Using Biofeedback Nasal Breathing to Augment Relaxation Following Exposure to Mild Stress

Area of Science:

• Psychophysiology
• Stress Recovery
• Mind-Body Interventions

Background:

• Mild psychological stress negatively impacts psychological and physiological states.
• Effective recovery strategies are crucial for maintaining well-being.
• Nasal breathing techniques show potential for relaxation.

Purpose of the Study:

• To investigate if biofeedback nasal breathing aids recovery from mild stress.
• To assess the feasibility and acceptability of biofeedback nasal breathing.
• To evaluate the psychological and physiological effects of biofeedback nasal breathing.

Main Methods:

• Two studies were conducted, starting with a feasibility assessment.
• Study 2 employed a crossover design with 37 participants undergoing stress tasks (N-Back, Go/No-Go).
• Participants practiced either biofeedback nasal breathing or free breathing for six minutes between stressor exposures.

Main Results:

• Biofeedback nasal breathing increased serenity ratings and subjective capacity to doze.
• It led to a lower breathing rate compared to baseline and post-stress free breathing.
• Significant improvements in heart rate variability (HRV), including RMSSD and High Frequency (HF), were observed.

Conclusions:

• Real-time auditory feedback of nasal breathing is a feasible method for relaxation.
• Biofeedback nasal breathing potentially enhances recovery from mild psychological stress.
• This approach may offer scalable strategies for improving emotional well-being and stress resilience.