| (Department of Sports Science of Human Body,Guangzhou Institute of Physical Education,Guangzhou 510075，China) Abstract: Using CybexII+ isokinetic muscle strength testing system, the author carried out a standardized and quantified measurement on the strength of flexor and extensor groups of knee joint of Guangzhou city's 128 middle and old age citizens who have performed shuttlecock kicking exercise for two years, and revealed the following finding: Obvious difference occurs in various muscle strength indices in before and after comparison of stamina and break-out force of flexor and extensor groups of knee joint of the males and females.
Key words: shuttlecock kicking; strength of lower limb muscles; middle and old age citizens; Guangzhou |
