LIBRARY

Crunches are a classic abdominal exercise where you lie on your back and curl your shoulders off the floor to contract your core. The primary target is the rectus abdominis, the muscle that forms the visible six-pack, with the obliques assisting. Lie with your knees bent and feet flat, hands lightly behind your head or across your chest, then lift your shoulder blades off the floor by drawing your ribs toward your pelvis. Keep the movement small and controlled, exhaling as you crunch up and lowering slowly. Avoid pulling on your neck with your hands or yanking your chin to your chest; let your abs do the work and keep a gap under your chin. Lower back stays on the floor throughout. Crunches build abdominal strength and endurance, and they work best as part of a broader core routine.

Exercise descriptions were generated with AI. Always consult a qualified professional before starting a new training program.