emphasizes bending the elbow to bring the forearm closer to the upper arm, making it an extension-focused movement. If you’re ever unsure, keep this simple maxim in mind: flexion is forward and ...

For example, the elbow flexes when performing a biceps ... Ball and socket joints also allow flexion and extension. Flexion of the shoulder joint occurs when the humerus (upper arm) moves forwards ...

5 These data reveal the extreme forces that the elbow must repetitiously absorb during tennis strokes in flexion and extension direction. In most sports with overhead movement, including tennis, an ...

Flexion – bending a joint. This occurs when the angle of a joint decreases. For example, the elbow flexes when performing a biceps curl. Extension ... at the hip and shoulder joints during ...