Respiratory Muscle Strength and Function in Healthy Kids
|Respiratory Muscle Strength|
|Study Design:||Observational Model: Ecologic or Community
Time Perspective: Prospective
|Official Title:||Respiratory Muscle Strength and Function in Healthy Children|
- Pulmonary Function Testing [ Time Frame: Day 1 ]Subjects will complete tidal flow-volume assessments and forced expiratory maneuvers.
|Study Start Date:||April 2011|
|Study Completion Date:||September 2014|
|Primary Completion Date:||August 2014 (Final data collection date for primary outcome measure)|
Children will undergo one session of pulmonary function and strength testing
The goals of this study are to collect and evaluate respiratory muscle strength training (RMST) induced changes in ventilatory function in healthy children. Children will undergo one session of pulmonary function and strength testing to quantify rate of inspiratory and expiratory pressure development and to determine whether inspiratory and expiratory pressure correlate to maximal respiratory pressures and forced pulmonary function tests. Currently normal pressure-flow-timing responses are not well-characterized in healthy children. The purpose of this study is to help develop more efficient RMST exercise prescriptions for ill children on ventilators and with neuromuscular weakness.
Participants in the study will refrain from caffeine products and exercise on the day of respiratory testing. In conjunction with respiratory testing, baseline and exertional blood pressure, heart and respiratory rate, and pulse oximetry will be monitored. Participants will complete tidal flow-volume assessments and forced expiratory maneuvers according to the AMerican Thoracic Society guidelines. Participants will undergo 5 sets of 10 maximal-effort breaths against standardized resistances (one set each at 0, 5, 10, 15, and 20 cm H20). Following each set, subjects will rate the load magnitude and their feelings of breathing discomfort using a 0-10 visual analog scale. Participants will also perform maximal inspiratory and expiratory pressure maneuvers. All tests will be separated by at least 2-3 minutes of rest.
Please refer to this study by its ClinicalTrials.gov identifier: NCT01436318
|United States, Florida|
|University of Florida|
|Gainesville, Florida, United States, 32610|
|Principal Investigator:||Barbara K Smith, PT, PhD||University of Florida|