The ACSM released new resistance training guidelines to improve muscle strength, size, and performance. medical News today ...

WANT TO BUILD visible muscle without packing on fat—and be able to do it for years to come? Some in fitness will tell you ...

Your workouts might change, but your fitness doesn't have to suffer ...

Men can expect to build 35 to 45 pounds of muscle over their lifetime, and 20 to 25 pounds for women. How easily we build muscle depends on a range of factors, personal trainer Mike Matthews said.

This article is part of a broad series on recent advances in the science and medicine of longevity and aging. The series covers a range of topics, including musculoskeletal health. Expect more ...

Once you've found a strength-training routine that works for you and you've committed to doing it two to three times a week, you'll be eager to see results — so when do the noticeably chiseled arms ...

You may not need to train until failure.

Trying to lift heavier at the gym, improve athletic performance or simply carry day-to-day items with ease? Gaining muscle ...