Department of Exercise Science, Bellarmine University, Louisville, KY 40205, USA.
Res Q Exerc Sport. 2012 Sep;83(3):422-30. doi: 10.1080/02701367.2012.10599877.
The purpose of this study was to examine the influence of child and adult cut-points on physical activity (PA) intensity, the prevalence of meeting PA guidelines, and association with selected health outcomes. Participants (6,578 adults > or = 18 years, and 3,174 children and adolescents < or = 17 years) from the National Health and Nutrition Examination Survey 2003-06 (Centers for Disease Control and Prevention, 2006) wore an accelerometer for 7 days. PA intensity was estimated with 5 child-derived and 12 adult-derived cut-points. For all, the cut-point influenced PA intensity and the prevalence of meeting PA guidelines. Similarly, cut-point selection influenced the relationship between physical activity and various health outcomes. Future research should further enhance meaningful cut-points relevant to populations with diverse health and age profiles.
本研究旨在探讨儿童和成人切点对身体活动（PA）强度的影响、符合 PA 指南的流行率，以及与选定健康结果的关联。参与者来自 2003-06 年全国健康和营养检查调查（疾病控制和预防中心，2006 年）（6578 名成年人≥18 岁，3174 名儿童和青少年≤17 岁），他们佩戴加速度计 7 天。PA 强度用 5 个儿童衍生和 12 个成人衍生切点进行估计。对于所有切点，切点都影响 PA 强度和符合 PA 指南的流行率。同样，切点选择也影响了身体活动与各种健康结果之间的关系。未来的研究应进一步加强与具有不同健康和年龄特征的人群相关的有意义的切点。
