Tension triggers muscle building -- ScienceDaily Skeletal muscles are built from small contractile units, the sarcomeres. They are connected in a well-ordered series to form myofibrils that span the entire muscle. Contractions of these sarcomeres result...
from Therapeutic Massage With Derrick http://buff.ly/1m8UuaM
from Therapeutic Massage With Derrick http://buff.ly/1m8UuaM
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