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ERIC Number: EJ948182
Record Type: Journal
Publication Date: 2011
Pages: 8
Abstractor: As Provided
Reference Count: 21
ISSN: ISSN-1091-367X
Reliability and Validity of the Zephyr[TM] BioHarness[TM] to Measure Respiratory Responses to Exercise
Hailstone, Jono; Kilding, Andrew E.
Measurement in Physical Education and Exercise Science, v15 n4 p293-300 2011
The Zephyr[TM] BioHarness[TM] (Zephyr Technology, Auckland, New Zealand) is a wireless physiological monitoring system that has the ability to measure respiratory rate unobtrusively. However, the ability of the BioHarness[TM] to accurately and reproducibly determine respiratory rate across a range of intensities is currently unknown. The aim of this study was to determine the reliability and validity of the BioHarness[TM] to measure respiratory rate. Twelve physically active participants attended the laboratory on two separate occasions to perform an incremental treadmill test to volitional exhaustion. Respiratory rate (br.min[superscript -1]) was measured continuously and simultaneously during both trials using both a Metamax 3b online gas-analysis system (Cortex, Leipzig, Germany) and the BioHarness[TM]. The mean respiratory rate measured by the Metamax 3b and BioHarness[TM] did not differ statistically (p less than 0.05) for most speeds, except for 70% of peak treadmill speed (p = 0.039). Mean absolute differences were small (2 to 3 br.min[superscript -1]; typical error = 4.4%-8.7%). The typical errors for the test 1 versus the test 2 comparisons for respiratory rate ranged from 1.4 to 2.8 br.min[superscript -1] (typical error % = 4.3-7.3) for the BioHarness[TM]. There were no significant differences between devices for the absolute respiratory rate, speed, and percent of respiratory rate maximum at the respiratory breakpoint (p greater than 0.05). The BioHarness[TM] is a valid and reliable device for determining respiratory rate and the respiratory breakpoint during exercise of varying intensity. (Contains 2 figures and 3 tables.)
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Publication Type: Journal Articles; Reports - Evaluative
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Identifiers - Location: New Zealand