The effects of a moderate physical activity program on heat tolerance in men

dc.contributor.authorShields, Casieen_US
dc.date.accessioned2007-07-12T19:42:28Z
dc.date.available2007-07-12T19:42:28Z
dc.date.issued2001-07-01T00:00:00Zen_US
dc.degree.disciplinePhysical Education and Recreational Studiesen_US
dc.degree.levelMaster of Science (M.Sc.)en_US
dc.description.abstractModerate intensity training induces health benefits, however its influence on heat tolerance is unclear. Twelve inactive males (mean +- SD) (age = 24 +- 6 yrs, BMI = 25.3 +- 3.2 kg/m2, V02peak = 40.2 +- 8.1 ml/kg/min) performed work-heat tolerance and V02peak tests pre and post a moderate training intervention. All subjects were initially below the guidelines for physical activity set forth by the US Surgeon General, Health Canada, and CSEP. Eight randomly assigned subjects underwent the 12-week program, participating in activities such as cycling, walking, and recreational sports. Subjects were instructed to train at 50% V02Reserve, and gradually increased energy expenditure to reach a mean of 2158 kcal/week, which is beyond the above mentioned recommendations. Four control subjects remained sedentary. In the training group, V02peak increased 19% (p < 0.01), and resting peripheral blood flow during heat stress increased (p < 0.01), indicating some initial thermoregulatory benefits. No significant differences were observed in esophageal temperature or sweat threshold. Health benefits associated with heat adaptations may require more vigorous exercise than recommended by current physical activity guidelines.en_US
dc.format.extent3584330 bytes
dc.format.extent184 bytes
dc.format.mimetypeapplication/pdf
dc.format.mimetypetext/plain
dc.identifier.urihttp://hdl.handle.net/1993/2694
dc.language.isoengen_US
dc.rightsopen accessen_US
dc.titleThe effects of a moderate physical activity program on heat tolerance in menen_US
dc.typemaster thesisen_US
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