Sandbag Good Mornings
To do Sandbag Good Mornings, stand with your feet about hip-width apart and hold the sandbag up at your chest with your arms wrapped up around the bag.
Then hinge over keeping your back flat. As you hinge over, push your butt back and keep your knees soft. Feel a stretch down your hamstrings as you focus on pushing your butt back.
Do not rock forward as you hinge over or round your back. Make sure to sit back in your heels as you hinge over. To keep your low back from doing all the work, make sure to keep your back flat and core engaged. You do not want to feel this move in your low back.
Drive through your heels to come back up to standing and really squeeze your glutes at the top of the move. Make sure to keep the sandbag up at your chest the entire time.
You can change your stance to hit your legs from slightly different angles. To get your adductors more involved, widen your stance. To focus more on the glutes and hamstrings, keep your feet closer together.
Just make sure to keep your core engaged and feel a nice stretch down your hamstrings as you do the move. You want your butt and hamstrings to power the hinge not your low back.