Sociodemographic Factors Associated With Meeting the Canadian 24-Hour Movement Guidelines Among Adults: Findings From the Canadian Health Measures Survey.

BACKGROUND: This study examined associations between sociodemographic factors and meeting versus not meeting the new Canadian 24-Hour Movement Guidelines recommendations. METHODS: The study is based on 7651 respondents aged 18-79 years from the 2007 to 2013 Canadian Health Measures Survey, a nationally representative, cross-sectional survey. Sociodemographic factors included age, sex, household education, household income, race, having a chronic condition, smoking status, alcohol consumption, and body mass index. Participants were classified as meeting or not meeting each of the time-specific recommendations for moderate to vigorous physical activity, sedentary behavior, and sleep duration. RESULTS: Being an adult aged 18-64 years, normal weight, nonsmoker, and not having a chronic condition were associated with meeting the integrated guidelines. Being aged 18-64 years, male, normal weight, nonsmoker, not having a chronic condition, having a higher household education, and higher household income were associated with meeting the moderate to vigorous physical activity recommendation; being aged 18-64 years was associated with meeting the sedentary behavior recommendation; and being white, not having a chronic condition, and having a higher household income were associated with meeting the sleep duration recommendation. CONCLUSIONS: Few Canadian adults met the 2020 Canadian 24-Hour Movement Guidelines, and disparities across sociodemographic factors exist. Implementation strategies and dissemination approaches to encourage uptake and adoption are necessary.

Meeting Canadian 24-Hour Movement Guideline recommendations and risk of all-cause mortality.

This study determined if meeting the Canadian 24-Hour Movement Guidelines recommendations are associated with all-cause mortality. Participants were 3471 adults from the 2005-2006 U.S. National Health and Nutrition Examination Survey followed for mortality over 11 years. They were classified as meeting or not meeting recommendations for sleep duration, sedentary behaviour, and moderate-to-vigorous physical activity (MVPA). A total of 63.8%, 35.3%, and 41.5% of participants met recommendations for sleep, sedentary behaviour, and physical activity while 12.3% met all 3 recommendations. The hazard ratio (HR) for all-cause mortality in participants meeting the recommendations relative to those not meeting the recommendations were 0.91 (0.72, 1.16) for sleep, 0.92 (0.61, 1.40) for sedentary behaviour, and 0.42 (0.24, 0.74) for MVPA. The HR for meeting none, any 1, any 2, and all 3 recommendations were 1.00, 0.86 (0.65, 1.14), 0.49 (0.28, 0.86), and 0.72 (0.34, 1.50). When the cut-point used to denote acceptable sedentary time was changed from ≤8 to ≤10 hours/day, the HR for meeting none, any 1, any 2, and all 3 recommendations were 1.00, 0.83 (0.59, 1.15), 0.57 (0.34, 0.96), and 0.43 (0.20, 0.93). These findings provide some support of the ability of the 24-hour Movement Guidelines to predict mortality risk. Novelty: The 24-Hour Movement Guidelines provide recommendations for sleep, sedentary behaviour, and physical activity. The findings of this study provide some support of the ability of these new guidelines to predict mortality risk.

Anthropometric and body composition changes in smokers vs abstainers following an exercise-aided pharmacotherapy smoking cessation trial for women.

INTRODUCTION: Post-cessation weight gain contributes to smoking relapse, especially for women. Furthermore, excess weight in the form of android or visceral fat is associated with metabolic health problems. For this study, a secondary analysis was conducted in 2015 to determine whether quitting status, achieved through a 14 week supervised exercise-aided nicotine replacement therapy (NRT) cessation program [Getting Physical on Cigarette Trial-2009 to 2013; Prapavessis, et al., 2016], affects anthropometric and body composition parameters in female smokers (N = 413, M age = 42.39 years). METHODS: Anthropometric (weight and BMI) and body composition (% total body fat, % android fat, lean mass and visceral fat) indices were assessed at baseline and end of treatment. Smoking status was confirmed weekly from expired breath carbon monoxide. Adherence to exercise and NRT patch was calculated from the number of exercise sessions attended and patches worn to the number of exercise sessions offered and patches supplied, respectively. RESULTS: Factorial (smoking status) ANCOVAs controlling for baseline anthropometric and body composition parameters as well as adherence to exercise and NRT revealed significant differences in weight (p = .033; ɳp2 = 0.017) and BMI (p = .020; ɳp2 = 0.020) at week 14. This equated to abstainers weighing 1.26 kg more and having a 0.52 higher BMI than smokers. No significant differences were found for any of the body composition parameters at week 14 (ɳp2 range from 0.001-0.007). CONCLUSIONS: Abstainers gain modest weight compared to smokers. This weight gain is related to increases in lean mass and not total, android, or visceral fat.