Ball and socket joints also allow flexion and extension. Flexion of the shoulder joint occurs when the humerus (upper arm) moves forwards from the rest of the body, which happens at the end of an ...

If you have a sedentary job where you sit at a desk, table or behind the wheel of a car, there’s a high chance you’ve got tight hip flexors. The group of muscles that allow bending at the hip ...

Flexion – bending a joint ... This occurs at the hip and shoulder joints during a jumping jack movement. Adduction – movement towards the midline of the body. This occurs at the hip and ...