This movement can be a concentric or eccentric muscular contraction. Isotonic concentric contraction – this involves the muscle shortening. The origin and insertion of the muscle move closer ...

Previous research has shown that the size of the temporalis muscle, which is responsible for closing your jaw, is strongly associated with how much of an effect sarcopenia has had on your body.

Key fact One way to remember which muscle is the agonist – it's the one that's in 'agony' when you are doing the movement as it is the one that is doing all the work. For example, when you ...

It is a complex movement of the whole body to generate power to a golf ball to propel the ball great distances with accuracy. This movement relies on the coordinated sequence of muscle activation to ...