J Phys Act Health. 2020 Apr 1;17(4):404-411. doi: 10.1123/jpah.2019-0393.
The Office of Disease Prevention and Health Promotion completed research to understand factors that could encourage Americans to follow the Physical Activity Guidelines for Americans, second edition, released in 2018. This study describes survey research assessing demographic characteristics that might be related to knowledge and awareness of the guidelines.
An online survey of 2050 adult physical activity contemplators assessed knowledge of physical activity, awareness of the guidelines, and knowledge of dosage recommendations. Univariate and bivariate analyses were performed, and demographic differences in knowledge and awareness were analyzed using Pearson chi-square tests and Fisher exact tests.
Respondents had medium to high knowledge of physical activity, although knowledge varied significantly by socioeconomic factors. Knowledge of dosage recommendations was very low, with 2% and 3% of respondents correctly identifying recommended moderate- and vigorous-intensity doses, respectively. Only 22% were aware of the guidelines; awareness was greater among those with a higher education or income and those without a disability.
These findings guided the development of the Office of Disease Prevention and Health Promotion's Move Your Way campaign and reinforced the need to raise awareness of the guidelines and promote behavior change among physical activity contemplators-particularly those from lower socioeconomic groups.
疾病预防与健康促进办公室开展了一项研究，旨在了解哪些因素可能鼓励美国人遵循 2018 年发布的《美国人身体活动指南》第二版。本研究描述了一项调查研究，评估了可能与指南的知识和认知相关的人口统计学特征。
对 2050 名有身体活动意向的成年人进行了在线调查，评估他们对身体活动的了解程度、对指南的认知程度，以及对剂量推荐的了解程度。进行了单变量和双变量分析，并使用 Pearson 卡方检验和 Fisher 确切检验分析了知识和认知方面的人口统计学差异。
受访者对身体活动有中等至高度的了解，但知识水平因社会经济因素而异。对剂量推荐的了解程度非常低，分别只有 2%和 3%的受访者正确识别了推荐的中等强度和剧烈强度剂量。只有 22%的人知道该指南；受教育程度或收入较高、无残疾的人更了解该指南。
这些发现为疾病预防与健康促进办公室的“行动起来”运动提供了指导，并强调需要提高人们对指南的认识，并促进有身体活动意向的人（尤其是来自社会经济地位较低群体的人）改变行为。
