Tai Chi and exercise both modestly improve sleep in older male cancer survivors

A Rutgers-led randomized trial found that Tai Chi Qigong and a matched exercise class each produced small, short-term sleep gains in older men after cancer treatment, but neither approach clearly outperformed the other. The results suggest movement may help some survivors sleep better, while underscoring the need for larger studies and better sleep measures.

Why it matters: - Sleep problems affect up to 60% of people after primary cancer treatment. - Poor sleep is linked to worse physical and mental health, lower quality of life, and potentially poorer cancer outcomes. - Older men with cancer have been underrepresented in insomnia research, which has mostly focused on women with breast cancer. - Cognitive behavioral therapy for insomnia is the recommended first-line treatment, but survivorship care rarely offers it because of cost and a shortage of trained providers.

What happened: - A Rutgers-led randomized controlled trial tested whether Tai Chi Qigong could improve sleep in older male cancer survivors. - The peer-reviewed study was published in Brain Medicine. - Men age 55 and older who had finished primary cancer treatment and had clinically significant fatigue were randomized to Tai Chi Qigong, a matched exercise class, or usual care. - The trial enrolled 113 men at sites in New Brunswick and Albuquerque. - The average participant age was 69. - Most participants had prostate cancer. - Both classes met twice a week for 1 hour over 12 weeks. - Participants were not told which class was the experimental condition. - The study used the labels body-mind training and body training instead of Tai Chi Qigong and exercise.

The details: - Tai Chi Qigong included 19 exercises combining breathing, flowing movement, and guided relaxation, and some movements could be done from a chair. - The comparison class was designed by exercise physiologists to match Tai Chi Qigong in intensity, posture, and muscle activation. - Attendance was strong in both active groups, at 78.4% for Tai Chi Qigong and 76.8% for matched exercise. - Participants rated both programs as similarly credible. - Sleep quality was measured with the Pittsburgh Sleep Quality Index, where lower scores mean better sleep. - At the three-month follow-up, the study’s primary endpoint for this analysis, the three groups did not differ significantly. - No pairwise comparison between groups reached significance at any time point. - The exercise group improved from baseline at six weeks, one week after the program ended, and three months later. - The Tai Chi Qigong group also improved at those time points, but the changes did not reach statistical significance. - By 12 months, sleep gains had faded in both active groups. - Sleep efficiency improved more with the exercise class than with Tai Chi Qigong at three months, but the authors cautioned that this may have been a chance finding. - At 12 months, 62% of the Tai Chi Qigong group met the questionnaire threshold for clinical remission of sleep disturbance, compared with 47% in the exercise group and 43% in usual care. - Those remission differences were not statistically significant. - Every change observed in the study fell below three points on the sleep index, which the authors say is the threshold for a clinically meaningful difference.

Between the lines: - The trial was underpowered, so it was too small to reliably detect differences between groups. - The sample was mostly White, non-Hispanic, and college-educated. - About 87% of participants had prostate cancer. - By chance, no men without prostate cancer were assigned to usual care. - Few participants were older than 80. - Men were recruited for fatigue rather than for sleep problems, so the results may not apply to survivors whose main concern is insomnia alone. - Sleep was self-reported, which adds measurement limits. - The authors recommend actigraphy or wearable devices in future studies. - Home practice logs were completed inconsistently. - The trial overlapped with the COVID-19 pandemic, although in-person and hybrid classes showed similar patterns. - The findings suggest that movement itself may matter as much as the specific style of movement, at least for short-term sleep benefits in this group.

What's next: - The authors say larger, more diverse trials are needed before clinical recommendations can follow. - Future studies should include better sleep measurement tools and more complete tracking of home practice. - The research team wants to know whether movement-based interventions can help broader groups of cancer survivors, not just older men with fatigue. - Senior author Anita Y. Kinney said the results support additional studies to better understand whether movement-based interventions can improve sleep among cancer survivors.

The bottom line: - Tai Chi Qigong and matched exercise both produced modest, temporary sleep improvements in older male cancer survivors, but neither clearly beat the other.