The rectus abdominis muscle originates at your pubis and is inserted in your ribs. What does this mean for you? Your muscles contract from insertion to origin which means that when you do crunches, you are bringing your chest to your knees. Concentric contractions like this are not the only ways you can work your abdominals. You can also work them eccentrically by doing the Captain's Chair exercise.
2. Hold body up by pressing weight into arm cushions, keep shoulders down. If you're holding a bar, steady yourself.
3. Hang legs straight down. Slowly, bring knees up. To make it more difficult, keep legs straight and hinge from the hips.
4. Slowly, bring knees/legs down into starting position.
This exercise will work your hip flexors when you bring your knees up and your abdominals when you bring your knees down.
In health,
Lauren
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