Side Crunch: Video Guide, Form Tips & How-To

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Side Crunch Overview

The side crunch works your obliques. Your obliques are the muscles on the sides of your waist. Your other ab muscles help too. You need no equipment. You just lie on your side on the floor. You crunch your upper body toward your hip. The side crunch is easy for beginners to learn. It targets the sides of your core. Strong obliques help you twist, bend, and stay stable. They also support your lower back. You can do this move at home with no gear. Add it to your core routine any day of the week.

What Is The Point of the Side Crunch?

Side crunches target your obliques and build a stronger core. They help create that defined waistline while improving stability for daily activities.

How To Do The Side Crunch

  1. Lie on your side. Bend your knees a little.
  2. Rest your bottom arm on the floor to support your head.
  3. Put your top hand behind your head or across your chest.
  4. Pull your belly in a little. Get ready to crunch.
  5. Breathe out. Squeeze your obliques and lift your upper body toward your hip.
  6. Lift your shoulder off the floor in the side crunch.
  7. Hold at the top for one second. Feel the side of your waist work.
  8. Breathe in. Lower back down slow and smooth.
  9. Do 12 to 20 reps. Then roll over and switch sides.

Side Crunch Form Tips

  1. Lift by squeezing your obliques, not by pulling your neck.
  2. Keep your top hand light behind your head.
  3. Crunch up and slightly toward your hip.
  4. Move slow. Take about 2 seconds up.
  5. Hold the top for one second and squeeze.
  6. Lower slow. Do not flop back down.
  7. Keep your hips still on the floor.
  8. Breathe out as you lift. Breathe in as you lower.
  9. Keep your neck in line with your spine.

Common Mistakes to Avoid for the Side Crunch

  1. Pulling your head with your hand. This strains your neck. Let your obliques do the lifting.
  2. Going too fast. Fast reps use bounce, not muscle. Crunch slow and squeeze.
  3. Lifting too little. A tiny move skips the work. Lift your shoulder off the floor.
  4. Rolling your hips. This turns off your obliques. Keep your hips still.
  5. Flopping back down. This wastes the lowering. Lower with control.
  6. Holding your breath. This makes you strain. Breathe out as you crunch.
  7. Skipping the top squeeze. The one second hold builds the muscle. Do not rush it.
  8. Using your arm to swing up. Momentum steals the work. Move only with your core.
  9. Doing it on a hard floor. This hurts your hip. Use a soft mat.
  10. Uneven sides. One side gets weaker. Match your reps on each side.

Side Crunch Workout Tips

  1. Feel the side of your waist squeeze on each rep.
  2. Hold the top for a slow count of one. That squeeze counts.
  3. Lower slow. A slow drop works the muscle more.
  4. Keep your hand light behind your head. Never yank your neck.
  5. Do 12 to 20 reps for 2 to 3 sets per side.
  6. Match both sides so your waist stays even.
  7. Add this move to the end of any core workout.
  8. Try holding a light weight on your chest for a harder set.
  9. Pause at the top for two seconds to make it tougher.
  10. Move slow. Control beats speed here.
  11. Breathe out fully at the top to squeeze harder.
  12. Keep your reps smooth even when you get tired.
  13. Push a little past the burn on your last few reps.
  14. If your neck gets tired, cross both arms on your chest.
  15. Be patient. A strong core takes weeks of steady work.

Train Obliques With Your AI Trainer

  1. Go to the iOS App Store and search "GetFit AI: AI Fitness Trainer" or tap the button below to do the side crunch exercise on the app
  2. Download the app 📲
  3. Complete the quiz to build a custom AI workout plan 🤖
  4. Choose a trainer or build a custom plan targeting your obliques 💪
  5. Stay consistent, chat with your AI trainer anytime, and compete with friends to stay motivated 🏆

Weight & 1 Rep Max Calculator for the Side Crunch Exercise

Average Side Crunch standards by male, female, weight, age and height

Use this calculator to estimate a smart starting weight and one rep max for the Side Crunch. Treat it as your starting line. Your GetFit AI trainer fine-tunes the exact weights as you train.

Enter your stats to calculate your Reps & Weight
How is this calculated?

Estimates start from a percentage of your body weight for this movement pattern and equipment, adjusted for gender, age, and height. One rep max is projected from the 8-rep weight using the Epley formula. Every lifter is different, so use these as a conservative starting point, not a target.

Beginner8 reps 45 lbs
1 Rep Max55 lbs
Intermediate8 reps 55 lbs
1 Rep Max70 lbs
Advanced8 reps 70 lbs
1 Rep Max90 lbs

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