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Metabolic and cardiorespiratory responses in young oarsmen during prolonged exercise tests on a rowing ergometer at power outputs corresponding to two concepts of anaerobic threshold

Jan Bourgois UGent and Jacques Vrijens (1998) EUROPEAN JOURNAL OF APPLIED PHYSIOLOGY AND OCCUPATIONAL PHYSIOLOGY. 77(1-2). p.164-169
abstract
A group of ten young experienced oarsmen [mean age 17.5 (SD 1.7) years, height 182.5 (SD 5.9) cm, body mass 77.0 (SEM 10.6) kg] exercised in a progressive incremental test (PIE: 50 W - 3 min(-1)) on a rowing ergometer to determine the power output corresponding to the 4 mmol lactate . l(-1) anaerobic threshold (AT(4)) and the individual anaerobic threshold (IAT). Within 10 days they performed at random two 30-min prolonged exercise tests (PET) at power outputs corresponding to AT(4) and IAT to demonstrate whether or not a steady-state blood lactate concentration [La-](b) could be maintained. Oxygen uptake ((V) over dot O-2), heart rate (HR) and [La-](b) were measured. The PIE revealed significant lower values at IAT compared to AT(4) for power output (P < 0.01), HR (P < 0.01) and (V) over dot O-2 (P < 0.01). Coefficients of correlation between AT(4) and IAT were 0.68 for power output, 0.79 for HR and 0.70 for (V) over dot O-2. All the subjects could complete the PET at IAT and only six out of the ten at AT(4). The [La-](b) at the end of PET was significantly higher at AT(4) compared to IAT (P < 0.01). Similar results were found (V) over dot O-2 (P < 0.01) and for HR (P < 0.01). A steady state of mean blood lactate concentration ([La-](ss) was found only for the power output at IAT. From the results of this study, we concluded that both concepts of anaerobic threshold gave different information about submaximal endurance capacity. Only IAT represented on average [La-](ss). It is suggested that more research is needed to elicit optimal guidelines for the intensity of endurance training.
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (original)
publication status
published
subject
keyword
incremental exercise test, anaerobic threshold, prolonged exercise test, metabolic and cardiorespiratory responses, LACTATE STEADY-STATE, BLOOD LACTATE, RECOVERY
journal title
EUROPEAN JOURNAL OF APPLIED PHYSIOLOGY AND OCCUPATIONAL PHYSIOLOGY
Eur. J. Appl. Physiol. Occup. Physiol.
volume
77
issue
1-2
pages
164 - 169
Web of Science type
Article
Web of Science id
000071009500024
ISSN
0301-5548
DOI
10.1007/s004210050315
language
English
UGent publication?
yes
classification
A1
copyright statement
I have transferred the copyright for this publication to the publisher
id
175877
handle
http://hdl.handle.net/1854/LU-175877
date created
2004-01-14 13:40:00
date last changed
2016-12-19 15:38:59
@article{175877,
  abstract     = {A group of ten young experienced oarsmen [mean age 17.5 (SD 1.7) years, height 182.5 (SD 5.9) cm, body mass 77.0 (SEM 10.6) kg] exercised in a progressive incremental test (PIE: 50 W - 3 min(-1)) on a rowing ergometer to determine the power output corresponding to the 4 mmol lactate . l(-1) anaerobic threshold (AT(4)) and the individual anaerobic threshold (IAT). Within 10 days they performed at random two 30-min prolonged exercise tests (PET) at power outputs corresponding to AT(4) and IAT to demonstrate whether or not a steady-state blood lactate concentration [La-](b) could be maintained. Oxygen uptake ((V) over dot O-2), heart rate (HR) and [La-](b) were measured. The PIE revealed significant lower values at IAT compared to AT(4) for power output (P {\textlangle} 0.01), HR (P {\textlangle} 0.01) and (V) over dot O-2 (P {\textlangle} 0.01). Coefficients of correlation between AT(4) and IAT were 0.68 for power output, 0.79 for HR and 0.70 for (V) over dot O-2. All the subjects could complete the PET at IAT and only six out of the ten at AT(4). The [La-](b) at the end of PET was significantly higher at AT(4) compared to IAT (P {\textlangle} 0.01). Similar results were found (V) over dot O-2 (P {\textlangle} 0.01) and for HR (P {\textlangle} 0.01). A steady state of mean blood lactate concentration ([La-](ss) was found only for the power output at IAT. From the results of this study, we concluded that both concepts of anaerobic threshold gave different information about submaximal endurance capacity. Only IAT represented on average [La-](ss). It is suggested that more research is needed to elicit optimal guidelines for the intensity of endurance training.},
  author       = {Bourgois, Jan and Vrijens, Jacques},
  issn         = {0301-5548},
  journal      = {EUROPEAN JOURNAL OF APPLIED PHYSIOLOGY AND OCCUPATIONAL PHYSIOLOGY},
  keyword      = {incremental exercise test,anaerobic threshold,prolonged exercise test,metabolic and cardiorespiratory responses,LACTATE STEADY-STATE,BLOOD LACTATE,RECOVERY},
  language     = {eng},
  number       = {1-2},
  pages        = {164--169},
  title        = {Metabolic and cardiorespiratory responses in young oarsmen during prolonged exercise tests on a rowing ergometer at power outputs corresponding to two concepts of anaerobic threshold},
  url          = {http://dx.doi.org/10.1007/s004210050315},
  volume       = {77},
  year         = {1998},
}

Chicago
Bourgois, Jan, and Jacques Vrijens. 1998. “Metabolic and Cardiorespiratory Responses in Young Oarsmen During Prolonged Exercise Tests on a Rowing Ergometer at Power Outputs Corresponding to Two Concepts of Anaerobic Threshold.” European Journal of Applied Physiology and Occupational Physiology 77 (1-2): 164–169.
APA
Bourgois, J., & Vrijens, J. (1998). Metabolic and cardiorespiratory responses in young oarsmen during prolonged exercise tests on a rowing ergometer at power outputs corresponding to two concepts of anaerobic threshold. EUROPEAN JOURNAL OF APPLIED PHYSIOLOGY AND OCCUPATIONAL PHYSIOLOGY, 77(1-2), 164–169.
Vancouver
1.
Bourgois J, Vrijens J. Metabolic and cardiorespiratory responses in young oarsmen during prolonged exercise tests on a rowing ergometer at power outputs corresponding to two concepts of anaerobic threshold. EUROPEAN JOURNAL OF APPLIED PHYSIOLOGY AND OCCUPATIONAL PHYSIOLOGY. 1998;77(1-2):164–9.
MLA
Bourgois, Jan, and Jacques Vrijens. “Metabolic and Cardiorespiratory Responses in Young Oarsmen During Prolonged Exercise Tests on a Rowing Ergometer at Power Outputs Corresponding to Two Concepts of Anaerobic Threshold.” EUROPEAN JOURNAL OF APPLIED PHYSIOLOGY AND OCCUPATIONAL PHYSIOLOGY 77.1-2 (1998): 164–169. Print.