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Radial Pulse and Electrocardiography Modulation by Mild Thermal Stresses Applied to Feet: An Exploratory Study with Randomized, Crossover Design

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Chinese Journal of Integrative medicine 2020年第4期26卷 299-306页

作者： Jang-Han Bae Boncho Ku Young Ju Jeon Hyunho Kim Jihye Kim Haebeom Lee Jong Yeol Kim Jaeuk U.Kim korea n medici ne fun dame ntal research divisi on Korea Institute of Oriental MedicineDaejeon(34054)Republic of Korea Department of Biofunctional medicine and Diagnostics College of Korea n MedicineKyung Hee UniversitySeoul(02453)Republic of Korea Department of Human Informatics of korean medicine Interdisciplinary ProgramsKyung Hee UniversitySeoul(02453)Republic of Korea

Objective:To investigate the changes in radial pulse induced by thermal stresses(TSs).Methods:Sixty subjects were *** an open-label,2x2 crossover randomization design,both feet of each subject were immersed in 15%:water for cold stress(CS)and in 40 X:water for heat stress(HS)for 5 min *** pulse,respiration and electrocardiogram(ECG)signals were recorded before,during and immediately after the ***:The an alysis of heart rate variability revealed that CS in creased the low-freque ncy(LF)and high-frequency(HF)components(Pnd that HS reduced the LF and HF components(Pnormalized LF,increased the normalized HF,and reduced the LF/HF *** differences in the ECG signals were more dominant during the TS sessions,but those in the radial pulse signals became more domi nant immediately after the TS sessi *** decreased the pulse depth(Pnd in creased the radial augme ntation in dex(Pnd HS in creased the pulse pressure(Pnd sube ndocardial viability ratio(Pno significant differences in pulse rate during the three time sequences of each *** respiration rate was increased(Pnd the pulse rate per respiration(P/R ratio)was significantly decreased(Pn(10-30 Hz)of the pulse spectral density was suppressed during both ***:CS induced vasoconstriction and sympathetic reactions,and HS induced vasodilation and parasympathetic reacti *** on defi nitions used in pulse diag no sis,we made the novel discoveries that the pulse became slower(decreased P/R ratio),more floating and tenser under CS and that the HF region of the spectral power decreased significantly under both TSs.

关键词： radial pulse pulse diag no sis thermal stress electrocardiography heart rate variability

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