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Title: Effect of yoga in the modulation of heart rate variability in patients with breast cancer
Authors: Тодорова, Валентина Георгіївна
Тодорова, Валентина Георгиевна
Todorova, Valentina Heorhiivna
Odynets, Tetiana
Briskin, Yuriy
Tyshchenko, Valeria
Бондаренко, Ольга Вадимівна
Бондаренко, Ольга Вадимовна
Bondarenko, Olha Vadimovna
Keywords: breast cancer
heart rate
Issue Date: 2019
Publisher: Wydanie publikacji dofinansowane przez
Citation: Odynets, T., Briskin, Y., Todorova, V., Tyshchenko, V., and Bondarenko, O. (2019). Effect of yoga in the modulation of heart rate variability in patients with breast cancer. Advances in Rehabilitation, 33(4), pp.5-11.
Abstract: The aim of this study was to examine the effect of yoga on heart rate variability in patients with breast cancer in an outpatient rehabilitation program. Material and methods: Eighty-four patients with breast cancer were eligible for this study. After the exclusion of 7 women, 77 participants were randomly allocated to a yoga exercise program (group A, n=33) and Pilates exercise program (group B, n=44). Heart rate variability parameters were evaluated at baseline, after six and twelve months of yoga exercises. Results: After twelve months of performing yoga exercises, standard deviation of the normal-to-normal intervals (SDNN) improved by 5.53 ms (p<0.001), square root of the mean of the squared differences between adjacent normal RR interval (RMSSD) im- proved by 4.91 ms (p<0.01), total power (TP) improved by 279.78 ms2 (p<0.001), very low frequency (VLF) improved by 109.76 ms2 (p<0.01), low frequency (LF) improved by 88.38 ms2 (p<0.01), high frequency (HF) improved by 77.60 ms2 (p<0.05), and stress index (Si) improved by 137.24 c.u. (p<0.01). Based on the results after 12 months, wom- en in group A showed significantly better results compared to group B in SDNN by 3.28 ms (p<0.05), RMSSD by 3.34 ms (p<0.05), TP by 170.33 ms2 (p<0.05), HF by 64.33 (p<0.05), and Si by 56.49 c.u. (p<0.05). Conclusions: Performing the yoga exercise program resulted in an increase of the parasympathetic and baroreflex effects on the cardiovascular system and a decrease in the tonic effects of the sympathetic nervous system. Yoga should be considered as an effective tool in normalizing the functional state of the autonomic nervous system.
Appears in Collections:Кафедра гімнастики та спортивних єдиноборств

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