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  Vol. 164 No. 5, March 8, 2004 TABLE OF CONTENTS
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The Effect of Tai Chi on Health Outcomes in Patients With Chronic Conditions

A Systematic Review

Chenchen Wang, MD, MSc; Jean Paul Collet, MD, PhD; Joseph Lau, MD

Arch Intern Med. 2004;164:493-501.

Objective  To conduct a systematic review of reports on the physical and psychological effects of Tai Chi on various chronic medical conditions.

Data Sources  Search of 11 computerized English and Chinese databases.

Study Selection  Randomized controlled trials, nonrandomized controlled studies, and observational studies published in English or Chinese.

Data Extraction  Data were extracted for the study objective, population characteristics, study setting, type of Tai Chi intervention, study design, outcome assessment, duration of follow-up, and key results.

Data Synthesis  There were 9 randomized controlled trials, 23 nonrandomized controlled studies, and 15 observational studies in this review. Benefits were reported in balance and strength, cardiovascular and respiratory function, flexibility, immune system, symptoms of arthritis, muscular strength, and psychological effects.

Conclusions  Tai Chi appears to have physiological and psychosocial benefits and also appears to be safe and effective in promoting balance control, flexibility, and cardiovascular fitness in older patients with chronic conditions. However, limitations or biases exist in most studies, and it is difficult to draw firm conclusions about the benefits reported. Most indications in which Tai Chi was applied lack a theoretical foundation concerning the mechanism of benefit. Well-designed studies are needed.


From the Center for Clinical Evidence Synthesis, Division of Clinical Care Research, Tufts-New England Medical Center, Boston, Mass (Drs Wang and Lau); and Center for Clinical Epidemiology and Community Studies, Jewish General Hospital, McGill University, Montreal, Quebec (Dr Collet). The authors have no relevant financial interest in this article.


RELATED LETTERS

Response to the Systematic Review of Tai Chi
Ruth E. Taylor-Piliae
Arch Intern Med. 2004;164(22):2503.
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Response to the Systematic Review of Tai Chi—Reply
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Arch Intern Med. 2004;164(22):2504.
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