A quick scroll through Nicole Polizzi (aka Snooki)’s Instagram proves the mom of three is all about hitting the gym hard. From handstand walkouts to gymnastics tumbling, the Jersey Shore alum loves to test her strength. Her latest home workout: pistol squat burpees—which look just as tough as they sound.
Looking for more challenging exercises to spice up your workout routine? Try a shrimp squat, which is an even harder version of a pistol squat. (Or try some of these other hardest and best exercises from real trainers.)