Effects of Tai Chi exercise on pain, functional status, and quality of life in patients with osteoarthritis or inflammatory arthritis.

Although the change was statistically significant and the median value of Lequesne index improved from 8.50 at baseline to 6.25 in final visit, it remained in the range of severe disability not reaching the minimal clinically important difference (MCID) of 2.75; i.e., the change required for meaningful improvement.[ 31 ] The improvement in functional performance measured with HAQ-DI for participants with iA was positive, but small, thus it did not reach statistical significance.

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