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Scuba Forum
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What’s the difference and how can one know they are doing it correctly
#12178
Eric_R
- 3/25/2015 2:54 PM
Your diaphragm does the most for your breathing. It has to contract and expand for breathing to take place. Your abdominal muscles can contribute to breathing force but your chest muscles are going to have to break some ribs to have any affect.
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