Effect of Ice Cooling Jacket on Cardiovascular Responses to Treadmill Exercise in Untrained adults.
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Date
2015
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The Library and Publications Committee, University of Ilorin
Abstract
Hyperthermia has been shown to be a limiting factor to endurance exercise performance while pre-cooling combats the debilitating effect of heat stress induced fatigue. Most studies demonstrated attenuated heart rate response during endurance exercise after pre-cooling, none of these examined blood pressure changes. Therefore, the objective of this study is to recognize, quantify, and compare changes that may occur in blood pressures and heart rate after pre-cooling (wearing of ice jacket) following treadmill exercise. Twelve (n=12) healthy nonathletic young male adults volunteered after obtaining written consent. Mean ± S.E.M age, weight, height and B.M.I were 22.0±0.8 years, 60±3.0 kg, 1.7±0.2 m, and 21.0±1.0 kg/m2. Day 1, participants performed treadmill exercise to exhaustion (Bruce protocol). Two readings of blood pressures and heart rates were taken before, at exhaustion and five minutes into recovery. Day 2, participants wore ice jackets for about 30 minutes before the exercise. There was a significant reduction (p<0.05) in the heart rate at exhaustion from 101.3 ± 6.5 to 98.1 ± 5.7 and during recovery from 95.3 ± 5.0 to 79.4 ± 3.6 with no significant change in the blood pressures after pre-cooling. Findings are in support of previous studies and may suggest that wearing of ice-cooling jacket attenuates heart rate with no significant change in the blood pressures following isotonic treadmill exercise in untrained young male adults.
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Keywords
Pre-cooling, ice cooling jacket, heart rate, blood pressure, treadmill exercise
Citation
Niyi-Odumosu, F.A., Esu, K.D., Ayinla, M.T., Gwadabe, S.M. & Dominic, O.L. (2015). Effect of Ice Cooling Jacket on Cardiovascular Responses to Treadmill Exercise in Untrained adults. Centrepoint Journal (Science Edition). 21(1); 165-180, Published by The Library and Publications Committee, University of Ilorin, Available on Online