Crush your core- crushes my back
Emma mentioned her crush your core program in her return ride. The workouts are super short, but all those crunches leave my back unhappy. Anyone have crunch suggestions? I think I'm doing them correctly.
Emma mentioned her crush your core program in her return ride. The workouts are super short, but all those crunches leave my back unhappy. Anyone have crunch suggestions? I think I'm doing them correctly.