Figure 2

Relationships between changes in foot sole sensation, center-of-pressure (COP) complexity, and physical function following 24 weeks of Tai Chi training in older adults with peripheral neuropathy. Improved foot sole sensation, defined as the change in the number of five tested foot sole sites on which the subject could perceive the 5.07 gauge monofilament, correlated with the percent change in the degree of COP complexity during quiet standing with closed eyes (A). The percent increase in COP complexity correlated with the percent decrease in the time needed to complete the timed up-and-go test (TUG) (B), and the percent increase in the distance covered in the 6 minute walk (6MW) test (C). The correlation between changes in traditional COP parameters (area and speed) and physical function (not pictured) were not significant.