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

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 ...

From heavy strength training to mixing up her workouts with diverse routines, the actress leaves no stone unturned when it comes to staying in shape.