ARTICLES: WHAT YOU NEED TO KNOW ABOUT CONTRACTIONS AND REPS!

Contractions, Reps, and Timing
What is Contraction?Every muscle fiber (Myofibril) hones a great deal of fiber filaments (Myofilaments), which are divided into two groups:

Actin Filaments- These are also termed “The Thin Filaments”. These filaments are coiled with nebulin filaments.

Source: www.doyoueven.com

See on Scoop.itThe 5 Chambers Of Fitness

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