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If you're aiming to strengthen your abdominal muscles, crunches can be a great option. It's similar to the sit-up movement, but instead of lifting your whole back off the floor, you only raise your upper back. This exercise isolates the abdominal muscles, preventing the hip muscles from engaging. Once you master the basic crunch technique, you can progress to reverse crunches, oblique crunches, side crunches, and cable crunches.
Steps
Basic Crunch
Lie on your back on the floor. Use a mat or a cushioned surface for comfort, but ensure the mat is not too thick.
- For added resistance, perform the exercise on an incline bench.
- Some people prefer to do crunches on a stability ball.
Bend your knees. You can place your feet flat on the floor or keep them suspended in the air during the exercise to make it more challenging.
Cross your arms in front of your chest. Alternatively, you can place your hands behind your neck or head, but many people tend to pull on their neck or head while doing the exercise, which adds strain on the spine. Your head and neck should rest in your hands.
- To increase resistance, hold a weight on your chest or behind your head.
Lift your shoulders using your abdominal muscles and pause briefly at the highest position. It's important not to lift your entire back off the floor, as this will strain the back, and such a prolonged movement won't help in developing abdominal muscles six-pack faster. Once your shoulders lift off the ground, pause and hold that position for at least one second (or longer).
- You might feel the urge to pull your head forward (chin to chest), thinking it allows you to lift more, but it doesn't. This is a bad habit that increases the risk of injury. A good way to avoid this is to always look up at the ceiling.
- If you place your hands behind your head or neck, don’t bring your elbows together. Keep your elbows level with your shoulders. Keeping your arms close to your head will cause your head to bend forward.
- Exhale and tighten your abdominal muscles as you lift your shoulders.
- If you're learning How to Take a Punch, you can do what Muay Thai fighters do: have someone punch your stomach while your abs are tightened to absorb the blow.
Slowly lower your body as you inhale. Don’t just "drop" back down. The control you have while lowering also engages your abdominal muscles.
- Relax your abs before crunching again.
Reverse Crunch
Lie on your back on the floor. Place your hands on your stomach or rest your palms on the sides of your body.
Lift your feet off the ground. You can bend your knees at a 90-degree angle or extend your legs straight, with your feet pointing upwards.
Lift your hips off the ground using your abdominal muscles. Be careful not to push down with your hands, back, or head. If you can’t raise your hips using just your abs, you should practice with regular crunches first. Otherwise, you’re wasting effort as other parts of your body are doing the work instead of your abdominal muscles.
Other Variations
Oblique Crunches. Follow the regular crunch steps, but instead of lifting both shoulders straight off the floor, lift one shoulder diagonally towards the opposite side (left shoulder towards the right, and right shoulder towards the left). Alternate sides. This variation targets the oblique muscles (the muscles on the sides of your abdomen).
Side Crunches. Follow the regular crunch steps, but shift both legs to one side (keeping both knees bent and close together, near the floor). At the same time, lift both shoulders off the ground as you would in a regular crunch. Due to the torso twist, you will feel a twisting force in your side. Perform multiple crunches on one side, then switch your legs to the other side and repeat the movement for the opposite side.
Cable Crunches. Stand and grasp a cable. Pull the cable down by bending your back and engaging your abdominal muscles.
Tips
- Crunches are a simple and fun way to achieve a flat belly, with abs as firm as stone.
- Women naturally have more pronounced curves in the lower back compared to men due to their different pelvic bone structure. Since women tend to store more fat in the hips, their hips will naturally lift higher when lying on their back. Therefore, women should consider placing extra padding under their lower back when doing crunches instead of trying to force their lower back flat on the floor in an unnatural way. A simple method is to roll up a towel or use a pillow that fits under the lower back at the point of maximum curvature. Try rolling towels with varying thicknesses until you find the most comfortable fit.
Warnings
- Stop exercising if you experience pain in your lower back, as you may need to consult a physical therapist or orthopedic doctor for advice.
