Sandbag Back Squats September 15, 2014ExercisesSSD Sand Bag Back Squat: This lift is similar to the Barbell Back Squat. Placing the bag across your back, keep your eyes forward while pushing the chest out and taking a breath. Keeping the lower back tight, Initiate the movement at your hips as you lower your body at the same speed as your knees bend. Make sure that you keep your weight in your heels and sit back. Then raise your body through pushing your hips though and straightening the legs. Once again Keeping the weight on your heels.