A medical professional explains the anatomy and muscle control behind voluntary chest movements often seen in fitness or viral videos.

Dana Santas, known as the “Mobility Maker,” is a certified strength and conditioning specialist and mind-body coach in professional sports, and is the author of the book “Practical Solutions for Back ...

You don't need expensive equipment or a gym membership to develop strength, burn fat, and achieve a leaner physique.

New research identifies a muscle protein called NOX4 that declines with age and inactivity, potentially explaining why ...

In TODAY.com’s Expert Tip of the Day, a trainer reveals how to get more out of your stretching routine and give your muscles ...

A study in the Journal of Applied Physiology suggests quick bursts of moderate-intensity exercise can help your body use amino acids from your meals, which helps you build muscle. Researchers found ...

Kick off your workouts with compound movements (aka multi-joint movements), like squats for your legs, deadlifts for your ...

Two certified trainers share 5 morning exercises that rebuild muscle mass and functional strength after 60 without a gym.

The joints in your body are enveloped by muscles that coordinate their movements. These muscle groups counterbalance each other and work together to complete a movement. The muscles on either side of ...

Life in the cold can be difficult for animals. As the body chills, organs including the brain and muscles slow down. Although scientists know mammals can increase their metabolism in the cold, it has ...