Stand with feet hip-width apart, toes pointed out slightly, body weight in heels; hold a weight with both hands, arms extended at eye level. With chest lifted, sink down until hips are below knees (as shown). Return to start. Do 30 reps. Target: butt, thighs
Place hands on wall, wrists aligned with shoulders, legs straight, heels slightly raised. Keeping hands planted, quickly alternate driving knees toward chest in a high-knee run (as shown). Continue for 1 minute.
Start in push-up position with arms slightly wider than shoulder-width apart, legs extended behind you with feet hip-width apart (as shown). Bend arms to lower body until chest and thighs touch floor, then push back up to start. Do 5 reps. Target: shoulders, triceps, chest, abs
Lie faceup with legs together, toes pointed, arms extended overhead on floor, palms facing in. Engage abs and lift shoulders and feet off floor, creating a banana shape with your body (as shown). Rock back and forth for 1 rep. Do 10 reps. Target: abs