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Comprehensive fitness involves a mix of strength training for hypertrophy, HIIT for metabolic health, and corrective exercises for postural alignment.

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What Affects the Strength of a Skeletal Muscle Contraction?

Published Jul,08 2011 | By Trent Salo

In order for the human body to move, skeletal muscles must contract. Each muscle in the body is composed of muscle fibers, organized into groups called motor units. These motor units receive signals from the brain when movement is desired.

Trent Salo has a master's degree in exercise physiology from the University of Kentucky and is a certified strength and conditioning specialist through the National Strength and Conditioning Association. During his time at Kentucky, Salo served as a personal trainer and strength coach while teaching four undergraduate courses in the exercise science department. He is pursuing a Doctor of Physical Therapy at the University of St. Augustine.