Key result
Five-minute full breathing exercises linked to increased skin perfusion and extremity nutritive blood flow.
Why the study?
Breathing exercises from yoga are integrated into athletic training, but their influence on peripheral blood flow across anatomically distinct areas remains to be characterized.
Do 5-minute full breathing exercises alter peripheral blood flow and microcirculation in experienced volunteers?
Observational
Do 5-minute full breathing exercises alter peripheral blood flow and microcirculation in experienced volunteers?
Breathing exercises that alter minute ventilation acutely increase peripheral skin blood perfusion and extremity nutritive blood flow via endothelial and neurogenic mechanisms.
Answers are grounded in this paper and cite their sources.
Acute breathing effects on microcirculation should not change practice; leaves open generalizability and clinical relevance in broader populations.
Performing yoga exercises in addition to basic training helps athletes to improve their results. At the same time, yoga exercises, including Hatha yoga, which involves controlling one’s breathing, are integrated into the training process. This work is devoted to study the influence of breathing exercises, with the decrease and increase in the minute volume of breathing with corresponding changes in gas exchange, on peripheral blood flow, spirometry, and gas analysis in anatomically different areas: the skin of the forehead, fingers and toes. Volunteers performed full breathing exercises, which led to the decrease and increase in the minute volume of breathing with corresponding changes in gas exchange. Blood microcirculation was recorded using laser Doppler flowmetry (LDM) analyzers in the skin of the forehead, fingers and toes. Additionally, spirometry and gas analysis were used. It was found that 5-min practices of full breathing among experienced volunteers led to similar changes in microcirculation parameters, namely, an increase in the skin blood perfusion in all areas, as well as an increase in nutritive blood flow only in the extremities (fingers and toes). Reducing the minute volume of breathing leads to an increase in amplitudes of endothelial and neurogenic oscillations during the recovery period, but increasing the minute volume of breathing leads to an increase in amplitudes of neurogenic oscillations during that same period. The study of the blood microcirculation behavior during breathing exercises and its correlation is useful both for obtaining fundamental knowledge of oxygen delivery to biological tissues in various breathing modes and for evaluating the efficacy of breathing exercises in sports training and rehabilitation. Changes in lung ventilation and the corresponding shifts in gas exchange affect the active mechanisms of blood microcirculation regulation. This stimulation occurs through endothelial mechanisms during reduced minute volume of breathing with hypoxia and hypercapnia, as well as neurogenic mechanisms both in increased and decreased lung ventilation.
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Frolov et al. (2024) reported an observational. Full breathing exercises (decreasing and increasing minute volume of breathing) was evaluated on Microcirculation parameters (skin blood perfusion and nutritive blood flow) in the forehead, fingers, and toes. Five-minute practices of full breathing exercises increased skin blood perfusion in all measured areas and increased nutritive blood flow in the extremities among experienced volunteers.
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