force-velocity relationship

The Force-Velocity Relationship

The force-velocity relationship describes the relationship…


muscle contraction

How Do Muscles Contract?

Muscle contraction occurs when actin and myosin filaments…


the size principle

Muscle Fiber Recruitment: The Size Principle

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


fast-twitch muscle fibers

Fast-Twitch Muscle Fibers – An In-Depth Look

Fast-twitch muscle fibers contract with a lot of force, but…


anaerobic respiration, fitness components

The Basics of Energy Production: Anaerobic Respiration

Anaerobic respiration refers to producing energy without…


phosphagen system

The Basics of Energy Production: The Phosphagen System

The phosphagen system uses stored ATP and CP for energy…


aerobic vs anaerobic energy metabolism, sports science

Aerobic vs Anaerobic Energy – A Guide To Human Energy Metabolism

Aerobic vs anaerobic metabolism - what's the difference?…


maximum speed training

Become a Better Sprinter With Maximum Speed Training

Maximum speed training is the bread-and-butter of every…


muscle fiber types

Complete Guide To Muscle Fiber Types

Your skeletal muscles consist of two different muscle fiber…


plyometric training

Plyometric Training

Since its inception in the late 1960s, plyometric training…