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Age-related changes in weight and body composition: implications for health in the elderly
(2008-06-04)
The objective of this thesis was to examine age-related changes in weight and body composition as they relate to health in older adults. This thesis was completed in manuscript format and consists of two studies, both of ...
Effects of Pregnancy and Physical Activity on Angiogenesis and Endothelial Function: Implications for the Development of Preeclampsia
(2009-06-22)
Prospective epidemiological studies indicate that regular exercise during the year prior to conception reduces preeclampsia risk, whereas exercise during affects pregnancy reduces preeclampsia risk only at specific dosages, ...
Physical Activity, Sedentary Behaviour, and Health in Children and Youth
(2008-12-15)
There is currently a dearth of information suitable for the development of evidence-based physical activity and screen time guidelines for children and youth. The overarching purpose of this thesis was to generate findings ...
Advances in objectively measured movement behaviours in children
The objectives of this thesis were: 1) to develop and apply a novel method for objectively measuring the time children and adolescents spend engaged in different types of physical activity, 2) to develop and validate an ...
The Burden of Obesity and Physical Inactivity Across the Lifespan, with a Focus on Health-Related Quality of Life
(2010-12-15)
Obesity and physical inactivity are major risk factors for numerous chronic diseases, conditions, and early mortality. Healthy body weight and physical activity (PA) are also positively associated with health-related ...
Physical activity, sedentary behaviour and sleep: associations with cardiometabolic risk in abdominally obese men and women
(2011-05-18)
Current guidelines suggest that physical activity must be performed at a moderate-to-vigorous intensity (MVPA) and accumulated in bouts of at least 10 consecutive minutes to elicit improvement in cardiorespiratory fitness ...
Does the Plan Fit? The Effectiveness of Combining Implementation Intentions and Regulatory Fit for Increasing Physical Activity and Decreasing Sedentary Behaviour
(2010-07-02)
The purpose of this study was to examine the effectiveness of combining implementation intentions (II) and regulatory fit in the context of two important health goals: increasing leisure time physical activity and decreasing ...
Investigation into the relationship between Physical Activity and Homocysteine
(2007-09-26)
Background: A beneficial effect of physical activity on the risk of cancer at several sites has been consistently observed. Biologic mechanisms that may underlie this relationship are not well understood. A potential ...
School and neighbourhood recreational environments and their impact on physical activity participation among Canadian youth
(2008-05-27)
Background: Less than half of Canadian youth meet recommended levels of physical activity. This is of concern given the health burden associated with physical inactivity. With the limited success of physical activity ...
The direct and moderating effect of bullying on adolescent health
(2007-07-19)
In the last two decades, research has established a negative association between involvement in bullying and emotional health difficulties. Few studies, in comparison, explore the relationship between bullying and ...