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Can You Simulate Cable Crunches With Dumbbells?

author image Henry Halse
Henry Halse is a Philadelphia-based personal trainer, speaker, and writer. He's trained a wide variety of people, from couch potatoes to professional athletes, and helped them realize their own strength, determination and self-confidence. Henry has also written for various fitness and lifestyle publications, including Women’s Health, AskMen and Prevention.
Can You Simulate Cable Crunches With Dumbbells?
Can You Simulate Cable Crunches With Dumbbells? Photo Credit: hkt83000/iStock/Getty Images

Cable crunches are safe and effective, making them a mainstay exercise at the gym. The advantage of using cables is that they are constantly providing tension because they can pull in different directions that free weights, which can only pull down. Cables also allow you to add weight safely to your exercise. Because the cable is fixed along a certain path, it is less predictable than a free weight.

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If you don't have access to a cable machine, however, you can still reap the benefits of the cable crunch by using a pair of dumbbells. With proper form, you can recreate the constant resistance on your abs that a cable machine provides for an equally challenging ab workout.

How to Do It

Step 1

Lie on your back on a bench and a dumbbell in each hand. Use a raised surface, like a bench, because your arms will need to go lower than the rest of your body.

Step 2

Raise your legs up, with your knees bent, so that your thighs are perpendicular to the ground and your knees are bent at a 90-degree angle.

Step 3

Reach your arms over your head so that your biceps are next to your ears. Allow your elbows to bend slightly so that the dumbbell is below the bench.

Step 4

Perform a crunch from this position, curling your head, shoulders, and neck off of the bench and rolling up towards your knees. Curl up until your head and upper back are off of the bench. As you curl up, keep your arms in the same overhead position as step three. They should move in sync with your head, neck and body during this exercise.

Read More: Why Do High Repetitions Cause Muscle Definition?

How Many Reps and Sets?

Start with at least ten repetitions to ensure that you are getting enough repetitions to learn the movement. Two to three sets is enough, especially if you are new to this exercise. A comprehensive study from the Journal of Strength and Conditioning revealed that performing two to three sets of an exercise is much better than one set, but around the same as performing four to six sets. In other words, two to three sets will provide a lot of benefit but doing more than that won't provide much more benefit. Stick to two to three sets and if your results start to slow down gradually add one set at a time.

How Much Weight?

Aim for a weight that you can do three sets of 10 repetitions with. There is nothing particularly special about that number; it simply means that you are using enough weight for the exercise to be challenging but the weight is light enough that you can concentrate on form. Over time, you can decrease the weight if you want to do more sets and repetitions or increase the weight to make the exercise more challenging.

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