Strength is a matter of the made-up mind.
DipRT Aim to complete up to three sets of between 10 and 20 repetitions of each exercise, and be sure to rest a couple of minutes between sets. Remember to keep your movements slow and controlled so your muscles are doing the work, not your momentum. To avoid pain, keep your movements small at first this ensures that your abdominals are working rather than your neck or back. Finally, remember to breathe deeply in on the way down and out when raising your upper back up off the floor. Instructions Lay on your back with your knees bent up at a 90-degree angle and your arms across your chest as shown.