Image: Beth Bischoff
Targets: Quadriceps, glutes, hamstrings, core
Purpose: Builds full-body strength
Stand with feet shoulder-width apart, arms at sides. Keeping your back straight, extend your arms for balance and bend your knees until your thighs are parallel to the ground (don't let your knees travel too far forward). Press into your heels and return to the starting position.
Build on It: Work up to 50. Add weight with dumbbells or a barbell.