A Core Workout for Flat Abs in 4 Simple Moves

Credit: Chris Shipman (all)

Squat sweep

A. Stand with feet shoulder-width apart, holding a 3- to 5-pound dumbbell between both hands. With your shoulders and hips square and knees pointing forward, lower into a squat and bring the weight down by your right hip.

B. Push from your heels up and out of squat position, sweeping the weight diagonally across your body until it’s above your left shoulder. Do 15 reps; switch sides and repeat.

Trainer tip: Need help maintaining proper form? Hold a yoga block or ball between your legs.