Effectiveness of a 12-month Randomized Clinical Trial to Increase Physical Activity in Multiethnic Postpartum Women: Results from Hawaii's Nā Mikimiki Project
Overview
Authors
Affiliations
Objective: Few postpartum ethnic minority women perform leisure-time moderate-to-vigorous physical activity (MVPA). The study tested the effectiveness of a 12-month tailored intervention to increase MVPA in women with infants 2-12months old.
Methods: From 2008 to 2011, women (n=311) with infants (average age=5.7months) from Honolulu, Hawaii were randomly assigned to receive tailored telephone calls and access to a mom-centric website (n=154) or access to a standard PA website (n=157). MVPA was measured at baseline, 6, and 12months using self-report and acclerometers.
Results: Controlling for covariates, the tailored condition significantly increased self-reported MVPA from an average of 44 to 246min/week compared with 46 to 156min/week for the standard condition (p=0.027). Mothers with≥2 children had significantly greater increases in MVPA in response to the tailored intervention than those with one child (p=0.016). Accelerometer-measured MVPA significantly increased over time (p=0.0001), with no condition differences. There was evidence of reactivity to initially wearing accelerometers; the tailored intervention significantly increased MVPA among women with low baseline accelerometer MVPA minutes, but not among those with high minutes (pinteraction=0.053).
Conclusion: A tailored intervention effectively increased MVPA over 12months in multiethnic women with infants, particularly those with more than one child.
Hausvater A, Pleasure M, Vieira D, Banco D, Dodson J Am J Prev Cardiol. 2025; 21():100917.
PMID: 39816980 PMC: 11733190. DOI: 10.1016/j.ajpc.2024.100917.
Hong S, Lee J, Goldberg M, Emory-Khenmy C J Racial Ethn Health Disparities. 2024; .
PMID: 39264539 DOI: 10.1007/s40615-024-02152-4.
Zhu S, Sinha D, Kirk M, Michalopoulou M, Hajizadeh A, Wren G BMJ. 2024; 386:e078713.
PMID: 38986547 PMC: 11234249. DOI: 10.1136/bmj-2023-078713.
Xu H, Liu R, Wang X, Yang J PLoS One. 2023; 18(11):e0287650.
PMID: 38019729 PMC: 10686497. DOI: 10.1371/journal.pone.0287650.
Strobel N, Chamberlain C, Campbell S, Shields L, Bainbridge R, Adams C Cochrane Database Syst Rev. 2022; 12:CD012463.
PMID: 36511823 PMC: 9746601. DOI: 10.1002/14651858.CD012463.pub2.