TY  - JOUR
PY  - 2017//
TI  - Effects of Tai Chi exercise on body stability among the elderly during stair descent under different levels of illumination
JO  - Research in sports medicine
A1  - Song, Qipeng
A1  - Tian, Xuewen
A1  - Wong, Del
A1  - Zhang, Cui
A1  - Sun, Wei
A1  - Cheng, Peng
A1  - Mao, Dewei
SP  - 197
EP  - 208
VL  - 25
IS  - 2
N2  - 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.<p />  <p>Language: en</p>
LA  - en
SN  - 1543-8627
UR  - http://dx.doi.org/10.1080/15438627.2017.1282363
ID  - ref1
ER  -