Crunch
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Basics:
https://fr.wikipedia.org/wiki/Crunch_(musculation)
http://www.changersoncorps.com/exercices-pour-les-abdos-comment-muscler-vos-abdominaux-correctement/
Links:
http://www.personal-sport-trainer.com/blog/crunch-exercice-abdominaux/
http://www.fitstep.com/Library/Exercises/Crunches.htm
Category
:
Calisthenics
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