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Revista de la Facultad de Medicina
versión impresa ISSN 0120-0011
Resumen
BENAVIDES-PINZON, William Fernando y TORRES, José Luis. Effects of yoga (pranayama) on lung function and lactate kinetics in sedentary adults at intermediate altitude. rev.fac.med. [online]. 2017, vol.65, n.3, pp.467-472. ISSN 0120-0011. https://doi.org/10.15446/revfacmed.v65n3.56310.
Introduction:
Clinical evidence-based medicine has found increasing benefits of yoga.
Objective:
To describe the effects on lung function assessed by rest spirometry -vital forced capacity (VFC), forced expiratory volume in one second (FEV1), and FEV1/VFC ratio- in a group of apparently healthy adults, as well as to explore the effects of pranayama techniques in lactate kinetics.
Materials and methods:
Quasi-experimental study performed in sedentary adults with no prior experience in yoga practice, who received a stimulus during 12 weeks with a minimum frequency of two sessions per week. They were divided into a yoga group (YG) and a control group (CG). Body composition, blood pressure, heart rate, double product (DP), peripheral oxygen saturation (SpO2), blood lactate (Lacts), hematocrit (Htc) by micromethod, and spirometry were determined before and after a training plan with Pranayama. The variables analyzed were forced vital capacity (FVC), forced expiratory volume in one second (FEV1) and FEV1/ FVC ratio.
Results:
Significant differences were found in FVC, FEV1 and lactate among YG and CG (p<0.05), and before and after the stimulus in the YG (p<0.05). The double product improved in both groups.
Conclusions:
Targeted practice ofpranayama for 12 weeks improved FVC, FEV1, double product (p <0.05) and lactate production capacity (anaerobic capacity).
Palabras clave : Yoga; Lactic Acid; Spirometry; Altitude; Sedentary Lifestyle (MeSH).