Single-leg hops With hands on hips or out to sides for balance, hop in place on one leg for up to 30 seconds, then switch legs. Next, hop forward and back on one leg for 30 seconds, then switch legs. Finally, hop side to side on one leg for 30 seconds then switch legs.

Double-leg bound With hands on hips or out to sides, stand with legs about shoulder-width apart. Lower into a squat, then jump forward as far as you can. Repeat for 30 seconds to a minute.

Alternate leg bound Using an exaggerated running motion, bound forward from one leg to another (it looks like a combo of running and jumping) for 30 seconds to a minute.

Squat jumps With hands on hips or out to sides, stand with legs about shoulder-width apart. Lower into a squat, then jump straight up as high as you can. As you land, lower into a squat and immediately jump up again. Repeat for up to a minute.

Depth jumps Stand on an aerobic step, sturdy bench or plyo box that's about a foot high. Jump onto the ground with both feet, landing in a squat. From there, jump straight up as high as you can. Step onto the box again and repeat for up to a minute.

Box jumps Stand on the ground next to an aerobic step, sturdy bench or plyo box that's about a foot high. Jump with both feet onto the step, then immediately jump back down to the ground. Repeat for up to a minute. As you get stronger, try doing this with one leg at a time.