A Pilates instructor shares three Pilates exercises you can do to build stronger glutes and open your hips after a long day ...

Plus, which move is more effective for strong abs.

Workouts Not sit-ups or lunges — I use this simple Pilates exercise to sculpt strong obliques, inner thighs and hip stabilizers Workouts I tried a 10-minute hip flexor strengthening routine for two ...

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 ...