1. Standing Balance After Vestibular Stimulation in Tai Chi–Practicing and Nonpracticing Healthy Older Adults 
William W. Tsang, PhD, Christina W. Hui-Chan, PhD 
Archives of Physical Medicine and Rehabilitation 
Volume 87, Issue 4, Pages (April 2006)
DOI: /j.apmr
Copyright © 2006 American Congress of Rehabilitation Medicine and the American Academy of Physical Medicine and Rehabilitation Terms and Conditions

2. Fig 1
(A) A subject seated on the rotational chair with her head stabilized at 30° from the horizontal plane. (B) Spatial orientation of the 3 semicircular canals. The horizontal semicircular canals are located 30° above that of the horizontal plane.
Archives of Physical Medicine and Rehabilitation  , DOI: ( /j.apmr )
Copyright © 2006 American Congress of Rehabilitation Medicine and the American Academy of Physical Medicine and Rehabilitation Terms and Conditions

3. Fig 2
The mean values of body sway measures before and after vestibular stimulation between Tai Chi practitioners and control subjects. The parenthesis denotes the P values after statistical analysis of the percentage increases in (A) total sway path, (B) peak amplitude and mean velocity of AP body sway, and (C) peak amplitude and mean velocity of ML body sway between the 2 groups using univariate tests.
Archives of Physical Medicine and Rehabilitation  , DOI: ( /j.apmr )
Copyright © 2006 American Congress of Rehabilitation Medicine and the American Academy of Physical Medicine and Rehabilitation Terms and Conditions