While many forms of cross training can help support your miles, lifting weights can bolster your performance ... to floor and right shin is vertical, left knee hovers just off the floor.

Hold the bridge and sweep your left leg back until your left knee is on the floor under your hips. Lift your left hand and rise into a half-kneeling lunge. From there, swing your left leg forward and ...

You lift weights to be strong and fit — and now your kid wants to do it, too. Is that safe? Probably — but, as with much in parenting, it depends. With proper supervision, children as young as ...