Crunch
May 13th, 2023 1:19 PM Mr. Q Categories: Body Weight
Type:
ExerciseEquipment:
Body WeightThe crunch is a bodyweight exercise that targets the rectus abdominis muscle group. It involves lying on your back, bending your knees, and lifting your shoulders off the ground to contract your abs.
Stretch: Supine piriformis Quadriceps Knee to Chest
Warm-up: 5-10 minutes of light cardio such as jogging in place, jumping jacks, or cycling.
Proper Form:
- Lie on your back with your knees bent and feet flat on the floor.
- Place your hands behind your head with your elbows out to the sides.
- Contract your abs to lift your shoulders off the ground while keeping your lower back pressed into the floor.
- Exhale as you lift and inhale as you lower back down.
- Lower your shoulders back down to the ground before repeating.
Selecting Proper Weight: Since this is a bodyweight exercise, weight selection is not applicable.
How to Reduce Difficulty: If you find the exercise too difficult, you can place your hands on your chest instead of behind your head or perform a modified crunch by lifting only your head and shoulder blades off the ground.
How to Increase Difficulty: To increase the difficulty, you can hold a weight plate or dumbbell on your chest while performing the exercise, or perform the exercise on an unstable surface such as a stability ball.
Reps: Beginner: 10-12 reps Intermediate: 15-20 reps Advanced: 25-30 reps
Estimated Time: 1-2 minutes
Body Group:
Abs (Core)Muscle Group(s):
AbdominalsMuscles used:
Primary:
Rectus AbdominisSecondary:
N/ATertiary:
N/A