Kidney disorders often provoke pain in the flank area of the back. A kidney infection or a kidney stone is most commonly to blame.

Elevated muscle enzyme levels occur with strenuous exercise, muscle trauma or disease, and a wide variety of other nonmuscular diseases and conditions.

Although it's not often talked about, fascia plays a large role in how your body feels. Take good care of it through stretching, rolling and other techniques.

Tight quadriceps muscles can throw the hips and knees out of whack, leading to pain in both places, as well as in your lower back.

Leg weakness isn’t necessarily a problem. When you notice that your legs feel weak whenever you climb stairs, visit the doctor.

Proprioceptive neuromuscular facilitation (PNF) is a stretching technique that takes advantage of the way your nervous system works to increase flexibility.

Muscle strains and pulls are the same injury. If you strain your hamstring you'll likely hear a pop and see bruising.

The hamstring muscles are at the back of your thighs. Their primary purpose is to bend the knee.

Pain medications may help for awhile, but sooner or later you'll want to treat tight leg muscles in a natural and sustainable way.

Swollen legs after exercise may just be a consequence of spending extra time on your feet. If it happens often, consult your physician.

The leg contains a number of important, large muscles and tendons that help with every action, from walking to lifting weights to sitting in a chair.

Hip extension is a movement you do everyday. It uses the muscles of the butt and thighs to help you walk and stand up from a seated position.