"Hearst Magazines and Yahoo may earn commission or revenue on some items through the links below." Regularly incorporating this powerful hip extension exercise into your routine can help you run ...

Step-ups may look basic, but they're one of the clearest signs of how strong and efficient your body still is. This single move combines leg power, coordination, and cardiovascular endurance, all the ...

If you only have about 20 minutes to work out, make it count with this three-move AQAP workout. AQAP stands for "as quick as possible," which means you're moving fast and you don't stop until you're ...

This week's workout comes from a trainer at New York Sports Club. Utilizing a box for a step-up is a great way to engage your core and work your lower body. Why not try to elevate that move by ...

Leg day just got a whole lot darker. Seriously dark! I consider myself relatively fit. I train consistently, I lift, I run, I even do Pilates (sometimes). But nothing (and I mean nothing) prepared me ...

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