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From Smoke to Respiratory Relief: Development, Validation and Feasibility of Pranayama-based VRBT Module for Enhancing Pulmonary Function in Biomass Smoke Exposed Women

Year: 2025
Type: article
Study design: Clinical Trial
Abstract: Background Prolonged exposure to biomass smoke is a leading cause of respiratory morbidity among women living in low and middle-income countries, resulting in progressive lung damage and increased risk for chronic respiratory diseases. Purpose To develop, validate, and evaluate the feasibility of a Pranayama-based voluntarily regulated breathing technique (VRBT) module specifically tailored for women exposed to biomass smoke. Methods The VRBT module was developed through a yoga literature review and scientific evidence, and then evaluated for content validity by 22 yoga experts using Lawshe’s CVR method. One month pre-post feasibility trial of the module was conducted among 12 rural non-smoking women mean age of 50.42 ± 8.05 years; Biomass Exposure Index ≥ 60 hour-years. Pulmonary function was measured at baseline and post-intervention using Spirometer RMS Helios 401. Statistical analyses were conducted using paired t -tests ( p < .05). Results Fourteen practices met the CVR threshold of 0.45; the final module duration is 40 minutes. After one month, significant improvements were observed in FVC (1.43 ± 0.41 L to 1.94 ± 0.37 L, p < .001), FEV1 (1.31 ± 0.40 L to 1.57 ± 0.34 L, p = .037), FEV1/FVC ratio (91.7 ± 7.96 to 80.6 ± 1.63, p < .001), and PEFR (2.83 ± 0.97 to 3.60 ± 0.96 L/s, p = .040). FEF25-75 % did not show any significant change ( p = .554). Pranayama was found to be a safe intervention with no adverse effects observed. Conclusion The module was designed for simplicity and ease of adoption by women, ensuring its accessibility. Hence, the VRBT module can be administered to the women exposed to biomass smoke.
Language: English
Field: Medicine
Open Access status: gold
Estimated APC paid: $395
OpenAlex ID: W4415853416
FWCI: 0.591
Cites: 30
Cited by: 1
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