1. Inspiratory Muscle Strength Training in Infants With Congenital Heart Disease and Prolonged Mechanical Ventilation: A Case Report by Barbara K. Smith, Mark S. Bleiweis, Cimaron R. Neel, and A. Daniel Martin ptjournal Volume 93(2):229-236 February 1, 2013 © 2013 American Physical Therapy Association

2. Devices used to evaluate and train inspiratory muscle strength: (A) A unidirectional valve and respiratory monitor adapter was attached directly to the end of the endotracheal tube to measure maximal inspiratory pressure. Barbara K. Smith et al. PHYS THER 2013;93:229-236 © 2013 American Physical Therapy Association

3. Example of the pressure-time waveform generated during a 15-second inspiratory occlusion maneuver to evaluate maximal inspiratory pressure (MIP) in infant 2. Barbara K. Smith et al. PHYS THER 2013;93:229-236 © 2013 American Physical Therapy Association

4. Resting Breathing Pattern and Respiratory Mechanicsa. Barbara K. Smith et al. PHYS THER 2013;93:229-236 © 2013 American Physical Therapy Association

5. Inspiratory muscle performance of the infants: (A) maximal inspiratory pressure and (B) rate of inspiratory pressure development increased in both infants at the time of extubation. Barbara K. Smith et al. PHYS THER 2013;93:229-236 © 2013 American Physical Therapy Association