The Effect Of Preloading Exercises On The Muscle Strength

Objective: I explored and analysised the different effects on the muscle adaptation between preloading exercises and unpreloading exercises experimentally and theoretically through two aspects including dynamics, electrocardiograph and then discussed the different effects on the athletes’ development of strength becauses of this different muscle adaptation. Methods: This paper chooses 16 women table tennis players of Zhejiang province team as the experimental subject.The strength and SEMG signal of the elbow muscle are tested by using Isomed 2000 isokinetic testing systems and Mega6000 SEMG test systems.Results: 1.The preloading exercise group and unpreloading exercise group’s subjects’ relative peak torque is significantly different (P<0.05). 2. The preloading exercise group and unpreloading exercise group’s average IEMG is significantly different (P<0.05). 3. The preloading exercise group subjects’ TAE is significantly improved(P<0.05) while there is no significant improvement of another froup(P>0.05). 4.The preloding exercise group subjects’ reducing of their average joint angle which the peak torque is corresponding (P<0.05) while an other group is contrast (P< 0.05). 5. There are no signigicantly different beetween the two group’ Biceps’ circumference (P>0.05). CVonclution:1.Preloading exercise can better improve muscle maximum strength than the unpreloading exercise. 2. The preloading exercise can improve the muscle’ power beteer than the unpreloading exercise. 3. Both of the two exercise can increase the muscle cross-sectional area.