Ever notice how some friends struggle to gain muscle no matter how much they lift, while others seem to bulk up just by ...

These body type classifications have their roots in discredited pseudoscience—but they're still common shorthand at the gym.

Barcelona have officially confirmed that Robert Lewandowski has sustained an injury to the ‘semitendinosus muscle in his left thigh’, which he picked up during the team’s victory over Celta Vigo. The ...

The 33-year-old posted a video on Instagram of him looking buff, in black sweatpants and black muscle tank ... He said, "My whole life I hated my-ectomorph body. I've always been known as ...

Intercostal muscle strain is an injury affecting the muscles between two or more ribs. Symptoms can include sharp, direct pain, stiffness, and mobility difficulties. The intercostal muscles have ...

Bodybuilding veteran Rich Gaspari hasn’t turned his back on the gym since retiring from the sport. Recently, he broke down how to add muscle and simultaneously burn fat with proper dieting and ...

Muscle rigidity is very common, and it can be uncomfortable. You can have stiff and tense muscles due to various causes—such as sitting or sleeping in the wrong position, or it can be the result of a ...

Muscle strength grading is used to categorize muscle strength on a scale of 0 to 5 in relation to the expected strength for a muscle. One of the more common methods is a hands-on test called the ...

Sarcopenia is muscle loss that becomes more common as you get older, with this condition involving more of a decreases in muscle mass and strength than you might otherwise experience. You can help ...

Sarcopenia is a condition in which muscle mass, strength, and performance diminish with age. Treatments may include medication, eating changes, or resistance exercises. You may lose muscle mass as ...

No problem! You can use hand-held weights, resistance bands, or even your own body weight to build muscle. It's never too late to start. As you age, strength training (also called resistance ...