Advances in respiratory medicine · 2025
Breathing Interventions Improve Autonomic Function, Respiratory Efficiency and Stress in Dysfunctional Breathing: A Randomised Controlled Trial.
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Zaliene Laura, Mockute Alvina, Levickiene Lina
Аннотация
BACKGROUND: Dysfunctional breathing patterns may impair autonomic regulation and increase perceived stress. Breathing-based interventions, particularly those involving guided exercises and supportive tools, have the potential to provide non-pharmacological benefits.
METHODS: In this parallel two-arm randomized controlled trial, 14 women aged 35-45 years with signs of dysfunctional breathing and no comorbidities were recruited from a fitness club. Participants were randomly assigned (1:1) using a computer-generated sequence to an intervention group (n = 7) or a control group (n = 7). Blinding was not applied. Both groups completed a 6-week program of guided breathing exercises using the iBreathe app, while the intervention group additionally used mouth tape during sleep. The primary outcomes were heart rate variability (HRV) indices-root mean square of successive differences (RMSSD) and the high-frequency (HF) component. Secondary outcomes included respiratory rate, Hencho test performance, and perceived stress measured using the Perceived Stress Scale-10 (PSS-10) and a Visual Analogue Scale (VAS). All participants were included in the final analysis (no loss to follow-up).
RESULTS: The intervention group showed a significant increase in the HF component of HRV (p = 0.018) and improved Hencho test performance (p = 0.018). Both groups demonstrated significant reductions in respiratory rate (p < 0.05) and PSS scores (p < 0.05). Between-group differences were not significant for RMSSD or perceived stress. No adverse events were reported.
CONCLUSIONS: A 6-week breathing intervention improved respiratory efficiency and reduced perceived stress among women with dysfunctional breathing. The additional of night-time mouth taping provided further benefits for HRV and respiratory control. Larger and longer trials are needed to confirm these findings.
METHODS: In this parallel two-arm randomized controlled trial, 14 women aged 35-45 years with signs of dysfunctional breathing and no comorbidities were recruited from a fitness club. Participants were randomly assigned (1:1) using a computer-generated sequence to an intervention group (n = 7) or a control group (n = 7). Blinding was not applied. Both groups completed a 6-week program of guided breathing exercises using the iBreathe app, while the intervention group additionally used mouth tape during sleep. The primary outcomes were heart rate variability (HRV) indices-root mean square of successive differences (RMSSD) and the high-frequency (HF) component. Secondary outcomes included respiratory rate, Hencho test performance, and perceived stress measured using the Perceived Stress Scale-10 (PSS-10) and a Visual Analogue Scale (VAS). All participants were included in the final analysis (no loss to follow-up).
RESULTS: The intervention group showed a significant increase in the HF component of HRV (p = 0.018) and improved Hencho test performance (p = 0.018). Both groups demonstrated significant reductions in respiratory rate (p < 0.05) and PSS scores (p < 0.05). Between-group differences were not significant for RMSSD or perceived stress. No adverse events were reported.
CONCLUSIONS: A 6-week breathing intervention improved respiratory efficiency and reduced perceived stress among women with dysfunctional breathing. The additional of night-time mouth taping provided further benefits for HRV and respiratory control. Larger and longer trials are needed to confirm these findings.