| Investigating performance and lung function in a hot, humid and ozone-polluted environment. | |
| | |
MedLine Citation:
|
PMID: 20449752 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
Large urbanized areas, where sports events take place, have a polluted environment and can also reach high temperatures and humidity levels. The aim of this study was to investigate the impact of a hot, humid and ozone-polluted (O(3)) environment on (1) performance of an 8 km time trial run, (2) pulmonary function, and (3) subjective respiratory symptoms in endurance-trained runners. Using crossover randomized design, 10 male participants (mean V(O)₂(max)= 64.4 mlO(2) kg(-1) min(-1), SD = 4.4) took part in a time trial run under four different conditions: 20 degrees C + 50% relative humidity (rh) (Control), 20 degrees C + 50% rh + 0.10 ppm O(3) (Control + O(3)), 31 degrees C + 70% rh (Heat), 31 degrees C + 70% rh + 0.10 ppm O(3) (Heat + O(3)). Heart rate, ratings of perceived exertion and minute ventilation were collected during the run. Lung function was measured pre and post-exercise. The runners completed a respiratory symptoms questionnaire after each trial. The completion time of both the Heat (32 min 35 s) and Heat + O(3) (33 min 09 s) trials were significantly higher (P < 0.0001) when compared to the Control + O(3) (30 min 27 s) and Control (30 min 15 s) trials. There were no significant changes between pre/post lung function measures or between trials. The effective dose of ozone simulated in the present study did not affect the performance and therefore, ozone-pollution, at an environmentally relevant concentration, did not compound the impairment in performance beyond that induced by a hot, humid environment. |
| | |
Authors:
|
Elisa Couto Gomes; Vicki Stone; Geraint Florida-James |
Publication Detail:
|
Type: Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't Date: 2010-05-07 |
Journal Detail:
|
Title: European journal of applied physiology Volume: 110 ISSN: 1439-6327 ISO Abbreviation: Eur. J. Appl. Physiol. Publication Date: 2010 Sep |
Date Detail:
|
Created Date: 2010-08-12 Completed Date: 2010-12-13 Revised Date: 2011-01-13 |
Medline Journal Info:
|
Nlm Unique ID: 100954790 Medline TA: Eur J Appl Physiol Country: Germany |
Other Details:
|
Languages: eng Pagination: 199-205 Citation Subset: IM |
Affiliation:
|
Biomedicine and Sports Science Research Group, Edinburgh Napier University, Merchiston Campus, 10 Colinton Road, Edinburgh, EH10 5DT, UK. elisacoutogomes@gmail.com |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Adolescent Adult Air Pollutants / adverse effects* Cross-Over Studies Forced Expiratory Volume Heart Rate Hot Temperature* Humans Humidity* Male Maximal Midexpiratory Flow Rate Ozone / adverse effects* Peak Expiratory Flow Rate Perception Physical Endurance* Pulmonary Ventilation* Questionnaires Respiratory Function Tests Running* Vital Capacity Young Adult |
| Chemical | |
Reg. No./Substance:
|
0/Air Pollutants; 10028-15-6/Ozone |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Comparison of post-mortem metabolic changes in sheep brain tissue in isolated heads and whole animal...
Next Document: The patterns of mutation and amplification of Plasmodium falciparum pfcrt and pfmdr1 genes in Thaila...