Walking for Health in Pregnancy: Assessment by Indirect Calorimetry and Accelerometry

• Autores: Jennifer M. DiNallo, Guy C. Le Masurier, Nancy I. Williams, Danielle Symons Downs
• Localización: Research quarterly for exercise and sport, ISSN 0270-1367, Vol. 79, Nº. 1, 2008, págs. 28-35
• Idioma: inglés
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• Resumen

  • The purpose of this study was to examine RT3 accelerometer activity counts and activity energy expenditure of 36 pregnant women at 20 and 32 weeks� gestation during treadmill walking and free-living conditions. During treadmill walking, oxygen consumption was collected, and activity energy expenditure was estimated for a 30-min walk at a self-selected walking pace. The number of min it would take a pregnant woman to meet exercise recommendations (i.e., kcal/week) were calculated. Preliminary activity count cut points at a self-selected walking pace were then estimated and applied in interpreting free-living data. For the treadmill walking condition, the self-selected walking pace significantly decreased from 20 to 32 weeks� gestation. Additionally, few women (< 12% each day) met physical activity guidelines in the free-living condition. Encouraging pregnant women to walk for 30�40 min per day at a self-selected walking pace may be an appropriate public health recommendation.