You don't need to lift heavy weights to strengthen and tone your core muscles, according to a personal trainer who shares three of her favorite exercises for your abs.

So, in the name of curiosity (and core strength), I decided to try a workout created by Justin Gelband — a world-class ...

Research has shown that training at longer muscle lengths can lead to growth—so make sure to focus on those lengthened ...

Press the weight straight up above your chest, holding the dumbbells in a neutral position (palms facing each other). Your ...