![When doing abdominal crunches, should I place my arms across my chest or behind my head? - Physical Fitness Stack Exchange When doing abdominal crunches, should I place my arms across my chest or behind my head? - Physical Fitness Stack Exchange](https://i.stack.imgur.com/zrk9f.png)
When doing abdominal crunches, should I place my arms across my chest or behind my head? - Physical Fitness Stack Exchange
![Cross Arm Crunch | Fitwirr.com | Flatten your tummy and lose muffin tops! | Do 8-10 reps for 3 sets. Cross Arm Crunch | Fitwirr.com | Flatten your tummy and lose muffin tops! | Do 8-10 reps for 3 sets.](https://i.pinimg.com/736x/b4/96/64/b49664480767cae84de65c82f2d5182e.jpg)
Cross Arm Crunch | Fitwirr.com | Flatten your tummy and lose muffin tops! | Do 8-10 reps for 3 sets.
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![Smiling Young Black Woman Doing Twist Crunches Exercise Stock Image - Image of motivation, movement: 223499863 Smiling Young Black Woman Doing Twist Crunches Exercise Stock Image - Image of motivation, movement: 223499863](https://thumbs.dreamstime.com/z/smiling-young-black-woman-doing-twist-crunches-exercise-confident-abs-exercises-floor-yoga-mat-lady-cross-body-knee-to-elbow-223499863.jpg)