Determinant factors of sedentary time in individuals with COPD

IF 3.5 3区医学 Q2 CARDIAC & CARDIOVASCULAR SYSTEMS

Respiratory medicine Pub Date : 2024-10-13 DOI:10.1016/j.rmed.2024.107839

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引用次数: 0

Abstract

Background

The factors influencing sedentary time (ST) of individuals with chronic obstructive pulmonary disease (COPD) have not been thoroughly explored.

Aim

To identify determinant factors of ST in individuals with stable COPD.

Methods

Individuals with COPD had their ST and variables of physical activity (PA) cross-sectionally assessed during seven days with an activity monitor. Main variables were ST/day (<1.5 METs), steps/day, time/day in light PA (light PA/day, 1.5–2.9 METs) and in moderate-to-vigorous PA (MVPA/day, ≥3 METs). Additional assessments included 6-min walking test (6MWT), Medical Research Council (MRC) scale, lung function and body composition. Multiple linear regression models were built with variables correlating significantly with ST/day.

Results

50 individuals were analyzed (44 % males; 66 ± 8 years; FEV₁ 50 ± 19%pred). ST/day was 488 ± 160 min (61 ± 15 % of the day). 6MWT, MRC scale, MVPA/day, steps/day and light PA/day correlated significantly with ST expressed as minutes/day or as % of the day. In the multiple regression analyses, variables explaining the variance of ST in minutes/day were MRC scale (1 %) and light PA/day (53 %) (model R² = .541, p < 0.001) and of ST in % of the day were steps/day (53 %) and light PA/day (46 %) (model R² = .994, p < 0.001).

Conclusion

In individuals with COPD, the variance in sedentary time can be explained by dyspnea in daily life, step count and specially time/day in light PA, which reinforces the increase in light PA (rather than necessarily MVPA) as a strategy to reduce sedentary time.

查看原文本刊更多论文

慢性阻塞性肺病患者久坐时间的决定因素。

背景：影响慢性阻塞性肺病（COPD）患者久坐时间（ST）的因素尚未得到深入探讨。目的：确定慢性阻塞性肺病稳定期患者久坐时间的决定性因素：方法：使用活动监测仪对慢性阻塞性肺病患者七天内的 ST 和体力活动（PA）变量进行横截面评估。主要变量为 ST/天（结果：50 名患者（44%）接受了分析：对 50 名患者进行了分析（男性占 44%；66 ± 8 岁；FEV1 50 ± 19%）。ST/天为 488 ± 160 分钟（61 ± 15 %）。6MWT、MRC 量表、MVPA/天、步数/天和轻度 PA/天与 ST（以分钟/天或一天的百分比表示）显著相关。在多元回归分析中，能解释以分钟/天为单位的 ST 变异的变量是 MRC 量表（1%）和轻度 PA/天（53%）（模型 R2 = .541，P 2 = .994，P 结论）：在慢性阻塞性肺病患者中，日常生活中的呼吸困难、步数和每天专门进行轻度活动的时间可以解释久坐时间的差异，这加强了增加轻度活动（而不一定是 MVPA）作为减少久坐时间的策略。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Respiratory medicine 医学-呼吸系统

CiteScore

7.50

自引率

0.00%

发文量

199

审稿时长

38 days

期刊介绍： Respiratory Medicine is an internationally-renowned journal devoted to the rapid publication of clinically-relevant respiratory medicine research. It combines cutting-edge original research with state-of-the-art reviews dealing with all aspects of respiratory diseases and therapeutic interventions. Topics include adult and paediatric medicine, epidemiology, immunology and cell biology, physiology, occupational disorders, and the role of allergens and pollutants. Respiratory Medicine is increasingly the journal of choice for publication of phased trial work, commenting on effectiveness, dosage and methods of action.