Levels of self-reported and objective physical activity in individuals with age-related macular degeneration
Levels of self-reported and objective physical activity in individuals with age-related macular degeneration
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DOI：
10.1186/s12889-020-09255-7
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发表时间：
2020-07-20
影响因子：
4.5
通讯作者：
Pardhan, Shahina
中科院分区：
文献类型：
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作者：
Zult, Tjerk;Smith, Lee;Pardhan, Shahina
背景年龄相关性黄斑变性 (AMD) 患者的自我报告显示，他们的生活方式不太活跃。身体活动很重要，因为它已被证明可以改善生活质量、减少合并症并减缓 AMD 的进展。自我报告的身体活动测量容易出现主观偏差，因此在量化身体活动方面不太准确。本研究比较了患有 AMD 的老年人的自我报告和客观（基于加速度计）的体力活动水平和模式。方法收集了 11 名双眼视力丧失的 AMD 受试者（767 岁）、10 名双眼视力良好的 AMD 受试者（767 岁）和 11 名对照者（70 +/- 4 岁）的数据。使用视力评分建立双眼视力。还测量了对比敏感度和视野。使用全球体力活动问卷评估自我报告的久坐行为和中度至剧烈体力活动 (MVPA)。客观测量是通过连续 7 天佩戴在臀部的 Actigraph GT3X 加速度计来获得的。客观体力活动测量包括久坐行为、轻度体力活动、MVPA 和步数。结果 p id=Par 与两个 AMD 组相比，客观测量的 MVPA 对照组高出 33-34% (p < 0.05)。将目标与自我报告的身体活动测量结果进行比较表明，所有组都低估了他们的久坐行为和 MVPA，但对照组比两个 AMD 组都低估了他们的 MVPA (p
BackgroundSelf-report in people with age-related macular degeneration (AMD) shows that they lead less active lifestyles. Physical activity is important as it has been shown to improve quality of life, reduce co-morbidity and also slow down the progression of AMD. Self-reported measures of physical activity are prone to subjective biases and therefore less accurate in quantifying physical activity. This study compared self-reported and objective (accelerometer-based) physical activity levels and patterns in older adults with AMD.MethodsData were collected in 11 AMD subjects with binocular vision loss (aged 767years), 10 AMD subjects with good binocular vision (aged 767years), and 11 controls (aged 70 +/- 4years). Binocular vision was established using visual acuity score. Contrast sensitivity and visual fields were also measured. Self-reported sedentary behaviour and moderate-to-vigorous physical activity (MVPA) was assessed using the Global Physical Activity Questionnaire. Objective measurements were obtained with an Actigraph GT3X accelerometer being worn for seven consecutive days on the hip. The objective physical activity measures were sedentary behaviour, light physical activity, MVPA, and step count.Results p id=Par Objectively measured MVPA was 33-34% higher for controls compared to both AMD groups (p 0.05). Comparing the objective with the self-report physical activity measure showed that all groups under-reported their sedentary behaviour and MVPA, but controls under-reported their MVPA more than both AMD groups (p