If you need some good guidance on strengthening your core and back I highly recommend Foundation Training. book: https://www.amazon.com/Foundation-Redefine-You

If you need some good guidance on strengthening your core and back I highly recommend Foundation Training. book: https://www.amazon.com/Foundation-Redefine-Your-Conquer-Confidence/dp/1609611004 https://www.amazon.com/Foundation-Redefine-Your-Conquer-Conf... streaming workouts: https://www.foundationtraining.com/ https://www.foundationtraining.com/