Use APKPure App
Get Crunches Exercises old version APK for Android
Apprenez à faire des redressements: les erreurs que tout le monde fait!
"Learn How to Do Crunches: Mistakes Everyone Makes!
Follow these steps to Performing the basic crunch.
The basic crunch is the consummate abdominal exercise in a strength training program.
Pay special attention to your form when you do crunches, especially if you have lower back or neck problems.
Crunches or abdominal crunches work the rectus abdominis muscle in the midsection of your body. Ab curls may also engage the external or internal oblique muscles, especially when rotation is added to the movement.
Abdominal crunches are an effective way to strengthen the front of your torso or core region of your body."