Heart-rate deflection point and the second heart-rate variability threshold during running exercise in trained boys

Details

Serval ID
serval:BIB_30D9C027AFBA
Type
Article: article from journal or magazin.
Collection
Publications
Title
Heart-rate deflection point and the second heart-rate variability threshold during running exercise in trained boys
Journal
Pediatric Exercise Science
Author(s)
Buchheit M., Solano R., Millet G.P.
ISSN
0899-8493
Publication state
Published
Issued date
05/2007
Peer-reviewed
Oui
Volume
19
Number
2
Pages
192-204
Language
english
Abstract
The aim of the present investigation was to compare the accuracy of the heart-rate (HR) deflection point (HRDP) and the second HR variability threshold (HRVTh2) to predict anaerobic threshold in boys. HRDP was determined from slope trends of successive linear regressions. HRVTh2 was determined from the high frequency's peak and power-density trends. The second ventilatory threshold (VTh2) corresponding to the first decrease in PETCO2, with an increase in VE /VCO2, was used as the reference measure of AnT. Results show that VO2 and HR were similar at HRDP, HRVTh2, and VTh2. HRVTh2 and HRDP were highly correlated. It appears that HRVTh2 is a good alternative to HRDP for assessing anaerobic threshold. HRVTh2 and HRDP might rely on similar mechanisms.
Keywords
Adolescent, Anaerobic Threshold/physiology, Child, Exercise Test, Heart Rate/physiology, Humans, Male, Monitoring, Ambulatory, Oxygen Consumption/physiology, Physical Exertion/physiology, Running/physiology
Pubmed
Web of science
Create date
25/09/2008 8:01
Last modification date
20/08/2019 13:15
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