The best strength-training tool depends on your goals. Find out which one will help you ease back pain, challenge your core ...

They might be some of the larger muscles in the lower body, but you wouldn't be the only one to forget your quadricep ...

This six-move workout from fitness trainer Kat Boley is definitely one such workout. Using one dumbbell, it works all the major muscle groups in the body in just 20 minutes, and along with building ...