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Exploratory analysis of exercise adherence patterns with sedentary pregnant women |
Yeo S-A, Cisewski J, Lock EF, Marron J |
Nursing Research 2010 Jul-Aug;59(4):280-287 |
clinical trial |
2/10 [Eligibility criteria: No; Random allocation: Yes; Concealed allocation: No; Baseline comparability: No; Blind subjects: No; Blind therapists: No; Blind assessors: No; Adequate follow-up: No; Intention-to-treat analysis: No; Between-group comparisons: Yes; Point estimates and variability: No. Note: Eligibility criteria item does not contribute to total score] *This score has been confirmed* |
BACKGROUND: It is not well understood how sedentary women who wish to engage in regular exercise adhere to interventions during pregnancy and what factors may influence adherence over time. OBJECTIVE: The aim of this study was to examine longitudinal patterns of pregnant women's adherence to exercise. METHODS: Exploratory secondary data analyses were carried out with 124 previously sedentary pregnant women (ages 31 +/- 5 years; 85% non-Hispanic white) from a randomized controlled trial. Daily exercise logs (n = 92) from 18 through 35 weeks of gestation were explored using linear regression, functional data, and principal component analyses. RESULTS: Adherence decreased as gestation week increased (p < 0.001). The top adherers maintained levels of adherence, and the bottom adherers decreased levels of adherence. And adherence pattern was influenced by types of exercise throughout the study period. DISCUSSION: Exercise behavior patterns were explored in a randomized controlled trial study, using chronometric data on exercise attendance. A new analytic approach revealed that sedentary pregnant women may adopt exercise habits differently from other populations.
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