Objective: To study the mechanism and effects of different scraping techniques on body surface blood perfusion volume and local skin temperature of healthy subjects and to provide a baseline for microcirculation and e...Objective: To study the mechanism and effects of different scraping techniques on body surface blood perfusion volume and local skin temperature of healthy subjects and to provide a baseline for microcirculation and energy metabolism for the evaluation of the therapeutic effects of scraping. Methods: Changes of the local blood perfusion volume and skin temperature of healthy subjects before and after applying different scraping techniques were observed with a laser Doppler imager combined with an infrared thermographic device and the resulting data was analyzed with imaging and processing software for statistical analysis. Results: Local blood perfusion volume and skin temperature all increased after both reinforcing and reducing scraping techniques. The value of blood flow 60 and 90 min after the reducing technique was significantly higher than that after the reinforcing technique (P<0.01), while the skin temperature increased after both techniques but was not significantly different between the two (P>0.05). Conclusion: Scraping can significantly improve the local blood perfusion volume, increase skin temperature and promote local blood circulation and metabolism of tissues.展开更多
Purpose 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 i...Purpose 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 anatomi-cally different areas:the skin of the forehead,fingers and toes.Methods 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.Results It was found that 5-min practices of full breathing among experienced volunteers led to similar changes in micro-circulation 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.Conclusion 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.展开更多
基金supported by a national Natural Science Foundation awarded project (81173346):Research of biological efficacy and mechanism on different techniques of scraping therapy
文摘Objective: To study the mechanism and effects of different scraping techniques on body surface blood perfusion volume and local skin temperature of healthy subjects and to provide a baseline for microcirculation and energy metabolism for the evaluation of the therapeutic effects of scraping. Methods: Changes of the local blood perfusion volume and skin temperature of healthy subjects before and after applying different scraping techniques were observed with a laser Doppler imager combined with an infrared thermographic device and the resulting data was analyzed with imaging and processing software for statistical analysis. Results: Local blood perfusion volume and skin temperature all increased after both reinforcing and reducing scraping techniques. The value of blood flow 60 and 90 min after the reducing technique was significantly higher than that after the reinforcing technique (P<0.01), while the skin temperature increased after both techniques but was not significantly different between the two (P>0.05). Conclusion: Scraping can significantly improve the local blood perfusion volume, increase skin temperature and promote local blood circulation and metabolism of tissues.
基金the Russian Science Foundation for the financial support of the studies(Project No.23-25-00522).
文摘Purpose 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 anatomi-cally different areas:the skin of the forehead,fingers and toes.Methods 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.Results It was found that 5-min practices of full breathing among experienced volunteers led to similar changes in micro-circulation 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.Conclusion 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.
