Schwartz Juliano, Rhodes Ryan E, Oh Paul, Bredin Shannon S D, Perotto Maira B, González Alejandro Gaytán, Warburton Darren E R
Physical Activity Promotion and Chronic Disease Prevention Unit, University of British Columbia, Vancouver, BC, Canada.
School of Exercise Science, Physical and Health Education, University of Victoria, Victoria, BC, Canada.
Int J Behav Med. 2025 Apr;32(2):195-213. doi: 10.1007/s12529-024-10279-1. Epub 2024 Apr 1.
Recent evidence highlights the importance of interventions tackling physical inactivity and unhealthy eating in lower-income countries. The purpose of this study was to examine the effectiveness of the Canadian ACCELERATION lifestyle program adapted to Brazilians. The main outcomes of the study were changes in the engagement in weekly moderate-to-vigorous physical activity (MVPA) and in the daily consumption of fruits/vegetables.
The adapted intervention consisted of a 12-week quasi-randomized controlled trial delivered through email. The data from the original Canadian experimental group (CE, n = 194) and the two groups of Portuguese-speaking Brazilians living in Canada in the adapted program - Brazilian experimental (BE, n = 41) and Brazilian control (BC, n = 35) - were assessed at baseline and post-intervention. The data of the 270 participants were analyzed using two-way repeated measures factorial ANCOVA (group x time) for ratio variables and Chi-square and McNemar tests for the categorical variables.
The BE group had a significant increase in MVPA (mean difference, 95% CI: 86.3, 38.1-134.4 min/week) and fruits/vegetables intake (3.2, 1.4-5.1 servings/day) after the intervention (both p < 0.001). The proportion of participants engaging in ≥ 150 min of MVPA increased from 4.9% to 73.2%, while adoption of a healthy diet increased from 4.9% to 53.7% in the BE group (both p < 0.001). The CE group also improved on these variables (p < 0.05) with no difference vs the BE group (p > 0.05), whereas BC did not show changes (p > 0.05).
The Brazilian version of the ACCELERATION program effectively promoted positive health behavior changes in its participants and has the potential to contribute to the fight against risk factors for chronic diseases in Brazilians.
近期证据凸显了在低收入国家开展应对身体活动不足和不健康饮食干预措施的重要性。本研究的目的是检验针对巴西人调整后的加拿大“加速”生活方式项目的有效性。该研究的主要结果是每周中等至剧烈身体活动（MVPA）参与度以及每日水果/蔬菜摄入量的变化。
调整后的干预措施包括一项通过电子邮件开展的为期12周的半随机对照试验。对原加拿大实验组（CE，n = 194）以及参与调整后项目的两组居住在加拿大的讲葡萄牙语的巴西人——巴西实验组（BE，n = 41）和巴西对照组（BC，n = 35）——的数据在基线期和干预后进行评估。对270名参与者的数据，使用双向重复测量析因协方差分析（组×时间）来分析比率变量，使用卡方检验和 McNemar 检验来分析分类变量。
干预后，BE组的MVPA（平均差值，95%CI：86.3，38.1 - 134.4分钟/周）和水果/蔬菜摄入量（3.2，1.4 - 5.1份/天）均显著增加（p均<0.001）。BE组中参与≥150分钟MVPA的参与者比例从4.9%增至73.2%，而采用健康饮食者的比例从4.9%增至53.7%（p均<0.001）。CE组在这些变量上也有所改善（p<0.05），与BE组无差异（p>0.05），而BC组未显示出变化（p>0.05）。
巴西版的“加速”项目有效地促进了参与者的积极健康行为改变，并且有可能有助于巴西人对抗慢性病风险因素。
