| High anaerobic energy release during submaximal arm exercise. | |
| | |
MedLine Citation:
|
PMID: 8435979 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
The anaerobic energy release during submaximal arm (AE) and leg exercise (LE) has been estimated from O2 deficit measured at the onset of exercise. Eight male subjects were studied during 8-10 min of arm or leg cycling at the same relative workload (53% of the peak exercise-induced increase in pulmonary oxygen uptake, VO2). The workloads were 78 +/- 4 W during AE and 173 +/- 11 W during LE and VO2 was 1.51 +/- 0.06 1 min-1 for AE and 2.33 +/- 0.15 1 min-1 for LE. The half-time of the VO2 on-response was considerably longer (P < 0.01) during AE (62 +/- 9 s) than during LE (33 +/- 4 s) and the peak blood lactate concentration was higher (P < 0.05) during AE (4.8 +/- 0.5 mmol.l-1) than during LE (3.5 +/- 0.4 mmol.l-1). Oxygen deficit was 1.64 +/- 0.16 and 1.78 +/- 0.16 1 for AE and LE respectively. Oxygen deficit was higher during AE than during LE when related to absolute workload (P < 0.01), or to VO2 at steady state (P < 0.001) or to limb volume (P < 0.001). The proportion of the total energy demand covered by anaerobic energy release at the onset of exercise (0-8 min) was about 54% higher (P < 0.01) during AE than during LE. It is concluded that the energy release to a greater extend is covered by anaerobic processes during AE than during LE. |
| | |
Authors:
|
M Jensen-Urstad; I Hallbäck; K Sahlin |
Related Documents
:
|
12797839 - Regression to the mean. a threat to exercise science? 6816129 - Anaerobic threshold for long-term exercise and maximal exercise performance. 8725489 - Oxygen intake efficiency slope: a new index of cardiorespiratory functional reserve der... 3628489 - Effects of wheelchair design on metabolic and heart rate responses during propulsion by... 8375359 - Noninvasive measurement of human forearm oxygen consumption by near infrared spectroscopy. 6662759 - Ventilatory thresholds during short- and long-term exercise. 20630439 - Ergometric performance during exercise training in men with intermittent claudication. 7386219 - Terodiline inhibition of human bladder contraction. effects in vitro and in women with ... 13059 - Ph effects on lactate and excess lactate in relation to o2 deficit in hypoxic dogs. |
Publication Detail:
|
Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
|
Title: Clinical physiology (Oxford, England) Volume: 13 ISSN: 0144-5979 ISO Abbreviation: Clin Physiol Publication Date: 1993 Jan |
Date Detail:
|
Created Date: 1993-03-19 Completed Date: 1993-03-19 Revised Date: 2006-11-15 |
Medline Journal Info:
|
Nlm Unique ID: 8309768 Medline TA: Clin Physiol Country: ENGLAND |
Other Details:
|
Languages: eng Pagination: 81-7 Citation Subset: IM |
Affiliation:
|
Department of Clinical Physiology, Södersjukhuset, Stockholm, Sweden. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Adult Anaerobiosis Arm / physiology* Energy Metabolism / physiology* Exercise / physiology* Heart Rate / physiology Humans Lactates / blood Leg / physiology Male Oxygen Consumption / physiology |
| Chemical | |
Reg. No./Substance:
|
0/Lactates |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Heart-rate variation: what are we measuring?
Next Document: Accuracy and repeatability of a pocket turbine spirometer: comparison with a rolling seal flow-volum...