Muscle Fibers and Sarcomeres

Muscle Fibers and Sarcomeres

How Muscles Become StrongerEach muscle fiber is made of a series of blocks called sarcomeres that are lined up end to end. Each sarcomere is attached to the one next to it at a “Z line.” Muscle fibers do not contract equally along their lengths; they...
Muscle Fibers and Sarcomeres

What to Eat and Drink for Hot Weather Exercise

When you exercise in hot weather, you don’t need special sports drinks or power bars. A review of 46 studies shows that a person can prolong endurance by eating before and during exercise (Scand J Med Sci Sports, 2018 May;28(5):1476-1493). However, even the most...
Muscle Fibers and Sarcomeres

Blisters

If you feel discomfort or pain in the skin of your feet while you are exercising, stop exercising immediately and correct the problem. Continuously rubbing your skin can cause very painful blisters that can break and leave you with open painful areas for many weeks....
Muscle Fibers and Sarcomeres

Benefits of Resistance Exercise

The American Heart Association recommends that “accumulating evidence suggests resistance training is a safe and effective approach for improving cardiovascular health in adults with and without cardiovascular disease. Resistance training not only can improve or...