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Measurement accuracy of heart rate and respiratory rate during graded exercise and sustained exercise in the heat using the Zephyr BioHarness(TM).

Authors
Kim-J-H; Roberge-R; Powell-JB; Shafer-AB; Williams-WJ
Source
Int J Sports Med 2013 Jun; 34(6):497-501
NIOSHTIC No.
20042718
Abstract
The Zephyr BioHarness(TM) was tested to determine the accuracy of heart rate (HR) and respiratory rate (RR) measurements during 2 exercise protocols in conjunction with either a laboratory metabolic cart (Vmax) or a previously validated portable metabolic system (K4b 2 ). In one protocol, HR and RR were measured using the BioHarness and Vmax during a graded exercise up to V . O 2max (n = 12). In another protocol, HR and RR were measured using the BH and K4b 2 during sustained exercise (30 % and 50 % V . O 2max for 20 min each) in a hot environment (30 C, 50 % relative humidity) (n = 6). During the graded exercise, HR but not RR, obtained from the BioHarness was higher compared to the Vmax at baseline and 30 % V . O 2max (p < 0.05), but showed no significant difference at other stages with high correlation coefficients for both HR (r = 0.87-0.96) and RR (r = 0.90-0.99 above 30 % V . O 2max ). During the exercise in the heat, there were no significant differences between the BioHarness and K4b 2 system. Correlation coefficients between the methods were low for HR but moderately to highly correlated (0.49-0.99) for RR. In conclusion, the BioHarness is comparable to Vmax and K4b 2 over a wide range of V . O 2 during graded exercise and sustained exercise in the heat.
Keywords
Laboratory-testing; Testing-equipment; Heat; Heat-production; Heart-rate; Respiration; Breathing; Physical-exercise; Metabolic-rate; Metabolic-study; Body-temperature; Analytical-instruments; Equipment-reliability; Hot-environments; Psychological-responses; Psychological-testing; Monitoring-systems; Author Keywords: physiological monitoring; portable metabolic system; reliability
Contact
Dr. W. Jon Williams, NIOSH/CDC Technology Research Branch, 626 Cochrans Mill Road 15236 Pittsburgh, PA 15236 USA
CODEN
IJSMDA
Publication Date
20130601
Document Type
Journal Article
Fiscal Year
2013
NTIS Accession No.
NTIS Price
Identifying No.
B20130625
Issue of Publication
6
ISSN
0172-4622
NIOSH Division
NPPTL
Source Name
International Journal of Sports Medicine
State
PA
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