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. Author manuscript; available in PMC: 2016 Jul 18.
Published in final edited form as: Exp Physiol. 2015 Feb 12;100(4):422–434. doi: 10.1113/expphysiol.2014.083014

Figure 5. Early propagation velocity of mitral inflow (Vp) and isovolumetric relaxation time (IVRT) in young and older adults in normothermic and hyperthermic conditions.

Figure 5

Individual and group-averaged echocardiographic data. The IVRT shortened and Vp increased during hyperthermia in both young and older adults, indicating an increased rate of relaxation and suction for the left ventricle. *Significant main effect of thermal condition, P < 0.05. †Significant main effect of age, P < 0.05.