2.5.1. Arm reaching crunch
Start by lying in a supine position with your knees bent, your feet flat on the ground, and your legs a fist-distance apart. Put both hands on your lap and extend them straight forward. By inhaling deeply, tighten the abdominal muscles to propel the shoulders and upper back upward sequentially until both hands touch the knees. Exhale as you return. As you move through the process, it’s crucial to keep the chin close to the neck, your lower back grounded, and your arms straight. This will maintain steady control of the abdominals throughout.