Document Type

Article

Publication Date

2019

DOI

10.5114/hm.2019.85094

Publication Title

Human Movement

Volume

20

Issue

4

Pages

8-18

Abstract

Purpose.

Although walking gait in sighted populations is well researched, few studies have investigated persons with visual impairments (VIs). Given the lack of physical activity in people with VIs, it is possible that reduced efficiency in walking could adversely affect activity. The purposes of this preliminary study were to (1) examine the biomechanics and energetics utilized during independent and guided walking in subjects with VIs, and (2) compare gait biomechanics between people with VIs and sighted controls.

Methods.

Three-dimensional motion capture and force platforms were used during independent and guided walking at self-selected speeds. Joint angles, moments, external work, and recovery were compared.

Results.

The VI group performed independent walking slower and with reduced stride lengths compared with guided walking and sighted controls. Hip range of motion and peak joint moments were reduced during independent walking in the VI group compared with guided walking and controls. Work was greater by 114%, 32%, and 16% in the VI group during independent than during guided walking. Recovery was 11% greater in guided vs. independent walking.

Conclusions.

In the presented preliminary study among 3 persons with congenital VIs, independent walking was a less efficient mode of walking compared with guided walking and that of sighted controls.

Comments

© University School of Physical Education in Wrocław.

This is an Open Access journal distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 (CC BY-NC-ND 4.0), allowing third parties to download and share its works but not commercially purposes or to create derivative works.

Original Publication Citation

Bennett, H., Valenzuela, K., Fleenor, K., Morrison, S., & Haegele, J. (2019). Walking biomechanics and energetics of individuals with a visual impairment: A preliminary report. Human Movement, 20(4), 8-18. https://doi.org/10.5114/hm.2019.85094

ORCID

0000-0001-7485-0305 (Morrison), 0000-0002-8580-4782 (Haegele)

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