One armed kettlebell sit-ups, medicine ball rotations and a real life ninja doing a flip! #kettlebell #medball #medicineball #situps #situp #fitness #gym #gymlife #gymrat #workout #strength #cardio #explosion #ironmichael #ninjaflip #flip #gymnastics #mma #grappling #wrestling #kickboxing #ninja #boxing #ufc #bellator monsterenergy morethanafuel americanethanol toyotaescondido adidascombatusa pullinstagram pullincalifornia supersagenorthcutt fitness_videos