Training my abs is always tough, so I figured why not push it even further? I swapped out the usual sit-ups and Russian twists for a four-move dumbbell workout to really spice things up. I've been ...

This is how one exercise can completely transform your core power and shoulder stability over time.

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. Sprint interval ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. Credit: Getty Images/gzorgz Far from being an easy alternative, chair workouts can improve your ...

Chair exercises for leg strength after 50, a CPT shares 5 moves that build stronger legs with less joint stress than weights.

For those who live to sweat — but maybe want a chance to fully catch their breath — SIT is the new HIIT. HIIT, or high-intensity interval training, includes bursts (typically 30 seconds to a few ...