F. Al-Bilbeisi

Respiratory muscle strength training with nonrespiratory maneuvers.

V. DePalo, A. Parker, F. McCool, 2004, Journal of applied physiology.

Diaphragm recruitment during nonrespiratory activities.

F. McCool, F. Al-Bilbeisi, Fadi Al-Bilbeisi, 2000, American journal of respiratory and critical care medicine.