カイ・グリーンのインスタグラム(kaigreene) - 1月6日 06時31分

When performing resistance exercise, the eccentric component, or the lowering phase, seems to be an essential component for muscle hypertrophy. Maximal eccentric contractions have been found to cause greater increases in protein synthesis; additionally, eccentric contractions produce several differences in gene expression in muscle compared to concentric exercise (lifting the weight). It has been reported that eccentric contractions can cause large increases in several genes involved in the infl ammatory responses. The resulting cytokines produced from inflammatory mediators are thought to play important roles in muscle degeneration/regeneration and growth.

Interestingly, concentric contractions don’t seem to activate this pathway, as concentric contractions don’t induce muscle damage as eccentric contractions do. Both animal and human studies point to the superiority of eccentric contractions in increasing muscle mass. Read the full article on @flex_magazine .com @musclemeds #KaiGreene

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