About 7–day (circaseptan) and circadian changes in cold pressor test (CPT)

Lee, Mary S.; Lee, John S.; Lee, Jong Yeon; Cornélissen, Germaine; Otsuka, Kuniaki; Halberg, Franz

doi:10.1016/j.biopha.2003.08.006

Cited by 9 publications

(10 citation statements)

References 30 publications

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“…The unvarying weekly cycles of even length are a social construct [Zerubavel 1989: 10]. Biological processes that influence human physical well-being, such as blood pressure, do, however, exhibit weekly cycles [Lee et al 2003]. This suggests that human life has adapted to the weekly cycle.…”

Section: Resultsmentioning

confidence: 99%

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The Mid-week Effect and Why Thursdays Are Blue: The Weekly Rhythm of Satisfaction in Hungary

Keller¹

2018

Czech Sociological Review

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Abstract:Research on the weekly fluctuation in people's satisfaction has produced mixed results about the nadir of levels of satisfaction in different countries. This paper uses a Hungarian household survey with approximately 3400 individual observations. The fluctuation in satisfaction over the course of the week is assessed according to the day on which the personal interview was conducted during a six-week period of fieldwork. The analysis investigates the extent to which this is the result of a random process. Unlike previous analysis, the nadir in satisfaction (in Hungary) is found to occur midweek. This is explained as being related to workload. The results are robust after controlling for the interviewers' unobserved characteristics or the hour of completion of the interview. Modification in workdays owing to national holidays did not alter the results. The results reveal which social groups are especially vulnerable to fluctuations in satisfaction. This could have practical consequences for a more efficient work-life balance. The paper suggests questions for future research, which in particular should seek to understand differences between nations in terms of the nadir of satisfaction and to find a solution to the self-selection problem that may result in an underestimation of the true size of the weekly nadir. Keywords: weekly rhythm in satisfaction, day-of-the-week effect, mid-week effect, satisfaction with life

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Section: Resultsmentioning

confidence: 99%

“…Exploring rhythms in satisfaction has implications for future research, since many human biological processes exhibit a weekly cycle [Lee et al 2003]. The suicide rate also fluctuates according to a weekly pattern and is higher on 'work days' [Beauchamp et al 2014;Maldonado and Kraus 1991].…”

Section: Introductionmentioning

confidence: 99%

The Mid-week Effect and Why Thursdays Are Blue: The Weekly Rhythm of Satisfaction in Hungary

Keller¹

2018

Czech Sociological Review

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“…Measurements were made for 16 days, except during bathing, from 1 day before VAT until 1 day after VAT ended. A circaseptan rhythm is a cycle consisting of 7 days in which many biological processes of life resolve, for example blood pressure and heart rate [24][25][26] . Therefore this test was used to determine each patient's circaseptan rhythm.…”

Section: Methodsmentioning

confidence: 99%

Effects of Vibroacoustic Therapy on Elderly Nursing Home Residents with Depression

et al. 2012

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Abstract.[Purpose] The objective of this study was to investigate whether vibroacoustic therapy (VAT) could improve the psychological symptoms of 15 elderly nursing home (NH) residents with symptoms of depression.[Methods] Fifteen subjects received VAT for 30 minutes per day for 10 days. Depression was evaluated using the Dementia Mood Assessment Scale (DMAS). Tympanic temperature, pulse, blood pressure, and SpO 2 were measured as physiological indexes of relaxation. In addition, sleep-wake rhythms of the 15 subjects were evaluated using actigraphy.[Results] Based on DMAS scores, mitigation of depression was observed in NH residents after receiving VAT. Moreover, significant decreases in tympanic temperature and pulse were observed after treatment. Total sleeping hours per day showed a significant decrease when mean sleeping hours in the first week were compared with the mean sleeping hours in the second week.[Conclusion] VAT provided relaxation effects for elderly NH residents, and improved depressive symptoms.

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“…To further control for circaseptan alterations (Bodis, Boncz, & Kriszbacher, in press;Lee, Lee, Lee, Corne´lissen Otsuka, & Halberg, 2003;Maschke, Harder, Corne´lissen, Hecht, Otsuka, & Halberg, 2003), both examinations were conducted with 2 weeks in between. Salivary samples were repeatedly collected with salivettes (Sarstedt, Sevelen, Switzerland) before, during, and after the interventions by collecting unstimulated whole saliva: immediately before the MIST-S and MIST-C instruction, during the third block, and up to 60 min after the completion of the MIST ( Figure 1A).…”

Section: Methodsmentioning

confidence: 99%

Association between Cold Face Test‐induced vagal inhibition and cortisol response to acute stress

et al. 2011

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Low vagal function is related to several disorders. One possible underlying mechanism linking the vagus nerve and disorders is the HPA axis. Thirty-three healthy male subjects participated in a stress task, while heart rate (HR), respiratory sinus arrhythmia (RSA), salivary cortisol, and mood were assessed. Vagal function was determined using baseline, stress-induced inhibition, and Cold Face Test (CFT)-induced stimulation. The stress task induced a significant increase in cortisol and HR, a decrease in RSA, and a worsening of mood. A linear regression model with the time from CFT onset until maximum bradycardia as the independent variable explained 17.9% of the total variance in cortisol in response to the stressor (mood: 36.5%). The results indicate that a faster CFT response is associated with reduced cortisol increase and enhanced mood after acute stress. Our data support an inverse relationship between vagal function and the HPA axis.

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About 7–day (circaseptan) and circadian changes in cold pressor test (CPT)

Cited by 9 publications

References 30 publications

The Mid-week Effect and Why Thursdays Are Blue: The Weekly Rhythm of Satisfaction in Hungary

The Mid-week Effect and Why Thursdays Are Blue: The Weekly Rhythm of Satisfaction in Hungary

Effects of Vibroacoustic Therapy on Elderly Nursing Home Residents with Depression

Association between Cold Face Test‐induced vagal inhibition and cortisol response to acute stress

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