When it comes to high-intensity moves, it's fair to say I have a love-hate relationship with them. I love the sweaty, endorphin-fuelled high that follows them, but actually doing the exercise? Not so ...

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 ...

Bodyweight exercises aren't always known for their intensity. You can max out on situps and pushups and squats, but you'll probably need to burn through a ton of reps to get a sweat going. The most ...

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 ...

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 ...