Predictors of pregnancy-associated change in physical activity in a rural white population.
Predictors of pregnancy-associated change in physical activity in a rural white population.
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DOI：
10.1023/a:1011315616694
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发表时间：
2001-03-01
影响因子：
2.3
通讯作者：
Olson, C M
中科院分区：
文献类型：
--
作者：
Hinton, P S;Olson, C M
目的：本研究的目的是探讨社会人口统计学和社会心理特征以及孕前运动与孕期体力活动 (PA) 变化之间的关系。 方法：本研究是巴塞特母亲健康项目 (BMHP) 的一部分，该项目是一项针对 1994 年 11 月 7 日至 1996 年 11 月 15 日期间在巴塞特医疗保健系统登记接受产前护理的妇女的前瞻性队列研究。 622 名妇女符合资格标准并参加了这项研究。使用医疗记录和匿名邮寄问卷对产前的社会人口学和心理社会特征以及运动行为进行评估。采用阶段性线性回归分析来预测体力活动的变化，以社会心理和社会人口学特征为自变量，以孕前锻炼频率为控制变量。 结果：年龄较大、受教育程度较高且家庭收入较高的女性更有可能在怀孕前锻炼（p < .05）。怀孕后 PA 的变化与孕前运动频率相关 (p < .001)。经常锻炼的女性会减少活动量，而久坐的女性在怀孕后会保持或增加体力活动。运动自我效能（对自己定期运动能力的信念）和体重指数 (BMI) 是 PA 变化的正向预测因子 (p < .05)，而孕前运动频率作为控制变量仍然具有显着意义。结论：旨在帮助女性在围产期维持或增加 PA 的干预措施应旨在提高运动自我效能。
OBJECTIVE: The objective of this study was to examine the relationship of sociodemographic and psychosocial characteristics and exercise prior to pregnancy to change in physical activity (PA) during pregnancy.METHODS: This study was part of the Bassett Mothers' Health Project (BMHP), a prospective cohort study of women who enrolled for prenatal care in the Bassett Healthcare system between November 7, 1994, and November 15, 1996. Six hundred twenty-two women met the eligibility criteria and were enrolled in the study. Sociodemographic and psychosocial characteristics and exercise behavior were assessed prenatally using the medical record and an anonymous mailed questionnaire. Staged linear regression analysis was used to predict change in physical activity with the psychosocial and sociodemographic characteristics as the independent variables and prepregnancy exercise frequency as a control variable.RESULTS: Women who were older, more educated, and had higher household incomes were more likely to exercise prior to pregnancy (p < .05). Change in PA after becoming pregnant was associated with prepregnancy exercise frequency (p < .001). Women who exercised frequently moderated their activity, while sedentary women maintained or increased their PA after becoming pregnant. Exercise self-efficacy (the belief in one's ability to exercise regularly) and body mass index (BMI) were positive predictors of change in PA (p < .05), while prepregnancy exercise frequency remained significant as a control variable.CONCLUSION: Interventions that aim to help women maintain or increase their PA during the perinatal period should be designed to increase exercise self-efficacy.