A brisk walk provides a low-impact workout that revs your heart rate. You can simply walk fast for 15 minutes or add some variations. Exercises by Leslie Sansone, creator of more than 80 walking videos, including 5-Mile Advanced Walk ($25, www.lesliesansone.com), and the author of Eat Smart, Walk Strong (Center Street, $15, www.amazon.com).

The Program

Warm-up
Walk at a moderate pace for two minutes.

Workout
Alternate regular walking for three minutes with one of the moves below, also for three minutes.

Marching Drummer: Lift each knee high in front and tap both hands on it.

Side Raises: Lift both arms, slightly bent, out to the sides to shoulder height with each step.

Kick-Backs: Lift each heel high, as if trying to kick yourself in the rear. Swing both arms slightly back at the same time.

The Perfect Walk

What It Does: Conditions the legs and arms; improves posture and balance.
How to Do It: Stand tall with hips over ankles, shoulders above hips, ears above shoulders. Bend both elbows to 90 degrees. Relax your hands in loose fists and press your shoulders down and back. Step forward, swinging your opposite bent arm forward. Swing your arms faster to pick up the pace.