Exercise Hemodynamic Laboratory, School of Physical Education and Sport, University of São Paulo, São Paulo, Brazil.
Motor Behavior Laboratory, School of Physical Education and Sport, University of São Paulo, São Paulo, Brazil.
Prev Chronic Dis. 2021 Feb 25;18:E18. doi: 10.5888/pcd18.200115.
Regular physical activity (PA) practice is a way to combat cardiovascular disease, and a PA interventional program, including individualized prescription of walking with limited supervision of execution, may be a strategy to be applied in public parks. Thus, our study tested the effects of a real-world program like this on cardiovascular risk and cardiorespiratory fitness (CF) of the users of a public park.
Data came from the Exercise and Heart Project, a real-life park-based PA interventional program. The study phases were 1) a preintervention evaluation; 2) the individualized prescription of PA; 3) the supervision of the first practice sessions; 4) the unsupervised execution of the prescription; and 5) a postintervention evaluation.
Data from 152 participants (mainly women and aged 40 to 80 years) were analyzed. The intervention significantly increased CF (mean [standard deviation], 99 [19] steps vs 110 [21] steps, P < .001) and reduced body mass index, waist circumference, and systolic blood pressure, decreasing global cardiovascular risk (mean [standard deviation], 0.15 [2.84] vs -0.52 [2.60]; P < .001). The effects of intervention on cardiovascular risk were not different between the participants with low and high initial CF or PA levels.
The proposed real-life park-based PA interventional program decreased cardiovascular risk of the participants independently of their initial PA or CF levels.
定期进行身体活动（PA）是预防心血管疾病的一种方式，而 PA 干预计划，包括在有限监督下执行的个性化步行处方，可能是在公园中应用的一种策略。因此，我们的研究测试了这种现实世界项目对公园使用者心血管风险和心肺功能（CF）的影响。
数据来自于“锻炼与心脏计划”，这是一个基于公园的真实 PA 干预计划。研究阶段包括：1）干预前评估；2）PA 的个性化处方；3）首次练习的监督；4）处方的非监督执行；5）干预后评估。
分析了 152 名参与者（主要为女性，年龄 40 至 80 岁）的数据。干预显著提高了 CF（平均[标准差]，99[19]步 vs 110[21]步，P<.001），降低了体重指数、腰围和收缩压，降低了整体心血管风险（平均[标准差]，0.15[2.84] vs -0.52[2.60]；P<.001）。干预对心血管风险的影响在初始 CF 或 PA 水平较低和较高的参与者之间没有差异。
该现实生活中基于公园的 PA 干预计划降低了参与者的心血管风险，与他们的初始 PA 或 CF 水平无关。
