and your iliac is made up of two fan-shaped bones. They join together at your SI joint to form your pelvic girdle or hips. If you look at someone's lower back, you can see the two sacroiliac ...

"The most common cause for a tight lower back is sitting down a lot at your desk," says Foster. "It tightens the hamstrings ...

Discomfort in the lower back can be a result of tight or weak muscles ... imbalances that cause a lot of discomfort. Injury ...

The same thing can happen to a competitive runner after a four week break — like a college runner who gets back into high intensity ... Firstly, women often have lower bone density and secondly ...

Skeletal muscle is joined to bones ... arm and the triceps on the back of the upper arm. To raise the forearm, the biceps contract and the triceps relax. To lower the forearm, the triceps contract ...