The group fitness class - one of many created by the Auckland, New Zealand-based Les Mills gym - mixes music with weights for ...

Two of the favorite workouts this week accomplished by many of the local special-ops candidates were mirror-image twin workouts called the Run-Swim-Run and the Swim-Run-Swim. The recommendation is to ...

Warm up with a short jog mixed with some leg dynamic stretches (butt kickers, leg swings, high knee, etc.) for 25-50 meters with a squat pyramid: increasing each set by one rep until you get to 10 ...

Cristina Peerenboom and Kirsten Potenza share a passion for fitness and drumming. It’s only natural that the athletes created the Pound workout, a full-body exercise that combines light resistance, ...

Get ready to be the star of the show with host, dancer, and fitness instructor Christina "Poofy" Moffitino, who will be leading this 30-minute girl-band dance workout joined by Lilian Gonzalez and ...

Beth Skwarecki is Lifehacker’s Senior Health Editor, and holds certifications as a personal trainer and weightlifting coach. She has been writing about health for over 10 years. So where should you ...