Physical activity and sedentary time in a rural adult population in Malawi compared with an age-matched US urban population
Pratt, Michael, Sallis, James F., Cain, Kelli L., Conway, Terry L., Palacios-Lopez, Amparo, Zezza, Alberto, Spoon, Chad, Geremia, Carrie M., Gaddis, Isis, Amankwah, Akuffo, Friedman, Jed and Kilic, Talip. (2020) Physical activity and sedentary time in a rural adult population in Malawi compared with an age-matched US urban population. BMJ Open Sport & Exercise Medicine. 6(1), p. e000812. https://doi.org/10.1136/bmjsem-2020-000812
|Authors||Pratt, Michael, Sallis, James F., Cain, Kelli L., Conway, Terry L., Palacios-Lopez, Amparo, Zezza, Alberto, Spoon, Chad, Geremia, Carrie M., Gaddis, Isis, Amankwah, Akuffo, Friedman, Jed and Kilic, Talip|
Objectives: This study was designed to assess patterns of objectively measured physical activity (PA) and sedentary behaviour in a sample of adults in a rural setting from a low-income Sub-Saharan African country (Malawi). The patterns of PA and sedentary behaviour in Malawi were compared with US data collected and analysed using the same methodology.
Methods: The Malawi PA data were collected as part of a survey experiment on the measurement of agricultural labor conducted under the World Bank Living Standards Measurement Study program. ActiGraph accelerometers (model GT3X) were worn on the right hip in a household-based sample of 414 working-age adults (15–85 years).
Results: Mean total and 95% CIs for PA by category in min/day for Malawi adults were: sedentary 387.6 (377.4–397.8), low-light 222.1 (214.7–229.5), high-light 136.3 (132.7–139.9), moderate 71.6 (68.8–74.5), vigorous 1.1 (0.5–1.8) and moderate-to-vigorous physical activity (MVPA) 72.8 (69.7–75.9). Mean of PA and sedentary behavior (min/day) summed across age and sex groups are compared between Malawi and US samples: sedentary behaviour, 387.6 vs 525.8 (p<0.001); low-light, 222.1 vs 217.0 (p=ns); high-light, 136.3 vs 45.6 (p<0.001); moderate, 71.6 vs 28.0 (p<0.001); vigorous, 1.1 vs 2.5 (p<0.001); MVPA, 72.8 vs 30.5 (p<0.001). Compared with the USA, Malawi participants averaged consistently less sedentary time/day and more minutes/day in all intensity levels of PA, except for low-light and vigorous PA.
Conclusion: Overall, levels of MVPA and high-light activity in adults in Malawi were substantially higher and sedentary time was substantially lower than those observed in US samples using near identical data collection, scoring and analysis.
|Journal||BMJ Open Sport & Exercise Medicine|
|Journal citation||6 (1), p. e000812|
|Publisher||BMJ Publishing Group Limited|
|Digital Object Identifier (DOI)||https://doi.org/10.1136/bmjsem-2020-000812|
|Open access||Published as ‘gold’ (paid) open access|
|Research or scholarly||Research|
File Access Level
|Online||12 Oct 2020|
|Publication process dates|
|Accepted||17 Aug 2020|
|Deposited||03 Jun 2021|
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