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  • Title: Comparative impacts of Tai Chi, balance training, and a specially-designed yoga program on balance in older fallers.
    Author: Ni M, Mooney K, Richards L, Balachandran A, Sun M, Harriell K, Potiaumpai M, Signorile JF.
    Journal: Arch Phys Med Rehabil; 2014 Sep; 95(9):1620-1628.e30. PubMed ID: 24835753.
    Abstract:
    OBJECTIVE: To compare the effect of a custom-designed yoga program with 2 other balance training programs. DESIGN: Randomized controlled trial. SETTING: Research laboratory. PARTICIPANTS: A group of older adults (N=39; mean age, 74.15 ± 6.99 y) with a history of falling. INTERVENTIONS: Three different exercise interventions (Tai Chi, standard balance training, yoga) were given for 12 weeks. MAIN OUTCOME MEASURES: Balance performance was examined during pre- and posttest using field tests, including the 8-foot up-and-go test, 1-leg stance, functional reach, and usual and maximal walking speed. The static and dynamic balances were also assessed by postural sway and dynamic posturography, respectively. RESULTS: Training produced significant improvements in all field tests (P<.005), but group difference and time × group interaction were not detected. For postural sway, significant decreases in the area of the center of pressure with eyes open (P=.001) and eyes closed (P=.002) were detected after training. For eyes open, maximum medial-lateral velocity significantly decreased for the sample (P=.013). For eyes closed, medial-lateral displacement decreased for Tai Chi (P<.01). For dynamic posturography, significant improvements in overall score (P=.001), time on the test (P=.006), and 2 linear measures in lateral (P=.001) and anterior-posterior (P<.001) directions were seen for the sample. CONCLUSIONS: Yoga was as effective as Tai Chi and standard balance training for improving postural stability and may offer an alternative to more traditional programs.
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