| Intermittent exercise alters the heart rate-blood lactate relationship used for calculating the training impulse (TRIMP) in team sport players. | |
| | |
MedLine Citation:
|
PMID: 21237707 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
|
Objectives: The training impulse (TRIMP) quantifies training dose by weighting heart rate according to the relationship between fractional elevation in heart rate (ΔHR) and blood lactate concentration (BLa). This study compared the physiological responses to intermittent and continuous exercise and their influence on TRIMP weightings. Design: Repeated measures crossover. Method: Twelve team sport players undertook a vVO(2max) test and then a continuous trial (CT) and intermittent trial (IT) in a randomised order. Each trial consisted of 4×4min stages corresponding to 25%, 50%, 75% and 100% of vVO(2max). Trials were matched for distance and mean speed. Results: A repeated measures ANOVA revealed higher BLa for IT at 75% vVO(2max) (p=0.023) and 100% vVO(2max) (p=0.012); higher VO(2) for IT at 25% vVO(2max) (p<0.001); higher ΔHR for IT at 25% vVO(2max) (p<0.001), 75% vVO(2max) (p=0.03) and 100% vVO(2max) (p=0.018); higher TRIMP weightings for IT at 0.9 ΔHR (p=0.018) and 1.0 ΔHR (p=0.005). Conclusions: Intermittent exercise alters the ΔHR-BLa relationship and TRIMP weightings at high exercise intensities. Determination of the training impulse from the ΔHR-BLa relationship derived from a continuous exercise protocol may underestimate the exercise 'dose' of training and/or matches in team sport players. |
| | |
Authors:
|
Ibrahim Akubat; Grant Abt |
Related Documents
:
|
3136127 - Intrapulmonary oxygen consumption in experimental pneumococcal pneumonia. 9368277 - Determinants of oxygen uptake. implications for exercise testing. 11475477 - Brace modification improves aerobic performance in charcot-marie-tooth disease: a singl... 1989807 - The oxygen uptake-oxygen delivery relationship during icu interventions. 3698247 - Abnormal skeletal muscle bioenergetics during exercise in patients with heart failure: ... 11892367 - The relationship of lip strength and lip sealing in mft. |
Publication Detail:
|
Type: JOURNAL ARTICLE Date: 2011-1-13 |
Journal Detail:
|
Title: Journal of science and medicine in sport / Sports Medicine Australia Volume: - ISSN: 1878-1861 ISO Abbreviation: - Publication Date: 2011 Jan |
Date Detail:
|
Created Date: 2011-1-17 Completed Date: - Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 9812598 Medline TA: J Sci Med Sport Country: - |
Other Details:
|
Languages: ENG Pagination: - Citation Subset: - |
Copyright Information:
|
Copyright © 2010 Sports Medicine Australia. Published by Elsevier Ltd. All rights reserved. |
Affiliation:
|
Department of Sport, Health and Exercise Science, The University of Hull, UK. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
|
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Behavioral sleep disturbances in children clinically referred for evaluation of obstructive sleep ap...
Next Document: Effects of soft and semi-rigid ankle orthoses on postural sway in people with and without functional...