美国的视野丧失与加速度计测量的身体活动。

Visual field loss and accelerometer-measured physical activity in the United States.

机构信息

Wilmer Eye Institute, Johns Hopkins University, Baltimore, Maryland, USA.

出版信息

Ophthalmology. 2012 Dec;119(12):2486-92. doi: 10.1016/j.ophtha.2012.06.034. Epub 2012 Aug 11.

DOI:10.1016/j.ophtha.2012.06.034

PMID:22892152

Abstract

OBJECTIVE

To determine whether visual field (VF) loss is associated with lower levels of accelerometer-defined walking or physical activity in a nationally representative sample of American adults.

DESIGN

Cross-sectional study.

PARTICIPANTS

A total of 2934 adults aged 40 years or older who participated in the examination component of the 2005-2006 National Health and Nutritional Examination Survey.

METHODS

Frequency-doubling technology (FDT) testing was performed in both eyes and used to categorize subjects as having no VF loss, unilateral VF loss, or bilateral VF loss. Accelerometer data were collected over 7 days of normal activity.

MAIN OUTCOME MEASURES

Steps per day and daily minutes of moderate or vigorous physical activity (MVPA).

RESULTS

A total of 1468 participants (50.0%) had complete FDT and accelerometer data. Individuals without VF loss averaged 9751 steps/day and 20.8 minutes/day of MVPA, compared with 8023 steps/day and 14.5 minutes/day for subjects with unilateral VF loss (age-adjusted P = 0.11 and P = 0.51) and 6840 steps/day and 10.1 minutes/day for subjects with bilateral VF loss (age-adjusted P = 0.02 and 0.09, respectively). In multivariable models adjusted for age, sex, race/ethnicity, education, and several comorbid illnesses, individuals with bilateral VF loss took 17% fewer steps per day (P < 0.01) and engaged in 30% less MVPA (P = 0.02) than individuals without VF loss. No significant difference in steps per day or MVPA was observed between individuals with unilateral VF loss and no VF loss (P > 0.05). In addition to VF loss, older age, female sex, arthritis, diabetes, congestive heart failure (CHF), and stroke were significantly associated with fewer daily steps and minutes of MVPA (P < 0.05).

CONCLUSIONS

Bilateral VF loss is associated with less walking and physical activity in American adults. Patients with bilateral VF loss should be encouraged to engage safely in more physical activity.

FINANCIAL DISCLOSURE(S): The author(s) have no proprietary or commercial interest in any materials discussed in this article.

摘要

目的

在一个具有代表性的美国成年人样本中，确定视野（VF）损失是否与较低水平的加速度计定义的行走或体力活动有关。

设计

横断面研究。

参与者

共有 2934 名年龄在 40 岁或以上的成年人参加了 2005-2006 年国家健康和营养检查调查的检查部分。

方法

对双眼进行频率倍增技术（FDT）测试，并将受试者分为无 VF 损失、单侧 VF 损失或双侧 VF 损失。使用加速度计收集 7 天正常活动的数据。

主要观察指标

每天的步数和每天中等或剧烈体力活动（MVPA）的分钟数。

结果

共有 1468 名参与者（50.0%）完成了完整的 FDT 和加速度计数据。无 VF 损失的个体平均每天行走 9751 步，每天进行 20.8 分钟的 MVPA，而单侧 VF 损失的个体每天行走 8023 步，每天进行 14.5 分钟的 MVPA（年龄调整后 P = 0.11 和 P = 0.51），双侧 VF 损失的个体每天行走 6840 步，每天进行 10.1 分钟的 MVPA（年龄调整后 P = 0.02 和 0.09）。在调整年龄、性别、种族/民族、教育程度和几种合并疾病后，双侧 VF 损失的个体每天少走 17%（P < 0.01），MVPA 少进行 30%（P = 0.02），而无 VF 损失的个体（P < 0.01）。单侧 VF 损失与无 VF 损失的个体在每天的步数或 MVPA 方面没有显著差异（P > 0.05）。除 VF 损失外，年龄较大、女性、关节炎、糖尿病、充血性心力衰竭（CHF）和中风与每日步数和 MVPA 分钟数减少显著相关（P < 0.05）。