@brandonspfit: Knee Up Crunch! 🦵 Beginner Bodyweight Ab Exercise to try! 1. Lie on your back with knees up to 90 degrees 2. Exhale and contract your abs as you slowly lift your shoulder blades 3. Press your lower back into the floor 4. Inhale and slowly control your body back to start position 5. Perform this exercise slowly to avoid using momentum to help #Fitness #health #abs #beginner #kneeup #bodyweight #exercise #workout