Suzy Lai Wong

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PURPOSE It has been suggested that health benefits from physical activity may be accrued through active commuting to school. Considering that active commuting is modifiable via policy and that there is limited research examining active commuting among high school students, this is a domain that warrants further investigation. The purpose of this study is to(More)
BACKGROUND Self-reported screen time is associated with elevated health risk in children and youth; however, research examining the relationship between accelerometer-measured sedentary time and health risk has reported mixed findings. The purpose of this study was to examine the association between accelerometer-measured patterns of sedentary time and(More)
PURPOSE To determine the reliability and validity of the School Health Action, Planning and Evaluation System (SHAPES) physical activity questionnaire, a machine-readable questionnaire designed to collect data from all students in a school from grades 6 to 12 and to provide feedback to the school for planning and evaluation. METHODS Study 1 assessed(More)
PURPOSE To determine whether, for a given body mass index (BMI), men with high cardiorespiratory fitness (CRF) have lower waist circumference (WC) and less total abdominal, abdominal subcutaneous, and visceral adipose tissue (AT) compared with men with low CRF. METHODS Subjects were categorized into HIGH CRF (N = 169) and LOW CRF (N = 124) groups based on(More)
INTRODUCTION Sedentary behavior and physical activity are not mutually exclusive behaviors. The relative risk of overweight for adolescents who are highly sedentary and highly physically active is unclear. A better understanding of the relationship between sedentary behaviors, physical activity, and body mass index (BMI) would provide insight for developing(More)
BACKGROUND Cigarette smoking is associated with adverse health effects, including cancer, respiratory illness, heart disease and stroke. National data on smoking prevalence often rely on self-reports. This study assesses the validity of self-reported cigarette smoking status among Canadians. DATA AND METHODS Data are from the 2007 to 2009 Canadian Health(More)
OBJECTIVE Childhood overweight and obesity is a major public health issue. A better understanding of factors associated with sedentary behaviours would provide valuable insight for tailoring interventions to prevent or reduce overweight among youth. METHODS Data were collected from 25,416 grade 9 to 12 students attending 76 secondary schools in Ontario,(More)
BACKGROUND Actical accelerometer thresholds have been derived to enable objective measurement of time spent performing sedentary activity in children and adolescents, but not adults. Thus, the purpose of this study was to determine Actical accelerometer sedentary activity thresholds for adults. METHODS Data were available from 3187 participants aged 6 to(More)
OBJECTIVE The aim of this study is to examine the associations of total sedentary time and patterns of sedentary time with cardiometabolic biomarkers in a large representative sample of Canadian adults. METHODS The study is based on 4935 adults aged 20-79years, from the 2007/09 and 2009/11 Canadian Health Measures Survey. Total sedentary time, patterns of(More)