This is why they usually work a joint in pairs. One muscle of the pair contracts to move the body part, the other muscle in the pair then contracts to return the body part back to the original ...

Increasing your protein intake and incorporating strength training into your routine can help you lose body fat and increase muscle mass. Body composition refers to the amount of fat and fat-free ...

When muscle cells are viewed under the microscope, one can see that they contain a striped pattern (striations). This pattern is formed by a series of basic units called sarcomeres that are ...

Isotonic contractions – these occur when a muscle contracts and changes length and there are two types: Isotonic concentric contraction – this involves the muscle shortening. The origin and ...