Maternal inactivity: 45-year trends in mothers' use of time

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Abstract

Objective: To examine 45-year trends in time use and physical activity energy expenditure (PAEE) in a nationally representative sample of US mothers. Participants and Methods: We quantified time allocation to physical activity (PA), sedentary behaviors (SED), and PAEE from 1965 to 2010 in mothers with older children (MOC) (≥5 to ≤18 years) and mothers with younger children (MYC) (≤5 years). Physical activity was the sum of time allocated to housework, child care, laundry, food preparation, postmeal cleanup, and exercise. Sedentary behavior was the sum of time spent in a vehicle and using screen-based media. Physical activity energy expenditure was calculated using body weights from national surveys and metabolic equivalents. Results: From 1965 to 2010, the time allocated to PA decreased by 11.1 h/wk (from 32.0 to 20.9 h/wk) in MOC and by 13.9 h/wk (from 43.6 to 29.7 h/wk) in MYC. The time spent in SED increased by 7.0 h/wk in MOC (from 17.7 to 24.7 h/wk) and increased by 5.7 h/wk in MYC (from 17.0 to 22.7 h/wk). Physical activity energy expenditure decreased by 1237.6 kcal/wk (176.8 kcal/d) in MOC (from 5835.3 to 4597.7 kcal/wk), and in MYC, PAEE decreased by 1572.5 kcal/wk (224.6 kcal/d), from 7690.5 to 6118.0 kcal/wk. Conclusion: There was a significant reallocation of time by mothers from PA (eg, housework) to SED (eg, watching television) between 1965 and 2010. Given the essential role of PA for health and the potential for the intergenerational transmission of obesity and obesogenic behaviors, these results suggest that maternal inactivity may be an important target for the primary prevention of chronic noncommunicable diseases and obesity. © 2013 Mayo Foundation for Medical Education and Research.

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APA

Archer, E., Lavie, C. J., McDonald, S. M., Thomas, D. M., Hébert, J. R., Taverno Ross, S. E., … Blair, S. N. (2013). Maternal inactivity: 45-year trends in mothers’ use of time. Mayo Clinic Proceedings, 88(12), 1368–1377. https://doi.org/10.1016/j.mayocp.2013.09.009

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