Function Your abdominal muscles with crunches. Commence by lying on the back with the knees bent and toes flat on the floor. Area your palms throughout your chest or powering your head, engage your ab muscles, and exhale while you gradually increase your upper torso off of the floor.[15] X https://fitness-health-quotes19361.nytechwiki.com/9834756/a_secret_weapon_for_exercise_equipment_guide