Group Fitness Feedback Core A strong body starts with a strong core! This express workout stabilizes and strengthens the key core muscles needed for all physical activities to improve posture, balance, and overall body function. Body Pump This workout challenges all the major muscle groups to increase muscular endurance through high repetitions and low loading of compound movements. Get ready to get strong! Booty Bootcamp This class is all about the lower body. Work the glutes and give your body balance by also strengthening the core, hamstrings, and lower back.