Mark Tremblay

..Secondly, to determine the effects that acceleration and frequency have on these reliability measures...

..The diversity and intensity of activity addressing the childhood obesity and physical inactivity "epidemic" in Canada is encouraging and must be maintained...

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..Many operational and logistical procedures worked well and, with minor modifications, are being employed in the main survey. Fixed sites were problematic, and survey costs were higher than expected...

..This important and ambitious survey provides comprehensive and robust health information to advance health surveillance and research in Canada, while providing training opportunities to enhance research capacity...

..This paper provides a brief overview of the survey sampling, methodological, operational, logistical, ethical, legal and social issues and procedures related to the CHMS...

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..Objective physical activity monitors with time stamps are considered as a better means to capture and examine human movements over the entire day...

..This study extends the surveillance of physical activity in Canada to include the influence of time since immigration within and between ethnic groups...

..This article describes the prevalence of self-reported overweight and obesity, based on body mass index (BMI), by ethnicity and examines the influence of time since immigration within and between ethnic groups...

..The primary purpose of this study was to compare the health-related physical fitness and physical activity behaviors of Old Order Mennonite children to both rural and urban-dwelling children living a contemporary Canadian lifestyle...

..The relatively catabolic environment observed during the resistance session may indicate an intensity-rather than a mode-dependent response...

..Objective physical activity monitors with time stamps are considered as a better means to capture and examine human movements over the entire day...

..Recommendations on how to proceed are based on the evidence base provided by this series of papers; the immediate next steps mandated by this initiative are outlined and priorities for future research are indicated...

..Recommendations on how to proceed are based on the evidence base provided by this series of papers; the immediate next steps mandated by this initiative are outlined and priorities for future research are indicated...

..At a low intensity, longer duration runs are necessary to stimulate increased levels of testosterone, DHEAS and cortisol and beyond 80 min of running there is a shift to a more catabolic hormonal environment...

..However, a comprehensive assessment of fitness requires additional measures. This article provides up-to-date estimates of fitness levels of Canadians aged 20 to 69 years. Results are compared with estimates from 1981...

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..Recommendations for physical activity-inactivity profiling are provided and future research needs identified...

..This study examines the feasibility of developing correction factors to adjust self-reported measures of body mass index (BMI) to more closely approximate measured values...

..To examine the influence of physical activity on pediatric obesity reference data for Canada...

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..To determine the relationship between occupational physical activity (OPA) and chronic disease after controlling for leisure-time physical activity (LTPA) and other risk factors...

..This evidence may provide important insight for informing future physical activity recommendations. Idiosyncrasies of performing research on these traditional-living groups are also provided...

..This article examines sedentary behaviours (television viewing, computer use and reading) in relation to obesity among Canadian adults aged 20 to 64 years...

..Based on a representative sample of the Canadian population, this article quantifies the bias resulting from the use of self-reported rather than directly measured height, weight and body mass index (BMI)...

..Hypertension is estimated to cause more than one-eighth of all deaths worldwide. In Canada, the last national surveys to include direct measures of blood pressure (BP) took place over the years 1985-1992; hypertension was estimated at 21%...

..Associations between weight change and sex, age group and body mass index (BMI) category arealsoexamined...

..CONCLUSION: These results suggest that the prevalence of physically active Canadian adults varies by ethnicity. Strategies to promote physical activity and prevent physical inactivity should consider these findings...

..To examine the geographic and demographic variation in the prevalence of overweight Canadian children...

..The goal is to see if the misclassifications resulting from the use of self-reported data alters associations between excess body weight and these health conditions...

..g. questionnaire, diary) and objectively (directly measured; e.g. accelerometry, doubly labeled water) assessed physical activity in adults...

..Thus, the purpose of this study was to determine Actical accelerometer sedentary activity thresholds for adults...

..This study systematically reviews the literature to determine the extent of agreement between indirect (e.g., questionnaire) and direct (e.g., accelerometry) assessments of PA in pediatric populations (<or=19 years)...

..Smoking is a leading cause of premature mortality and preventable morbidity. Surveillance is most often based on self-reported data, but studies have shown that self-reports tend to underestimate smoking status...

..Common to all ELSI is the need for respondents' awareness and acceptance of their role in the survey process, and the obligation of the CHMS to respect respondents and the data they provide...

..The purpose of this article is to further the debate surrounding fitness testing in schools...

..Because hypertension is often asymptomatic, a large proportion of those with the condition are unaware of it...

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..Recommendations for physical activity-inactivity profiling are provided and future research needs identified...

..This brief introduction outlines a series of papers presented at the Canadian Society for Exercise Physiology Conference that used this model to explore changes in the physical activity behaviour of children over time...

..A secondary objective is to compare estimates by method of data collection...

..To investigate whether observed gender differences in objectively measured physical activity (PA) in children (8-13 yr) are confounded by physical maturity differences...

..To assess the validity of the new Actical accelerometer step count function...

..Differences in leg length and age might affect activity-monitor validity and, therefore, should be controlled for when estimating physical activity energy expenditure...

..Advances in modern technology may have contributed to this problem by reducing children's physical activity levels. Thus, it is interesting to study children belonging to groups that have refrained from adopting modern technology...

..These hormone changes potentially have both metabolic and hypertrophic implications, and future research needs to focus on the biological significance of these adaptations...

..These results do not support the use of the Access Sports Nutrition Bar to enhance endurance running performance of approximately one hour...

..The purpose of this study was to evaluate the effect of hormone replacement therapy (HRT) on the acute and chronic hormonal responses to resistance exercise in post-menopausal women...

..Absolute change in dehydroepiandrosterone was significantly greater in the RS only (p <.05). Results indicate that an acute bout of exercise can increase concentrations of anabolic hormones in females across a wide age range...

..The value and safety of hormone supplements must be examined, especially when used in combination with an exercise program...