Optimal Tai Chi forms in knee osteoarthritis: An exploration from biomechanical rationale to pain reduction

Author: Feng Yang1, Jonathan Gelfond2, Donald McGeary2, Allen Perkins3, Alison A Moore4, Lixin Song5, Agustín Escalante2, Wei Liu6
Affiliation:
1 Department of Kinesiology and Health, Georgia State University, Atlanta, GA, 30303, USA.
2 School of Medicine, University of Texas Health Science Center at San Antonio, San Antonio, TX, 78229, USA.
3 School of Medicine, University of South Alabama, AL, 36688, USA.
4 School of Medicine, University of California, San Diego, CA, 92093, USA.
5 School of Nursing, University of Texas Health Science Center at San Antonio, San Antonio, TX, 78229, USA.
6 School of Health Professions, University of Texas Health Science Center at San Antonio, San Antonio, TX, 78229, USA.
Conference/Journal: Osteoarthr Cartil Open
Date published: 2024 May 10
Other: Volume ID: 6 , Issue ID: 3 , Pages: 100480 , Special Notes: doi: 10.1016/j.ocarto.2024.100480. , Word Count: 253


Objectives:
Tai Chi (TC) shows some beneficial effects in reducing pain in knee osteoarthritis (OA). However, the selection of criteria TC forms in previous studies were unclear and inconsistent, possibly accounting for the varying outcomes and rendering the training effects suboptimal. We have selected four optimal TC (OTC) forms based on the knee joint load and its association with pain. This pilot study sought to examine the effect of the OTC forms on reducing knee pain in individuals with knee OA.

Methods:
Fifteen knee OA participants were recruited. Their knee joint pain level was rated by using the Visual Analogue Scale before and after two weeks of OTC training and compared between these two assessments.

Results:
The two-week OTC training course was well accepted by our participants. The knee OA pain showed a significant reduction (median pain score: 5 ​cm before training and 1 ​cm post-training, Wilcoxon p ​< ​0.001) after the two-week training program.

Conclusions:
Our pilot results revealed that the 2-week four-form-based OTC program could significantly reduce the knee pain level in people with knee OA. Additionally, our OTC program appears to be about 50% more effective in reducing knee pain than the existing TC-based program, which uses 10 ​TC forms over 12 weeks (1.59 vs. 1.06 in Hedge's g). The findings in this study may inform the development of OTC-based knee pain reduction programs and the design of relevant clinical trials to establish OTC's effectiveness, safety, and dose-response relationship in easing knee OA pain.

Keywords: Knee joint biomechanics; Optimizing Tai Chi; Pain.

PMID: 38800823 PMCID: PMC11126833 DOI: 10.1016/j.ocarto.2024.100480

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