(1.Xi’an University of Physical Education,Xi’an 710068,China; 2.School of Physical Education,South China Normal University,Guangzhou 510006,China)Abstract: By using MEGAWIN 12 myoelectricity tester, the authors did a bioelectricity test on 8 left-right symmet-rical muscles in the entire technical process throwing by 3 excellent female discus throwers in China today, and re-vealed the following findings: SUN Tia-feng had good lower limb muscle strength, but poor lumbar and abdominal muscle strength; SONG Ai-min had weak overall muscle strength, especially lumbar and abdominal muscle strength, but a faster muscle integration rate, and a high degree of coordinated power exertion between muscles; LI Yan-feng had powerful muscle strength, but a low discharge rate, and a poor degree of coordinated power exertion between various muscles. Key words: sports biomechanics;excellent discus thrower;throwing technique;characteristics of muscle power exertion |