You haven't seen a mountain climber exercise like this before. Here's how to turn up the heat with an intense pyramid routine from trainer Kirsty Godso. Kirsty Godso, a Nike master trainer, recently ...

The mountain climber is a core training staple that can help build a strong core and get you moving, but are you sure you're even doing the exercise correctly? For this movement, you shouldn't settle ...

Wall sits are a static exercise that builds endurance in the muscles of the lower body. By holding a squat position against ...

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With feet inside TRX straps, hold yourself in an upright plank position. While in plank, alternately drive your knees into your chest. Be sure to engage your abdominals and lock out arms to keep your ...