Perform the following exercises for 15 seconds each.
Start with your feet hip-width apart and hands at your sides. Simultaneously raise your arms above your head and jump so you can spread your feet shoulder-width apart. Then jump again to lower your arms and bring your feet together. Repeat.
High KneesRun in place, with knees driving toward your chest.
Starting with feet together, push off with your right foot to hop laterally to the left about 3 feet. Land on your left foot and follow with your right. Hop back, this time pushing off with your left foot. Repeat.
Mountain ClimbersStart in a pushup position. Keeping your head in line with your body, bring your right knee to your chest, then back to starting position. Alternate rapidly with the left leg.