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Responses of distance runners and sprinters to exercise in a hot environment.
Aviat Space Environ Med. 1987 Oct; 58(10):948-53.AS

Abstract

The responses of highly trained distance runners and track sprinters and age-matched untrained men were compared during bicycle ergometry in a 40 degree temperature-controlled environmental chamber. There were no differences among groups in rectal temperature following the 90 min exercise bout. Distance runners had a lower heart rate than either sprinters or untrained subjects. There was no difference in heart rate between sprinters and untrained subjects. Distance runners and sprinters had a much greater sweat rate than untrained subjects and dissipated a greater proportion of their total heat load by evaporation of sweat. Sprinters, however, had a lower sweat rate than distance runners in the hot environment and could only maintain as low a skin temperature as distance runners for 75 min of the 90 min session. Both aerobic training and anaerobic training confer some degree of protection from heat injury during exercise in a hot environment. However, sprinters have a higher heart rate and cannot sustain a low skin temperature as long as distance runners. Sprinters lost their advantage over untrained subjects in skin temperature after 75 min of exercise in a hot environment and did not have a lower heart rate than untrained subjects. Distance runners had a significantly lower heart rate and maintained a lower skin temperature than untrained subjects for the entire 90 min exercise bout.

Authors+Show Affiliations

Biokinetics Research Laboratory, College of HPERD, Temple University, Philadelphia, Pennsylvania.

Pub Type(s)

Comparative Study
Journal Article

Language

eng

PubMed ID

3675466

Citation

Irion, G L.. "Responses of Distance Runners and Sprinters to Exercise in a Hot Environment." Aviation, Space, and Environmental Medicine, vol. 58, no. 10, 1987, pp. 948-53.
Irion GL. Responses of distance runners and sprinters to exercise in a hot environment. Aviat Space Environ Med. 1987;58(10):948-53.
Irion, G. L. (1987). Responses of distance runners and sprinters to exercise in a hot environment. Aviation, Space, and Environmental Medicine, 58(10), 948-53.
Irion GL. Responses of Distance Runners and Sprinters to Exercise in a Hot Environment. Aviat Space Environ Med. 1987;58(10):948-53. PubMed PMID: 3675466.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Responses of distance runners and sprinters to exercise in a hot environment. A1 - Irion,G L, PY - 1987/10/1/pubmed PY - 1987/10/1/medline PY - 1987/10/1/entrez SP - 948 EP - 53 JF - Aviation, space, and environmental medicine JO - Aviat Space Environ Med VL - 58 IS - 10 N2 - The responses of highly trained distance runners and track sprinters and age-matched untrained men were compared during bicycle ergometry in a 40 degree temperature-controlled environmental chamber. There were no differences among groups in rectal temperature following the 90 min exercise bout. Distance runners had a lower heart rate than either sprinters or untrained subjects. There was no difference in heart rate between sprinters and untrained subjects. Distance runners and sprinters had a much greater sweat rate than untrained subjects and dissipated a greater proportion of their total heat load by evaporation of sweat. Sprinters, however, had a lower sweat rate than distance runners in the hot environment and could only maintain as low a skin temperature as distance runners for 75 min of the 90 min session. Both aerobic training and anaerobic training confer some degree of protection from heat injury during exercise in a hot environment. However, sprinters have a higher heart rate and cannot sustain a low skin temperature as long as distance runners. Sprinters lost their advantage over untrained subjects in skin temperature after 75 min of exercise in a hot environment and did not have a lower heart rate than untrained subjects. Distance runners had a significantly lower heart rate and maintained a lower skin temperature than untrained subjects for the entire 90 min exercise bout. SN - 0095-6562 UR - https://www.unboundmedicine.com/medline/citation/3675466/Responses_of_distance_runners_and_sprinters_to_exercise_in_a_hot_environment_ DB - PRIME DP - Unbound Medicine ER -