Tai Chi exercise improves sleep quality in older adults with mild insomnia by enhancing slow-wave activity during deep sleep: a 12-week randomized controlled trial.

Front Physiol · 2026 · PMC13124547 · PMID 42064550

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0.0510

closest p · 1.0× alpha

0.0700

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a decreasing trendP = 0.051so close (0.05 < p ≤ 0.1)

The effect of Tai Chi on improving subjective sleep quality in older adults This study confirmed through PSQI and sleep diaries that 12-week Tai Chi intervention can significantly improve the subjective sleep quality of older adults, characterized by improved sleep quality, and the number of nocturnal awakenings showed a decreasing trend without statistical significance ( P = 0.051), which is consistent with the results of several studies ( Chen et al., 2025b ; Siu et al., 2021 ; Li et al., 2020 ).

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marginally significantP = 0.07so close (0.05 < p ≤ 0.1)

PSG results showed that the proportion of deep sleep stage (N3) in the Tai Chi group increased by 23.1%, delta wave power (0.5-4Hz) was significantly enhanced ( P < 0.01), and sleep spindle density (N2 stage) increased by 6.0% ( P = 0.07, marginally significant), while no significant changes were observed in sleep indicators of the control group.

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