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Research on Tai Chi as a sport in health care

The challenge of complex interventions

Forschung über Tai Chi im Gesundheitssport

Die Herausforderung komplexer Interventionen

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Abstract

This article examines the content and methodology of studies on Tai Chi as a sport in health care. We investigate the concept behind the rather simple name “Tai Chi,” concluding that this concept is manifold and highly variable. How did researchers deal with this variability when studying the effects of Tai Chi as a health-care intervention? We then explore how scientific research on Tai Chi has been conducted to date and draw the interim conclusion that the variability was barely taken into consideration. Our analysis of seven Tai Chi interventions reveals that two interventions referred to as Tai Chi may differ considerably in their content. The variability poses difficulty in repeating the intervention and drawing causal inferences. This problem is discussed in the current literature under the term “complexity in health-care interventions.” On the basis of a summary of this debate, we discuss the challenge of researching Tai Chi from a complex perspective—with the aim of achieving solid results that can be repeated.

Zusammenfassung

Was bedeutet es inhaltlich und methodologisch, Tai Chi als Intervention im Gesundheitssport zu erforschen? Wir untersuchen das Konzept, das sich hinter dem Begriff Tai Chi verbirgt und stellen fest, dass dieses Konzept höchst variabel und vielfältig ist. Auf welche Weise findet diese Variabilität in der Erforschung von Tai Chi als Intervention im Gesundheitssport Berücksichtigung? Wir untersuchen daraufhin, wie Tai Chi bisher wissenschaftlich erforscht wurde und ziehen die Zwischenbilanz, dass die Variabilität der Interventionen kaum Berücksichtigung fand. Unsere beispielhafte Analyse von sieben Interventionen lässt erkennen, dass zwei Interventionen, die beide als Tai Chi bezeichnet werden, inhaltlich sehr unterschiedlich sein können. Die Variabilität stellt uns vor die Schwierigkeit, die Intervention zu wiederholen und kausale Zusammenhänge abzuleiten. Dieses Problem wird aktuell unter dem Begriff Komplexität in der Gesundheitsforschung diskutiert. Auf Basis einer Zusammenfassung dieser Debatte diskutieren wir die Herausforderung, Tai Chi aus einer komplexen Perspektive zu erforschen – mit dem Ziel, zu belastbaren Ergebnissen zu kommen, die replizierbar sind.

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Notes

  1. We did not include the two reviews on methodology in Tai Chi research. Both articles delineated the challenge of complexity within Tai Chi and are referred to in our discussion on this topic in Sect. 5.

  2. Here, the goal of the Tai Chi intervention itself is meant (as opposed to the aim of the study that was addressed above). Reporting of this criterion may help to distinguish between a Tai Chi intervention as a means to achieving a particular goal (such as balance improvement) versus a Tai Chi intervention aimed at practicing principles of Tai Chi.

  3. A review on the variability within Tai Chi practice could investigate the hypothesis of the study, styles, and forms researched, the intensity of the program, the methodology of teaching, or the reaction of the participants, for example.

  4. Pragmatic trials aim to better reflect clinical practice in real life than standardized explanatory trials are able to and they allow for individualized treatment approaches.

  5. The goal of the summary was to clarify the problems that are addressed with the term complex intervention. Since the limitations of RCTs are tightly connected to the discussion on complexity within healthcare interventions, they form a major part of this summary. As our overview is oriented toward the challenges of complexity, we refrained from summarizing the importance of RCTs for inferential conclusions. We affirm that this section is not intended to question the legitimation and importance of RCTs in general.

  6. The article “Tai chi and postural stability in patients with Parkinson’s disease” by Li, Harmer and Fitzgerald (2012) may serve as guidance for thorough planning and reporting.

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Correspondence to Janina Burschka.

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Burschka, J., Kuhn, P., Menge, U. et al. Research on Tai Chi as a sport in health care. Sportwiss 43, 181–196 (2013). https://doi.org/10.1007/s12662-013-0300-1

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