Start standing with both feet shoulder-width apart and a dumbbell in each hand, arms at your sides. Draw your shoulder blades down and back to push your chest out slightly.
Keeping your arms straight and knees slightly bent, slowly shift your hips backward, and lower the weights as far as possible without rounding your back.
Allow the dumbbells to run along the length of your thighs and halfway down your shins. You should feel tension in your hamstrings.
Push through your heels, and, using your glutes and hamstrings, pull yourself up to return to the starting position. Squeeze your glutes at the top of the move.