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dc.contributor.authorHougham, Kaitlyn
dc.contributor.otherQueen's University (Kingston, Ont.). Theses (Queen's University (Kingston, Ont.))en
dc.date2011-06-13 19:56:40.465en
dc.date.accessioned2011-06-16T17:42:39Z
dc.date.available2011-06-16T17:42:39Z
dc.date.issued2011-06-16T17:42:39Z
dc.identifier.urihttp://hdl.handle.net/1974/6557
dc.descriptionThesis (Master, Kinesiology & Health Studies) -- Queen's University, 2011-06-13 19:56:40.465en
dc.description.abstractThe purpose of this study was to determine if, after adjusting for the contribution of exercise dose, exercise intensity was associated with the improvement of insulin sensitivity. Abdominally obese, sedentary men (n = 16, [mean±SD] age: 45.0±7.5 yr; waist circumference: 108.6±5.3 cm) and women (n = 18, [mean±SD] age: 42.3±6.2 yr; waist circumference: 100.1±8.2 cm) performed daily, supervised exercise for 3 and 4 months, respectively. Exercising at a self selected exercise intensity, men were required to expend expended 700 kcal per session and women 500 kcal per session. Exercise intensity and dose were determined using heart rate and oxygen consumption data obtained from repeated graded exercise tests. Insulin sensitivity was determined by hyperinsulinemic euglycemic clamp. Insulin sensitivity improved in both men and women (change score: men = 7.2±5.4 mg/kgskm/min, women = 5.8±7.1 mg/kgskm/min) (p < 0.05). Exercise intensity was associated with the improvements in insulin sensitivity in men (unstandardized regression coefficient (β) = 0.43, p = 0.02). Adjusting for exercise dose, the change in abdominal adipose tissue (AT), or the change visceral AT did not alter this association (p < 0.05). Exercise intensity was not associated with the improvement of insulin sensitivity in women (β = - 0.11, p = 0.7). Adjusting for exercise dose, the change in abdominal or visceral AT did not change the association in women (p > 0.05). Our findings suggest that exercise intensity is independently associated with the improvement of insulin sensitivity in abdominally obese men but not women.en
dc.languageenen
dc.language.isoenen
dc.relation.ispartofseriesCanadian thesesen
dc.rightsThis publication is made available by the authority of the copyright owner solely for the purpose of private study and research and may not be copied or reproduced except as permitted by the copyright laws without written authority from the copyright owner.en
dc.subjectPhysical activityen
dc.subjectInsulin resistanceen
dc.titleEVIDENCE THAT THE ASSOCIATION BETWEEN EXERCISE INTENSITY AND INSULIN SENSITIVITY IS SEX DEPENDENTen
dc.typethesisen
dc.description.degreeMasteren
dc.contributor.supervisorRoss, Roberten
dc.contributor.departmentKinesiology and Health Studiesen


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