SUMMARY. Objectives:This study was designed to investigate the effect of foot-bath
with or without the essential oil of lavender on the autonomic nervous system. Design:
Randomized crossover controlled study. Setting: Nursing college, Nagano, Japan.
Intervention:Young women sat with their feet soaked in hot water for I 0 minutes with
and without the essential oil. Outcome measures:An electrocardiogram, finger tip
blood flow and respiratory rate were recorded.Autonomic function was evaluated
using spectral analysis of heart rate variability. Results:The foot-bath caused no
changes in heart or respiratory rates, but produced a significant increase in blood flow.
Using spectral analysis, the parasympathetic nerve activity increased significantly
during the both types of foot-bath. In the case of the foot-bath with the addition of
essential oil of lavender, there were delayed changes to the balance of autonomic
activity in the direction associated with relaxation. Conclusion:A hot foot-bath and oil
of lavender appear to be associated with small but significant changes in autonomic
SUMMARY. Objectives:This study was designed to investigate the effect of foot-bathwith or without the essential oil of lavender on the autonomic nervous system. Design:Randomized crossover controlled study. Setting: Nursing college, Nagano, Japan.Intervention:Young women sat with their feet soaked in hot water for I 0 minutes withand without the essential oil. Outcome measures:An electrocardiogram, finger tipblood flow and respiratory rate were recorded.Autonomic function was evaluatedusing spectral analysis of heart rate variability. Results:The foot-bath caused nochanges in heart or respiratory rates, but produced a significant increase in blood flow.Using spectral analysis, the parasympathetic nerve activity increased significantlyduring the both types of foot-bath. In the case of the foot-bath with the addition ofessential oil of lavender, there were delayed changes to the balance of autonomicactivity in the direction associated with relaxation. Conclusion:A hot foot-bath and oilof lavender appear to be associated with small but significant changes in autonomic
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