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Calories Burned with 300 Crunches Per Day

by
author image Andrea Cespedes
Andrea Cespedes is a professionally trained chef who has focused studies in nutrition. With more than 20 years of experience in the fitness industry, she coaches cycling and running and teaches Pilates and yoga. She is an American Council on Exercise-certified personal trainer, RYT-200 and has degrees from Princeton and Columbia University.
Calories Burned with 300 Crunches Per Day
Sorry, crunches just don't burn that many calories. Photo Credit Adobe Stock/lightwavemedia

Slow down there, Hercules! After 300 crunches, you might feel the burn in your abdominal muscles — but you probably haven't burned that many calories. The sad news is that crunches just aren't a big calorie-burner, particularly when compared to other physical activity.

However, if you're looking to build up a sweat and burn calories, cardiovascular activity that uses the large muscle groups to raise your heart rate is a much better use of your time.

Calories Burned Crunching

The average person completes about 30 crunches in one minute, meaning it'll take you about 10 minutes to complete your 300 crunches. Exactly how many calories you burn in this time depends on your size and the intensity of your crunches.

If you weigh 150 pounds and it's a moderate challenge to pump out your 300 crunches, expect to burn about 50 calories. Even if you work at an intense speed to get the exercises done and it takes half the time, you'll experience the same caloric burn. You just worked harder for five minutes.

Heavier, deconditioned people will burn more calories doing 300 crunches. If you weigh 250 pounds, for example, you'll burn 85 calories in 10 minutes of crunches working at a moderate intensity. If doing these crunches constitutes a vigorous intensity that leaves you sweaty and breathless, you'll burn approximately 150 calories in the 10 minutes.

Swimming is a great low-impact exercise and burns more calories than crunches.
Swimming is a great low-impact exercise and burns more calories than crunches. Photo Credit ViktorCap/iStock/Getty Images

Comparative Calorie Burns

The calories burned during 300 crunches is roughly equivalent to those burned in a 10-minute walk done at a 3 mph pace or 10 minutes of moderately intense jumping jacks. Running, cycling or swimming for 10 minutes burns significantly more calories.

A 150-pound person burns:

  • 69 calories in 10 minutes of moderately paced swimming
  • 114 calories in 10 minutes of running at 6 mph (a 10-minute mile)
  • 96 calories in 10 minutes of running at 5 mph (a 12-minute mile) 
  • 99 calories cycling at 12 mph

A 250-pound person burns:

  • 115 calories in 10 minutes of moderately paced swimming
  • 190calories in 10 minutes of running at 6 mph (a 10-minute mile) 
  • 160 calories in 10 minutes of running at 5 mph (a 12-minute mile)
  • 165 calories cycling at 12 mph

Read more: 13 Everyday Activities That Burn More Than 200 Calories

You may feel the burn, but you're not actually torching that many calories.
You may feel the burn, but you're not actually torching that many calories. Photo Credit LIVESTRONG.COM

Don't Crunch for the Caloric Burn

The extra calorie burn of crunches is nice, but it certainly isn't enough to bring about significant weight loss. You must create a caloric deficit of 3,500 calories to lose one pound.

Crunches strengthen the muscles of your middle — mostly the rectus abdominis, which forms the ridged six-pack envied by so many. The obliques at the sides of the waist assist each time you crunch. While working these muscles doesn't burn a lot of calories, it provides valuable strength to your core.

A Complete Core Routine

Augment crunches with other core moves to build a balanced, stable and strong middle. Do the following moves, in addition to a set of 10 to 20 crunches, as a circuit — one exercise after the other — with little rest to maximize calorie burn.

Keep your back rigid during plank.
Keep your back rigid during plank. Photo Credit LIVESTRONG.COM

1. Forearm Plank

Hold the top of a push-up position on your palms or forearms for 20 to 60 seconds at a time, to train the transverse abdominis. The transverse abdominis acts like a corset around your middle to make everything tighter and stronger.

Really twist your whole torso, not just your neck, during bicycle crunches.
Really twist your whole torso, not just your neck, during bicycle crunches. Photo Credit LIVESTRONG.COM

2. Bicycle Crunch

Lie on your back and lift your knees so your legs form a 90-degree angle at your hip and knee joints. With the hands gently resting behind the head, lift your torso and twist your right elbow to the left knee while you simultaneously extend the right leg. Repeat in the opposite direction to complete one repetition. Complete 10 to 20 total repetitions to target your obliques.

Avoid tilting your hips in bird dog.
Avoid tilting your hips in bird dog. Photo Credit LIVESTRONG.COM

3. Bird Dog

Position your body on all fours and extend your right arm forward, left leg back — then switch. This move helps strengthen the stabilizing muscles of your spine. Aim for 10 to 15 repetitions.

Read more: These 12 Moves Will Get You Washboard Abs

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