Shoemaker Michael J, Kampfschulte Andrew, Rustmann Sarah, Dickinson Michael G
Department of Physical Therapy, Grand Valley State University, Grand Rapids, MI, United States; Spectrum Health, Department of Rehabilitation, Grand Rapids, MI, United States.
Spectrum Health Offices of Research & Education, United States.
Heart Lung. 2021 Nov-Dec;50(6):754-762. doi: 10.1016/j.hrtlng.2021.06.001. Epub 2021 Jul 2.
The purpose of the present study was to determine the presence and magnitude of seasonal variation in daily physical activity (PA) in those with heart failure (HF).
Retrospective study and dynamic factor analysis (DFA) of Patient Activity data from Medtronic implanted cardioverter defibrillator and cardiac resynchronization devices (ICD/CRTs).
In a data set of 435 patients, distinct states/trends were identified by DFA including a classic, sinusoidal pattern of seasonal variation and a pattern of decline over the course of 12 months, which were associated with specific clinical characteristics. Overall, model fitting was good.
Those with low comorbidities, better NYHA Class, higher BMI, no hospitalization, and male sex demonstrated greater seasonal variation of at least 40 min per day between winter (lowest PA) and spring/summer (highest PA). Those with female sex and hospitalization demonstrated overall downward trajectories of approximately 40 and 80 min, respectively, over the course of the year.
本研究的目的是确定心力衰竭（HF）患者日常身体活动（PA）的季节性变化的存在情况及程度。
对美敦力植入式心脏复律除颤器和心脏再同步治疗设备（ICD/CRT）的患者活动数据进行回顾性研究和动态因子分析（DFA）。
在一个包含435名患者的数据集里，DFA识别出了不同的状态/趋势，包括典型的正弦季节性变化模式以及在12个月期间的下降模式，这些与特定的临床特征相关。总体而言，模型拟合良好。
合并症少、纽约心脏协会（NYHA）分级较好、体重指数（BMI）较高、未住院且为男性的患者在冬季（PA最低）和春季/夏季（PA最高）之间表现出每天至少40分钟的更大季节性变化。女性和住院患者在一年中分别呈现出约40分钟和80分钟的总体下降趋势。
