scholarly journals Effects of Bergamot (Citrus bergamia (Risso) Wright & Arn.) Essential Oil Aromatherapy on Mood States, Parasympathetic Nervous System Activity, and Salivary Cortisol Levels in 41 Healthy Females

2015 ◽  
Vol 22 (1) ◽  
pp. 43-49 ◽  
Author(s):  
Eri Watanabe ◽  
Kenny Kuchta ◽  
Mari Kimura ◽  
Hans Wilhelm Rauwald ◽  
Tsutomu Kamei ◽  
...  
Keyword(s):  
Nervous System ◽  
Essential Oil ◽  
Salivary Cortisol ◽  
Parasympathetic Nervous System ◽  
Mood States ◽  
System Activity ◽  
Nervous System Activity ◽  
Parasympathetic Nervous System Activity ◽  
Healthy Females ◽  
Citrus Bergamia

scholarly journals Psychological and Antibacterial Effects of Footbath Using the Lindera umbellata Essential Oil

Molecules ◽  
2021 ◽  
Vol 26 (17) ◽  
pp. 5128
Author(s):  
Maiko Kitajima ◽  
Marika Miura ◽  
Naoki Nanashima ◽  
Toshiko Tomisawa ◽  
Shizuka Takamagi ◽  
...  
Keyword(s):  
Nervous System ◽  
Essential Oil ◽  
Parasympathetic Nervous System ◽  
Relaxation Effect ◽  
Viable Count ◽  
Mood States ◽  
Antibacterial Effects ◽  
System Activity ◽  
Nervous System Activity ◽  
Parasympathetic Nervous System Activity

Lindera umbellata (Lu) essential oil primarily contains linalool and has relaxation properties. We investigated the psychological and antibacterial effects of footbath with Lu essential oil. The participants included 20 women without medical history and received two intervention plans: footbath without any essential oil and footbath using Lu essential oil. Next, questionnaires regarding impressions and mood states were provided for them to answer. In addition, their autonomic nervous system activity was measured, and the aerobic viable of count on the feet was determined. The high-frequency value reflecting the parasympathetic nervous system activity significantly increased after footbath using Lu essential oil. In the questionnaire about the mood states, the subscale scores of tension–anxiety, depression, fatigue, and confusion after intervention were lower than those before intervention regardless of the use of the essential oil. Conversely, the anger–hostility score decreased only in the group using Lu essential oil. Furthermore, the decrease in aerobic viable count after intervention was not significantly different between the two groups. Footbath using Lu essential oil increased the parasympathetic nervous system activity and relieved anger. Taken together, we suggest that footbath using Lu essential oil has a relaxation effect.

scholarly journals Music Attenuated a Decrease in Parasympathetic Nervous System Activity after Exercise

PLoS ONE ◽  
2016 ◽  
Vol 11 (2) ◽  
pp. e0148648 ◽  
Author(s):  
Tiantian Jia ◽  
Yoshiko Ogawa ◽  
Misa Miura ◽  
Osamu Ito ◽  
Masahiro Kohzuki
Keyword(s):  
Nervous System ◽  
Parasympathetic Nervous System ◽  
System Activity ◽  
Nervous System Activity ◽  
Parasympathetic Nervous System Activity

Poincaré Plot of Heart Rate Variability Allows Quantitative Display of Parasympathetic Nervous Activity in Humans

1996 ◽  
Vol 91 (2) ◽  
pp. 201-208 ◽  
Author(s):  
Peter Walter Kamen ◽  
Henry Krum ◽  
Andrew Maxwell Tonkin
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Nervous System ◽  
Parasympathetic Nervous System ◽  
Poincaré Plot ◽  
System Activity ◽  
Nervous System Activity ◽  
Quartile Range ◽  
Short Period ◽  
Parasympathetic Nervous System Activity

1. Time domain summary statistics and frequency domain parameters can be used to measure heart rate variability. More recently, qualitative methods including the Poincaré plot have been used to evaluate heart rate variability. The aim of this study was to validate a novel method of quantitative analysis of the Poincaré plot using conventional statistical techniques. 2. Beat-to-beat heart rate variability was measured over a relatively short period of time (10–20 min) in 12 healthy subjects aged between 20 and 40 years (mean 30 ± 7 years) during (i) supine rest, (ii) head-up tilt (sympathetic activation, parasympathetic nervous system activity withdrawal), (iii) intravenous infusion of atropine (parasympathetic nervous system activity withdrawal), and (iv) after overnight administration of low-dose transdermal scopolamine (parasympathetic nervous system augmentation). 3. The ‘width’ of the Poincaré plot, as quantified by SD delta R—R (the difference between successive R—R intervals), was determined at rest (median 48.9, quartile range 20 ms) and found to be significantly reduced during tilt (median 19.1, quartile range 13.7 ms, P < 0.01) and atropine administration (median 7.1, quartile range 5.7 ms, P < 0.01) and increased by scopolamine (median 79.3, quartile range 33 ms, P < 0.01). Furthermore, log variance of delta R—R intervals correlated almost perfectly with log high-frequency (0.15–0.4 Hz) power (r = 0.99, P < 0.01). 4. These findings strongly suggest that the ‘width’ of the Poincaré plot is a measure of parasympathetic nervous system activity. The Poincaré plot is therefore a quantitative visual tool which can be applied to the analysis of R—R interval data gathered over relatively short time periods.

Sign in / Sign up

Export Citation Format

Share Document