Lean mass includes muscle, bones, ligaments, tendons, organs, other tissues and water -- in other words, everything that's not body fat. Depending on what method you use to measure your body ...

Many people expect to see quick results when trying to build muscle. It's understandable, especially when you constantly see others showing off their progress on social media. However, the process ...

What Is the Psoas Muscle? The psoas (pronounced so-ezz) muscles are two large muscles in your lower back. You have one on either side of your spine. They're the main muscular connection between ...

Muscle growth, or hypertrophy, is an increase in the weight of a muscle with no change in the number of fibers present. Depending on your physical needs and goals, you may be interested in taking ...

The finding sheds new light on what triggers muscle growth, why you need adequate fuel and how to exercise to avoid robbing your triceps to pay your biceps. Derave’s team recruited 21 volunteers ...

A latissimus dorsi flap is a surgical procedure that uses part of an upper back muscle to reconstruct the shape of the breast. This surgery is typically done after a mastectomy (surgical breast ...

Teachers aren't the only ones who carefully follow grading systems. Physical therapists use a muscle strength grading system to define how a muscle or group of muscles is performing. PTs commonly use ...

The NFL Network reports backup nose tackle Kyle Peko tore a pectoral muscle during the game that will require surgery and likely cost him the rest of the season. Fellow football greats weigh in on ...

Peko is expected to undergo surgery on his torn pectoral muscle and will likely miss the rest of the 2024 season, Tom Pelissero of NFL Network reports. Peko suffered this injury during the Week 6 ...