Abdominals are the mirror muscles that everyone who exercises looks forward to. Crunches will get you on your way to having chiseled abs, but most importantly, you’ll be developing the stability and control for your entire body that comes from having a functionally fit core.
How to Crunch
1. Lie flat on your on back, with the knees bent, feet on the floor.
2. Put your hands at the ears. Hold the head and neck in neutral position, not flexed.
3. Breath out and contract your abdominal muscles to lift your head neck and shoulders from the floor, no more than 30 degrees.
4. Hold at the top briefly and then lower yourself slowly head slowly.
Focus on the motion of your upper back, not your lower.
Raise the torso to just 30 degrees of total trunk flexion and make sure you accentuate the isometric portion (the static hold when you keep the body motionless) at the top as well as the eccentric (lowering) component.