Can Tai Chi really treat Parkinson’s disease? Recent headlines have suggested that this ancient Chinese martial art and form of gentle exercise could be a game-changer for those living with Parkinson’s.
The excitement surrounding Tai Chi as a potential treatment for Parkinson’s stems from a recent study published in an offshoot of the British Medical Journal. This long-term research project followed individuals with Parkinson’s for five years, comparing a group that regularly practised Tai Chi to a control group that did not engage in the martial art.
At the end of the study, it was found that those who practised Tai Chi experienced slightly slower disease progression and required fewer medications than their non-Tai Chi practising counterparts.
On the surface, this sounds like promising news. However, a closer look at the study’s design reveals some limitations and we should interpret the news with care.
The study was a retrospective analysis of a database of individuals who had previously used a Tai Chi service. The authors of the study ran a clinic from 2016 to 2019 and tracked the progress of these patients from 2020 to 2021. They also selected a control group of individuals who engaged in little to no exercise. This means that the study was not directly comparing Tai Chi to a control group, but rather comparing individuals who had attended most of their Tai Chi sessions to those who did not exercise at all. It’s important to note that people were only included in the Tai Chi group if they had attended at least 75% of their weekly sessions, while individuals who exercised for more than 50 minutes per week were excluded from the control group.
The retrospective nature of the study further complicates the interpretation of the findings. Limited information is provided about how the control group was selected, making it difficult to determine if the comparison between the two groups was meaningful.
Additionally, the main outcome measure of the study was whether participants required additional Parkinson’s medication. While there was a small benefit for the Tai Chi group in 2019, by 2021 both groups had increased their medication dosage. The Tai Chi group did report better scores on questionnaires measuring Parkinson’s symptoms, but this could be attributed to their initial advantage over the control group at the start of the study.
In light of these study limitations, it becomes clear that drawing definitive conclusions from comparing individuals who actively choose to engage in exercise with those who do not is not scientifically sound. It is well-established that physical exercise in general is beneficial for Parkinson’s disease.
While headlines may suggest that Tai Chi is a breakthrough treatment for Parkinson’s disease, it is important to critically evaluate the scientific evidence behind these claims. The study often cited in these reports has limitations. The best available evidence indicates that exercise in general, regardless of the specific type, is beneficial for individuals with Parkinson’s.
If you enjoy Tai Chi or have found another form of exercise that suits you, by all means, continue doing what works for you. The key is to keep moving and stay active to manage the progression of Parkinson’s disease as effectively as possible.
