skeletal muscle

Skeletal Muscle Anatomy

Skeletal muscle is one of the three muscle tissues found in…


training variables

A Comprehensive Guide To Resistance Training Variables

Training variables like volume, load, rest, frequency,…


the size principle

Muscle Fiber Recruitment: The Size Principle

The size principle means that motor units (motor neuron and…


all-or-none law

Muscle Fiber Recruitment: The All-Or-None Law

The all-or-none law states that if a stimulus exceeds an…


motor unit

What Is a Motor Unit?

A motor unit is the functional combination of a motor…