If squats are making your knees grumble, don't sweat it! These 4 alternative exercises will strengthen your legs and glutes ...

Arm and Ab Workout Elsa Pataky's workout consists of four key exercises that require the use of weights and TRX bands. Each exercise is performed for 40 seconds and repeated in four rounds ...

Read on for the best for every need and workout style. These resistance bands from TRX, which is known for its suspension trainers, are high quality and come in a variety of resistances.