July 2018
Volume 59, Issue 9
Open Access
ARVO Annual Meeting Abstract  |   July 2018
Exploring barriers to physical activity faced by people with vision loss
Author Affiliations & Notes
  • Antonio Filipe Macedo
    Medicine and Optometry, Linnaeus University, Kalmar, Sweden
    Centre of Physics and Optometry (Vision Rehabilitation Lab.), Universidade do Minho, Braga, Portugal
  • Diana Santos
    Centre of Physics and Optometry (Vision Rehabilitation Lab.), Universidade do Minho, Braga, Portugal
  • Laura Hernández_Moreno
    Centre of Physics and Optometry (Vision Rehabilitation Lab.), Universidade do Minho, Braga, Portugal
  • Marta Leitao
    Centre of Physics and Optometry (Vision Rehabilitation Lab.), Universidade do Minho, Braga, Portugal
  • Keziah Latham
    Department of Vision & Hearing Sciences, Anglia Ruskin University, Cambridge, United Kingdom
  • Joao Linhares
    Centre of Physics and Optometry (Vision Rehabilitation Lab.), Universidade do Minho, Braga, Portugal
  • Footnotes
    Commercial Relationships   Antonio Macedo, None; Diana Santos, None; Laura Hernández_Moreno, None; Marta Leitao, None; Keziah Latham, None; Joao Linhares, None
  • Footnotes
    Support  The study received support from the Portuguese Foundation for Science and Technology (FCT) -POCTI & FSE -- grants: PTDC/DPT-EPI/0412/2012 and UID/FIS/04650/2013
Investigative Ophthalmology & Visual Science July 2018, Vol.59, 1070. doi:
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    • Get Citation

      Antonio Filipe Macedo, Diana Santos, Laura Hernández_Moreno, Marta Leitao, Keziah Latham, Joao Linhares; Exploring barriers to physical activity faced by people with vision loss. Invest. Ophthalmol. Vis. Sci. 2018;59(9):1070.

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      © ARVO (1962-2015); The Authors (2016-present)

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Abstract

Purpose : People who are visually impaired (VI) have high rates of physical inactivity, and therefore an increased risk of developing diseases associated with a sedentary lifestyle. The aim of this study was to determine which traits and external factors can impact physical activity (PA) amongst people with VI.

Methods : A study with The Physical Activity Barrier Scale (PABS) was conducted with 30 subjects with VI (VIg) recruited in a department of Ophthalmology (HSMM, Portugal). The questionnaire was administered by telephone to the VIg participants and an equal number of age and gender matched controls (CTRLg). The PABS inventory consists of 48 questions, divided into 8 categories. For each question the participant rates how often (never, often, very often) the item is a barrier to PA. Responses were Rasch analysed
using Winsteps (v4.0).

Results : Acuity (mean±se; logMAR) was 0.70±0.35 (VIg) and 0.00±0.06 (CTRLg). Age in years was 68±16 in both groups. Contrast sensitivity in logCS was 1.34±0.06 (VIg) and 1.68±0.02 (CTRLg). The main cause of VI was diabetic retinopathy. Person measures (PM) in logits for the entire 48 items of PABS were 1.15±0.20 (VIg) and 1.71±0.30 (CTRLg), with a higher score indicating higher ability to PA (less barriers), the difference between groups was not statistically significant. Differences between groups for the 8 categories within the PABS were examined separately using summed scores. Significant differences (Mann-Whitney test) were observed for VISUAL-IMPAIRMENT (p=0.04), SOCIAL-INFLUENCE (p=0.03) and SAFETY (p=0.01).

Conclusions : People with VI frequently find barriers to PA. Items related to vision, safety and social influence affect people with visual impairment to a greater extent than controls. Barriers to PA should be considered when planning visual rehabilitation.

This is an abstract that was submitted for the 2018 ARVO Annual Meeting, held in Honolulu, Hawaii, April 29 - May 3, 2018.

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