Slow-Twitch & Fast-Twitch Muscle Fibres Slow-Twitch & Fast-Twitch Muscle Fibres Health, Exercise & Fitness, Slow-Twitch & Fast-Twitch Muscle Fibres Slow-Twitch & Fast-Twitch Muscle Fibres Skeletal muscle groups of the body are made up of [...] Slow-Twitch & Fast-Twitch Muscle Fibresconnor2013-04-24T16:01:35+01:00