The Muscular System
The muscles are the most obvious part of the body to benefit from massage. Muscles are made up of fibres that slide over each other (the sliding filament theory) to contract (shorten and fatten) and pull on the bone the muscle is attached to, to create movement. Muscles can contract to 50% of their normal length and stretch to 150% of their normal length. Through over use and also through stress (due to the fight and flight response) the muscles can stay in a contracted state, causing imbalance in the body. Tight muscles will pull posture out of alignment and can constrict blood flow.