Low Light Exposure and Physical Activity in Older Adults With and Without Age-Related Macular Degeneration.

ABSTRACT:

Purpose

To investigate the extent of low light exposure and associated physical activity in older adults with and without age-related macular degeneration (AMD).

Methods

Light exposure (lux) and physical activity (counts per minute, CPM) were measured in 28 older adults (14 bilateral AMD and 14 normally sighted controls) using a wrist-worn actigraphy device (Actiwatch) for 7 days and nights. Exposure to low light levels (≤10 lux) and physical activity during waking hours were determined, as well as number of brief active periods during sleeping hours (e.g., going to the bathroom). Assessments included visual acuity and the Low Luminance Questionnaire (LLQ).

Results

No significant differences were found in low light exposure (39 ± 14% vs. 34 ± 10%) or physical activity

SUBMITTER: Dev MK 

PROVIDER: S-EPMC8944400 | biostudies-literature | 2022 Mar

REPOSITORIES: biostudies-literature