of knee joint of 14 women field hockey athletes from Guangdong province was performed isokinetic test using CON-TREX isokinetic testing machine. Detection indices include peak torque/body weight, peak torgue ratio of hamstring to quadriceps, average power, total work and fatigue index.
RESULTS AND CONCLUSION: Under the testing velocity of 60° per second, the peak torque/body weight values of extensor were significantly greater than those of the flexor (P < 0.01). Under three different velocities, the hamstring/quadriceps ratio of the left knee joint was 66%-77%, and the ratio of the right knee joint was 82%-88%. The average power of the extensor of left knee joint was significantly greater than that of the flexor (P < 0.01). The total work of the extensor of the left and right flexor was significantly greater than that of the flexor (P < 0.01). The fatigue index of extensor and flexor of the knee joint was 0.24-0.48. The most strength of knee joint extensor was greater than that of the flexor. The peak torgue ratio of hamstring to quadriceps of the left knee joint was slightly low at 240°/s, while the peak torgue ratio of hamstring to quadriceps of the right knee joint was slightly high at low speed. The results showed that the speed strength of the left knee joint of the women field hockey athletes was slightly low, the maximum strength of the right knee joint extensor was relatively low, the speed strength of the extensor was greater than that of the flexor, and the work ability of the extensor was stronger than that of the flexor, and the strength endurance of the extensor and flexor was relatively low.

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