Effects of Hot Bath Immersion on Autonomic Activity and Hemodynamics

Abstract:The frequency of ventricular premature beats (VPBs) has been related to the risk of mortality. However, little is known about the temporal pattern of occurrence of VPBs and its relationship to autonomic activity. Hence, we applied a general correlation measure, mutual information, to quantify how VPBs are generated over time. We also used mutual information to determine the correlation between VPB production and heart rate in order to evaluate effects of autonomic activity on VPB production. We examined twenty subjects with more than 3000 VPBs/day and simulated ran-( dom time series of VPB occurrence. We found that mutual information values could be used to characterize quantitatively the temporal patterns of VPB generation. Our data suggest that VPB production is not random and VPBs generated with a higher value of mutual information may be more greatly affected by autonomic activity.

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Excavation of a Roman Bathhouse at Bothwellhaugh, 1975—76

Glasgow Archaeological Journal ◽

10.3366/gas.1981.8.8.46 ◽

1981 ◽

Vol 8 (1) ◽

pp. 46-94 ◽

Cited By ~ 3

Author(s):

L J F Keppie

Keyword(s):

Radiocarbon Dates ◽

Animal Bone ◽

Cold Room ◽

Hot Bath

Summary In 1975—76 the extra-mural bathhouse of Bothwellhaugh Roman fort near Motherwell, Lanarkshire, was completely excavated prior to flooding of the site. The bathhouse, which probably overlay a small native settlement, was in use during the Antonine phase of the Roman occupation of Scotland (AD 142—c. 165). The bathhouse consisted of a vestibule, a cold room (Frigidarium) and cold plunge bath, two warm rooms (the First and the Second Tepidarium), a hot room (Caldarium) with adjacent hot bath, and a furnace room (Praefurnium). Three main phases of use were detected. After the building ceased to function as a bathhouse, it was occupied by squatters who adapted parts of the structure to their own needs and left evidence of their presence in a large quantity of animal bone. Radiocarbon dates on this bone indicate activity in the 2nd or 3rd centuries ad.

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The Health Effects of Mercury on the Cardiac Autonomic Activity According to the Heart Rate Variability

Korean Journal of Occupational and Environmental Medicine ◽

10.35371/kjoem.2008.20.4.302 ◽

2008 ◽

Vol 20 (4) ◽

pp. 302 ◽

Cited By ~ 1

Author(s):

Sinye Lim ◽

Min Cheol Choi ◽

Kee Ock Joh ◽

Domyung Paek

Keyword(s):

Heart Rate ◽

Heart Rate Variability ◽

Health Effects ◽

Autonomic Activity ◽

Cardiac Autonomic Activity

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How Far Are We from a Hot Bath?

10.1093/oso/9780198826309.003.0002 ◽

2018 ◽

Author(s):

Lilah Grace Canevaro

Keyword(s):

New Materialism ◽

Gender Theory ◽

Thing Theory ◽

New Materialisms ◽

The Status ◽

Hot Bath

Chapter 1 places this book against a backdrop of New Materialisms, using the framework of Thing Theory in its various manifestations to unpack seemingly innocuous but in reality surprisingly loaded terms like ‘object’ and ‘agent’, and raising the question of boundaries: to what extent does the Materialist slogan ‘Things are us!’ apply to Homer? It explores the issue of representation and the substantial difference it makes to the status of objects and the location of agency, and tackles the productive tension between this book’s core approaches: Gender Theory and New Materialism. The historical and social ramifications of the book are addressed, and some initial dichotomies and categories begin to be drawn out, with a particular focus on memory.

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Comparison of autonomic activity between N2 and N3 stages of NREM sleep: evaluation through heart rate variability metrics

Sleep and Biological Rhythms ◽

10.1007/s41105-020-00305-6 ◽

2021 ◽

Author(s):

Erik L. Mateos-Salgado ◽

Fructuoso Ayala-Guerrero

Keyword(s):

Heart Rate ◽

Heart Rate Variability ◽

Nrem Sleep ◽

Autonomic Activity

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Sleep Indices and Cardiac Autonomic Activity Responses during an International Tournament in a Youth National Soccer Team

International Journal of Environmental Research and Public Health ◽

10.3390/ijerph18042076 ◽

2021 ◽

Vol 18 (4) ◽

pp. 2076

Author(s):

Pedro Figueiredo ◽

Júlio Costa ◽

Michele Lastella ◽

João Morais ◽

João Brito

Keyword(s):

Heart Rate ◽

Frequency Domain ◽

Sleep Duration ◽

Time Domain ◽

Soccer Players ◽

Autonomic Activity ◽

Male Youth ◽

Youth Soccer ◽

Wrist Actigraphy ◽

Cardiac Autonomic Activity

This study aimed to describe habitual sleep and nocturnal cardiac autonomic activity (CAA), and their relationship with training/match load in male youth soccer players during an international tournament. Eighteen elite male youth soccer players (aged 14.8 ± 0.3 years; mean ± SD) participated in the study. Sleep indices were measured using wrist actigraphy, and heart rate (HR) monitors were used to measure CAA during night-sleep throughout 5 consecutive days. Training and match loads were characterized using the session-rating of perceived exertion (s-RPE). During the five nights 8 to 17 players slept less than <8 h and only one to two players had a sleep efficiency <75%. Players’ sleep duration coefficient of variation (CV) ranged between 4 and 17%. Nocturnal heart rate variability (HRV) indices for the time-domain analyses ranged from 3.8 (95% confidence interval, 3.6; 4.0) to 4.1 ln[ms] (3.9; 4.3) and for the frequency-domain analyses ranged from 5.9 (5.6; 6.5) to 6.6 (6.3; 7.4). Time-domain HRV CV ranged from 3 to 10% and frequency-domain HRV ranged from 2 to 12%. A moderate within-subjects correlation was found between s-RPE and sleep duration [r = −0.41 (−0.62; −0.14); p = 0.003]. The present findings suggest that youth soccer players slept less than the recommended during the international tournament, and sleep duration was negatively associated with training/match load.

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Autonomic nervous system dysfunction in schizophrenia: impact on cognitive and metabolic health

npj Schizophrenia ◽

10.1038/s41537-021-00151-6 ◽

2021 ◽

Vol 7 (1) ◽

Author(s):

Nicolette Stogios ◽

Alexander Gdanski ◽

Philip Gerretsen ◽

Araba F. Chintoh ◽

Ariel Graff-Guerrero ◽

...

Keyword(s):

Metabolic Syndrome ◽

Autonomic Dysfunction ◽

Symptom Severity ◽

Sympathetic Activity ◽

Antipsychotic Treatment ◽

Autonomic Activity ◽

Autonomic Nervous System Dysfunction ◽

High Affinity ◽

Increased Risk ◽

Wide Range

AbstractSchizophrenia (SCZ) is a psychiatric disorder characterized by a wide range of positive, negative and cognitive symptoms, along with an increased risk of metabolic syndrome and cardiovascular disease that contribute to a 15–20-year reduced life expectancy. Autonomic dysfunction, in the form of increased sympathetic activity and decreased parasympathetic activity, is postulated to be implicated in SCZ and its treatment. The aim of this narrative review is to view SCZ through an autonomic lens and synthesize the evidence relating autonomic dysfunction to different domains of SCZ. Using various methods of assessing autonomic activity, autonomic dysfunction was found to be associated with multiple aspects of SCZ pathophysiology, including symptom severity, cognitive impairment, and the development of cardiometabolic comorbidities, such as metabolic syndrome and high BMI. The strongest association of low heart rate variability was noted among patients on antipsychotic treatment with high-affinity muscarinic antagonism (i.e., clozapine, olanzapine and quetiapine). The review will also suggest ways in which studying autonomic dysfunction can help reduce morbidity and mortality associated with SCZ and its treatment.

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