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- Title
Test–Retest Reliability of Respiratory Resistance Measured With the Airflow Perturbation Device.
- Authors
Gallena, Sally K.; Pearl Solomon, Nancy; Johnson, Arthur T.; Vossoughi, Jafar; Wei Tian
- Abstract
Purpose: In this study, the authors aimed to determine reliability of the airflow perturbation device (APD) to measure respiratory resistance within and across sessions during resting tidal (RTB) and postexercise breathing in healthy athletes, and during RTB across trials within a session in athletes with paradoxical vocal fold motion (PVFM) disorder. Method: Prospective, repeated-measures design. The APD measured respiratory resistance during 3 baseline assessments in 24 teenage female athletes, 12 with and 12 without PVFM. Control athletes provided data at rest and following a customized exercise challenge during each of 3 sessions. Intraclass correlation coefficient (ICC) analysis assessed strength of relationships, and repeated-measures analysis of variance assessed differences across trials and sessions. Results: ICC analyses confirmed strong correlations across RTB trials for inspiratory, expiratory, and mean respiratory resistance in both groups. Inspiratory resistance decreased ~5% between sessions for control participants; expiratory and mean respiratory resistances were stable. Data from control athletes across sessions and following rigorous exercise were strongly correlated when taken at comparable intervals. Conclusions: APD-measured respiratory resistance, including separate assessments for the inspiratory and expiratory phases, has strong test–retest reliability during RTB and after exercising. This suggests that the APD is a useful measurement tool for the assessment of airway function in patients suspected of having PVFM.
- Subjects
AIRWAY (Anatomy); PULMONARY function tests; CONFIDENCE intervals; EXERCISE physiology; EXPERIMENTAL design; HEART beat; PROBABILITY theory; RESEARCH funding; RESPIRATORY measurements; STATISTICS; VOCAL cords; WOMEN athletes; PRE-tests &; post-tests; INTER-observer reliability; REPEATED measures design; RESEARCH methodology evaluation; DESCRIPTIVE statistics; EQUIPMENT &; supplies
- Publication
Journal of Speech, Language & Hearing Research, 2014, Vol 57, Issue 4, p1323
- ISSN
1092-4388
- Publication type
Article
- DOI
10.1044/2014_JSLHR-S-13-0246