Hold on!
Warning: this link might be unsafe, please double check the link before you proceed.
https://www.researchgate.net/publication/278249048_Diaphragmatic_Breathing_The_Foundation_of_Core_Stability
Warning: this link might be unsafe, please double check the link before you proceed.
https://www.researchgate.net/publication/278249048_Diaphragmatic_Breathing_The_Foundation_of_Core_Stability