早期身体活动的采纳预示着基线时不活跃的个体在长期内会进行更多的身体活动。
Early Physical Activity Adoption Predicts Longer-Term Physical Activity Among Individuals Inactive at Baseline.
出版信息
J Phys Act Health. 2020 Nov 3;17(12):1205-1212. doi: 10.1123/jpah.2020-0114.
BACKGROUND
To examine the relationship between early physical activity (PA) adoption (2, 3, and 4 mo) and longer-term PA adherence (1 y) among individuals who were inactive at baseline and received a lifestyle intervention.
METHODS
Participants (n = 637) received weekly behavioral weight loss sessions, calorie reduction, and PA goals (50-175 min/wk progression). PA was assessed via self-reported measures at baseline, months 2 to 4, and 1 year.
RESULTS
PA at months 2 to 4 was significantly correlated with PA at 1 year (rs = .29-.35, P < .01). At all early time points, those failing to meet the prescribed PA goal (early nonadopters) engaged in significantly less PA at 1 year than those meeting the early PA goal (initial adopters). For example, using 2-month criteria, initial adopters engaged in 108.3 minutes per week more at 1 year compared with early nonadopters (P < .01) and had 2.8 times the odds (95% confidence interval, 1.9-4.2) of meeting the 1-year PA goal (≥175 min/wk, P < .01).
CONCLUSIONS
Failure to achieve PA goals at 2, 3, or 4 months results in less overall PA at 1 year. Thus, PA observed as early as month 2 may be a useful indicator for identifying at-risk individuals who may benefit from more intensive PA intervention strategies.
背景
本研究旨在探讨基线时不活跃且接受生活方式干预的个体，早期（2、3、4 个月）开始进行身体活动（PA）与长期（1 年）PA 坚持之间的关系。
方法
参与者（n=637）接受每周行为减肥课程、卡路里减少和 PA 目标（50-175 分钟/周递增）。基线、2-4 个月和 1 年时通过自我报告的措施评估 PA。
结果
2-4 个月的 PA 与 1 年的 PA 显著相关（rs=.29-.35，P<.01）。在所有早期时间点，未能达到规定 PA 目标（早期不坚持者）的个体在 1 年时的 PA 明显少于达到早期 PA 目标的个体（初始坚持者）。例如，根据 2 个月的标准，初始坚持者在 1 年时每周多进行 108.3 分钟的 PA（P<.01），并且达到 1 年 PA 目标（≥175 分钟/周）的可能性是早期不坚持者的 2.8 倍（95%置信区间，1.9-4.2，P<.01）。
结论
未能在 2、3 或 4 个月达到 PA 目标会导致 1 年时的整体 PA 减少。因此，在 2 个月时观察到的 PA 可能是识别有风险的个体的有用指标，这些个体可能受益于更强化的 PA 干预策略。
Zotero 插件