Effect of physical activity intervention based on a pedometer on physical activity level and anthropometric measures after childbirth: a randomized controlled trial

<p>Abstract</p> <p>Background</p> <p>Pregnancy and childbirth are associated with weight gain in women, and retention of weight gained during pregnancy can lead to obesity in later life. Diet and physical activity are factors that can influence the loss of retained pregnancy weight after birth. Exercise guidelines exist for pregnancy, but recommendations for exercise after childbirth are virtually nonexistent. The aim of this study was to evaluate the effect of physical activity intervention based on pedometer on physical activity level and anthropometric measures of women after childbirth.</p> <p>Methods</p> <p>We conducted a randomized controlled trial in which 66 women who had given birth 6 weeks to 6 months prior were randomly assigned to receive either a 12 week tailored program encouraging increased walking using a pedometer (intervention group, n = 32) or routine postpartum care (control group, n = 34). During the 12-week study period, each woman in the intervention group wore a pedometer and recorded her daily step count. The women were advised to increase their steps by 500 per week until they achieved the first target of 5000 steps per day and then continued to increase it to minimum of 10,000 steps per day by the end of 12^thweek. Assessed outcomes included anthropometric measures, physical activity level, and energy expenditure per week. Data were analyzed using the paired t-test, independent t-test, Mann-Whitney, chi-square, Wilcoxon, covariance analysis, and the general linear model repeated measures procedure as appropriate.</p> <p>Results</p> <p>After 12 weeks, women in the intervention group had significantly increased their physical activity and energy expenditure per week (4394 vs. 1651 calorie, <it>p </it>< 0.001). Significant differences between-group in weight (<it>P </it>= 0.001), Body Mass Index (<it>P </it>= 0.001), waist circumference (<it>P </it>= 0.001), hip circumference (<it>P </it>= 0.032) and waist-hip ratio (<it>P </it>= 0.02) were presented after the intervention. The intervention group significantly increased their mean daily step count over the study period (from 3249 before, to 9960 after the intervention, <it>p </it>< 0.001).</p> <p>Conclusion</p> <p>A physical activity intervention based on pedometer is an effective means to increase physical activity; reducing retention of weight gained during pregnancy and can improve anthropometric measures in postpartum women.</p> <p>Trial registration</p> <p>ISRCTN: <a href="http://www.controlled-trials.com/IRCT201105026362N1">IRCT201105026362N1</a></p

Technology-Enhanced Health Promotion for College Students: A Seed Development Project

Obesity is an issue for young adults in the U.S. This population is particularly vulnerable to weight gain as they move from adolescence to young adulthood, especially as they transition from high school to college. Adopting a health promotion approach, a university-based cluster of researchers, community advocates, and a technology partner embarked on a two-year seed development project that focused on development, implementation, and evaluation of a web-based healthy lifestyle intervention for college students. Using a mixed-method design, two convenience samples of residential university students were recruited to participate in a 4-week intervention called Eat, Move, Live, in which they interacted with a newly-created comprehensive website about management of a healthy lifestyle. Participants’ post-intervention readiness for change increased by 15% (eating and life balance behaviors) to 23% (moving behaviors). Participants reported increased awareness of eating behaviors, and feelings of engagement in tracking their fruit and vegetable consumption. Findings suggest that technology may be utilized to enhance the effectiveness and efficiency of achieving students’ individual goals related to healthy living. These preliminary findings have implications for increasing the development and implementation of technological approaches to health promotion for young adult students

Physical Activity Patterns and Maternal Well-Being in Postpartum Women

Objective: To examine changes in activity prepregnancy to postpartum; examine postpartum activity and sociodemographic predictors of maternal well-being; and, examine maternal well-being in subjects on the basis of sport/exercise activity prepregnancy to postpartum. Methods: Ninety-one postpartum women completed a Kaiser Physical Activity Survey (KPAS) Ainsworth BE, Sternfeld B, Richardson MT, Jackson K. Evaluation of the Kaiser Physical Activity Survey in women. Med Sci Sports Exerc 2000; 32:1327–38. and the Lederman Postpartum Questionnaire (PPQ) Lederman RP, Weingarten CT, Lederman E. Postpartum self-evaluation questionaire: Measures of maternal adaptation. In: Raff BS, Carrol P, editors. Perinatal parental behaviour: Nursing research and implications for newborn health. New York: Alan R. Liss, 1981:201–31. Subjects recalled activity prepregnancy and postpartum for the KPAS indexes that included household/care giving (HC), active living habits (AL), occupation (O), and sports/exercise (SE). The PPQ has seven well-being subscales. Results: Subjects with older infants or no other children increased HC and decreased O prepregnancy to postpartum compared to subjects with younger infants or ≥1 other child. Predictors of the variance in the PPQ subscales included SE and AL (21% in subscale one), SE (6.0% in subscale two), HC (5.3% in subscale three), socioeconomic status (19.7% in subscale four), O (5.0% in subscale five), education (5.2% in subscale seven). Subjects who maintained or increased SE showed better well-being as compared to subjects who reported no SE or decreased SE prepregnancy to postpartum. Conclusions: In this group of women, subjects with older infants or no other children reported higher HC and lower O prepregnancy to postpartum. Postpartum SE, education, and socioeconomic status were predictors of maternal well-being. In general, better maternal well-being was found among subjects maintaining or increasing SE compared to no SE or decreased SE prepregnancy to postpartum. Support from partner/husband, family, and friends were significant factors in maintaining or increasing SE