Adaptation mechanisms of the knee extensors contractile properties in response to short-term stretch-shortening exercise training

What is it about?

Numerous studies investigated the effect of stretch-shortening exercise training (SSC training) but the mechanism of how it changed the characteristics of the SSC moment-time curve and contraction velocity is unknown. Here, we examined changes in knee extensors’ SSC properties in response to unilateral SSC exercise training.

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Why is it important?

Our results may indicate that SSC training added to an athletes’ regular trainings may not selectively increase the stiffness of type II muscle fibers. Furthermore, short-range stiffness moment only slightly increased in the experimental group, which raises the idea that passive muscle elements may have no role in the development of reactive strength training.