ReviewPsycho-oncology2026
Comparative and Dose-Response Effects of Exercise Modalities on Sleep Quality in Individuals With Breast Cancer: A Bayesian Network Meta-Analysis.
Review in Psycho-oncology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
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Corrections and comments
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Authors and funding
9 authors.
Funding
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Abstract
objectiveTo compare the effects of exercise modalities on sleep quality in individuals with breast cancer, and to examine dose-response associations between exercise dose and sleep improvement.
methodsPubMed, Web of Science, Embase, the Cochrane Library, and EBSCO were searched from inception to March 2026. Risk of bias was assessed using RoB 2. Bayesian multilevel network meta-analysis compared exercise modalities against active controls. Meta-regression and nonlinear dose-response analyses explored effect modifiers and dose-response patterns.
resultsThirty-nine randomized controlled trials involving 4066 participants were included. Compared with active controls, Tai Chi/Qigong showed the largest sleep benefit (Hedges' g = -0.45, 95% CrI: -0.86 to -0.04), followed by yoga and combined exercise (COM; both g = -0.30). Aerobic exercise suggested possible benefit but with uncertainty, whereas resistance training, dance, and stretching showed no clear advantage. Dose-response analyses suggested greater benefits around potentially beneficial moderate-dose ranges, with exploratory estimated values of approximately 4.5 METs, 281.3 MET·min/session, and 910 MET·min/week. Higher baseline Pittsburgh Sleep Quality Index scores were associated with greater sleep improvement.
conclusionsTai Chi/Qigong, yoga, and COM may be promising exercise modalities for improving sleep quality in this population. Exercise-related sleep benefits may occur within a moderate dose window. Given the very low certainty of evidence and limited head-to-head comparisons, these findings should be interpreted cautiously and confirmed by high-quality randomized controlled trials.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.