Ahh, the hamstring strain. It’s happened to plenty of athletes-and loads of everyday people, too. One moment, you’re just running along. The next, you’re crumpling to the floor, grabbing the back of ...

For strong, powerful legs, you need to work both your quads (on the front of your thighs), and hamstrings (on the back). For the quads, squats are a given. But what are the best exercises to hit the ...