Author: Song Q1,2, Tian X1,2, Wong D3, Zhang C1,2, Sun W1,2, Cheng P4, Mao D1,3
Affiliation: <sup>1</sup>a Shanghai University of sport , Shanghai , China.
<sup>2</sup>b Shandong Institute of Sport Science , Jinan , China.
<sup>3</sup>c Shandong Sport University , Jinan , China.
<sup>4</sup>d Qingdao University , Qingdao , China.
Conference/Journal: Res Sports Med.
Date published: 2017 Apr-Jun
Other:
Volume ID: 25 , Issue ID: 2 , Pages: 197-208 , Special Notes: doi: 10.1080/15438627.2017.1282363. Epub 2017 Feb 16. , Word Count: 156
The elderly are prone to stair descent falls under low illumination. Tai Chi, a traditional Chinese conditioning exercise, has been proved to improve body stability by altering body condition, gait, and proprioception. This study investigates whether Tai Chi exercise could improve body stability during stair descent under high and low illumination. Three groups of elderly women who practice Tai Chi, brisk walking, and no exercise were included. They descended from a simulated staircase. Tai Chi participants decreased horizontal velocity, centre of mass (COM) sway, and increased foot clearance compared with other participants, these movements could increase body stability; Compared with under high illumination, Tai Chi participants decreased horizontal velocity, loading rate, braking impulse, and increased inclination angle, COM sway, centre of pressure displacement under low illumination. Tai Chi participants were more sensitive to the difference in illumination, and took corresponding strategies to stabilize their bodies during stair descent.
KEYWORDS: Aged; fall; gait; stair walking
PMID: 28367687 DOI: 10.1080/15438627.2017.1282363