Abstract
BackgroundInsufficient physical activity, short sleep duration, and excessive recreational screen time are increasing globally. Currently, there are little to no data describing prevalences and correlates of movement behaviours among children in low-middle-income countries. The few available reports do not include both urban and rural respondents, despite the large proportion of rural populations in low-middle-income countries. We compared the prevalence of meeting 24-h movement guidelines and examined correlates of meeting the guidelines in a sample of urban and rural Mozambican schoolchildren.MethodsThis is cross-sectional study of 9–11 year-old children (n = 683) recruited from 10 urban and 7 rural schools in Mozambique. Moderate- to vigorous-intensity physical activity (MVPA) and sleep duration were measured by waist-worn Actigraph GT3X+ accelerometers. Accelerometers were worn 24 h/day for up to 8 days. Recreational screen time was self-reported. Potential correlates of meeting 24-h movement guidelines were directly measured or obtained from validated items of context-adapted questionnaires. Multilevel multivariable logit models were used to determine the correlates of movement behaviours. Meeting 24-h movement guidelines was defined as ≥60 min/day of MVPA, ≤2 h/day of recreational screen time, and between 9 and 11 h/night of sleep.ResultsMore rural (17.7%) than urban (3.6%) children met all three 24-h movement guidelines. Mean MVPA was lower (82.9 ± 29.5 min/day) among urban than rural children (96.7 ± 31.8 min/day). Rural children had longer sleep duration (8.9 ± 0.7 h/night) and shorter recreational screen time (2.7 ± 1.9 h/day) than their urban counterparts (8.7 ± 0.9 h/night and 5.0 ± 2.3 h/day respectively). Parental education (OR: 0.37; CI: 0.16–0.87), school location (OR: 0.21; CI: 0.09–0.52), and outdoor time (OR: 0.67; CI: 0.53–0.85) were significant correlates of meeting all three 24-h movement guidelines.ConclusionsPrevalence and correlates of meeting movement guidelines differed between urban and rural schoolchildren in Mozambique. On average, both groups had higher daily MVPA minutes, shorter sleep duration, and higher recreational screen time than the 24-h movement guidelines recommend. These findings (e.g., higher than recommended mean daily MVPA minutes) differ from those from high-income countries and highlight the need to sample from both urban and rural areas.
Highlights
Insufficient physical activity (PA) [1], inadequate sleep duration [2], and excessive recreational screen time (ST) [3] have been linked with a higher risk of childhood obesity, cardiovascular disease, metabolic syndrome, type 2 diabetes mellitus, and all-cause mortality in adulthood [4,5,6,7]
Surveillance mechanisms for the prevention and identification of those most at risk for the health consequences associated with suboptimal moderate- to vigorous-intensity physical activity (MVPA) or sleep includes national [8, 9] and global [10, 11] 24-h movement guidelines for children and youth
In 2010, self-reported data from the Global Health Observatory showed that 81% of 11–17 year-old youth did not accumulate the recommended ≥60 min of daily moderate- to vigorous-intensity physical activity (MVPA) [12]
Summary
Insufficient physical activity (PA) [1], inadequate sleep duration [2], and excessive recreational screen time (ST) [3] have been linked with a higher risk of childhood obesity, cardiovascular disease, metabolic syndrome, type 2 diabetes mellitus, and all-cause mortality in adulthood [4,5,6,7]. In 2010, self-reported data from the Global Health Observatory showed that 81% of 11–17 year-old youth did not accumulate the recommended ≥60 min of daily moderate- to vigorous-intensity physical activity (MVPA) [12]. A recent review showed that overall, 5–18 year-old children and adolescents from 20 countries have been losing an average of 0.76 min of sleep/year over the past century [2], the evidence for secular trends is mixed, conflicting and limited [13]. Insufficient physical activity, short sleep duration, and excessive recreational screen time are increasing globally. There are little to no data describing prevalences and correlates of movement behaviours among children in low-middle-income countries. We compared the prevalence of meeting 24-h movement guidelines and examined correlates of meeting the guidelines in a sample of urban and rural Mozambican schoolchildren
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