Researchers have made strides creating strong, long-lasting imitation muscle as science fiction slowly evolves into fact.

The shoulder is one of the most mobile and complex joints in the human body. It is primarily composed of three muscles called deltoids, which are divided into three parts: Training all portions of ...

Deltoid Abduction of the shoulder (moving the arm outwards and away from the body) Outward arm action in a jumping jack Rotator cuffs A group of stabilising muscles of the shoulder which helps to ...