<qa>  What was the goal of the study?The essential eucalyptus oil has therapeutic potential in the cardiovascular system, with possibilities of acting on the autonomic tonus and reduction of cardiovascular overload. Hemodynamic conditions can change during the physical requirement and offer a framework of increased cardiovascular risk, especially for elderly individuals. In this sense, preservation strategies of cardiovascular autonomic control and demand in this population in conditions of rest andor exercise are required. The aim of this study was investigate the effect of the essential eucalyptus oil on cardiovascular responses and recovery during submaximal isometric resisted exercise series in the elderly. Twenty elderly male 69.1 5.7 years; 75.3 12.3 kg; 168.0 6.0 cm participated in this study. Were excluded from the sample the volunteers who presented some serious illness known according to the criteria of risk stratification of the American College of Sports Medicine. In random order crusade, the volunteers were subjected to: 1 trial session through the essential eucalyptus oil and inhalation; 2 session control without inhalation of essential eucalyptus oil. After the sessions 1 and 2, the volunteers remained in recovery for a period of 60 minutes, in temperature-controlled environment and comfortably seated. After this period were performed 3 sets of isometric resisted exercise on dominant upper limb in intensity of 30 of maximum voluntary contraction in 1 min each, with 1 min recovery interval. Measures of heart rate, blood pressure, rate product pressure and heart rate variability were held in the rest for 20 min, in recovery during 60 min and during the 3 sets of isometric resisted exercise. Indicators of heart rate variability were analysed from the time and the frequency domain. ANOVA two-way for repeated measurements with Post Hoc of Tukey were employed p0.05. 