Tight hip flexors, especially a deep muscle called the psoas, can silently stress your spine. Here's why this muscle deserves ...

Three key movements to help build muscle: Pulling exercises such as bent-over rows, chin-ups and lat pulldowns engage several ...

Building muscle? Stable, mobile shoulders let you ... as you do when you reach your arm toward the ceiling (an idea called “shoulder flexion”). You also use your shoulder to raise your arm ...

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 ...

The shoulder and hip joints are both ... nor is the fibula). Allows bending (flexion) and straightening (extension). Muscles which move the knee are quadriceps and hamstrings.