Relationship between Autonomic Nervous System Activity during Sleep and Fasting Glucose in Japanese Workers

Kamata, Naoki; Morita, Shiho; Tagaya, Hirokuni; Kawashima, Masatoshi; Shichiri, Masayoshi; Miyaoka, Hiroaki

doi:10.2486/indhealth.ms1257

Cited by 3 publications

(3 citation statements)

References 38 publications

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“…This suggestion also seems to be in line with previous studies that showed that parasympathetic activity was negatively correlated with decreased glucose during overnight fasting [22]. It should be mentioned here that in our study, glucose concentration after 8 days of water-only fasting was also decreased, which, according to the above suggestions, may indicate parasympathetic stimulation reducing SBP.…”

Section: Changes In the Cardiovascular System After Fasting And Exercisesupporting

confidence: 93%

Effect of 8 days of water-only fasting and vigorous exercise on anthropometric parameters, lipid profile and HOMA-IR in middle-aged men

Pilis,

Stec

et al. 2023

Biomedical Human Kinetics

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Study aim: The aim of the present study was to determine the effect of 8 days of water-only fasting and physical exercise on somatic variables, lipid profile, insulin resistance and cardiovascular function in middle-aged men. Material and methods: Body weight, body composition, lipid profile, serum concentrations of insulin, glucose, β-hydroxybutyrate (β-HB), heart rate (HR), blood pressure and the homeostasis model assessment of insulin resistance (HOMA-IR) were determined in 16 apparently healthy men at rest and after aerobic exercise. This test procedure was also repeated after 8 days of water-only fasting. Results: Fasting intervention resulted in a reduction in body weight and fat mass (p < 0.001). The simultaneous effect of fasting and exercise resulted in significant changes in lipid profile, carbohydrate metabolism and cardiovascular function. Post hoc analyses showed that the reductions in insulin and glucose concentrations as well as the HOMA-IR index were caused by the fasting, and changes in the lipid profile and cardiovascular function were caused by the exercise test. Conclusion: The combined use of fasting and physical effort resulted in an optimal effect on health indicators of the surveyed men.

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Section: Changes In the Cardiovascular System After Fasting And Exercisesupporting

confidence: 93%

Effect of 8 days of water-only fasting and vigorous exercise on anthropometric parameters, lipid profile and HOMA-IR in middle-aged men

Pilis,

Stec

et al. 2023

Biomedical Human Kinetics

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“…Loaded physical exercise was evaluated based on levels of serum enzyme proteins derived from muscles (creatine phosphokinase [CPK] and lactate dehydrogenase [LDH]). Using a wearable watch-type wrist bundled sensor with a finger sensor [23], the quality and quantity of sleep during an entire night were evaluated before and during the training.…”

Section: Introductionmentioning

confidence: 99%

Decreased Plasma Brain-Derived Neurotrophic Factor and Vascular Endothelial Growth Factor Concentrations during Military Training

et al. 2014

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Decreased concentrations of plasma brain-derived neurotrophic factor (BDNF) and serum BDNF have been proposed to be a state marker of depression and a biological indicator of loaded psychosocial stress. Stress evaluations of participants in military mission are critically important and appropriate objective biological parameters that evaluate stress are needed. In military circumstances, there are several problems to adopt plasma BDNF concentration as a stress biomarker. First, in addition to psychosocial stress, military missions inevitably involve physical exercise that increases plasma BDNF concentrations. Second, most participants in the mission do not have adequate quality or quantity of sleep, and sleep deprivation has also been reported to increase plasma BDNF concentration. We evaluated plasma BDNF concentrations in 52 participants on a 9-week military mission. The present study revealed that plasma BDNF concentration significantly decreased despite elevated serum enzymes that escaped from muscle and decreased quantity and quality of sleep, as detected by a wearable watch-type sensor. In addition, we observed a significant decrease in plasma vascular endothelial growth factor (VEGF) during the mission. VEGF is also neurotrophic and its expression in the brain has been reported to be up-regulated by antidepressive treatments and down-regulated by stress. This is the first report of decreased plasma VEGF concentrations by stress. We conclude that decreased plasma concentrations of neurotrophins can be candidates for mental stress indicators in actual stressful environments that include physical exercise and limited sleep.

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“…The wearable physiological sensor was 55 × 57 × 14 mm in size, weighed 40 g, and operated on a rechargeable battery. Like in actigram analysis, the activity levels during sleep were analyzed using a three‐axis accelerometer, where values greater than 0.1 G were analyzed with Cole's algorithm (Cole, Kripke, Gruen, Mullaney, & Gillin, ; Inano, Mizumori, Kobayashi, Sumiya, & Yatani, ; Kamata et al., ).…”

Section: Participants and Methodsmentioning

confidence: 99%

Effect of chlorogenic acids on fatigue and sleep in healthy males: A randomized, double‐blind, placebo‐controlled, crossover study

Ochiai

Tomonobu

Ikushima

2018

Food Science & Nutrition

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Chlorogenic acids (CGAs) are found in abundance in coffee beans and have numerous health benefits. This study investigated the effect of CGAs extracted from coffee beans on fatigue and sleep in healthy participants. This crossover study involved 16 men (aged 30–54 years) who were daytime workers with weekends off work. The participants were randomized into two groups: One group was given a placebo beverage, and the other was given an active beverage containing 300 mg of CGAs. The test beverages were consumed for 13 days starting on a Sunday. The evaluation criteria were feelings of fatigue and sleep quality, sleep‐related indices recorded by an activity meter, and biomarkers. Feelings of fatigue and sleep‐related indices during the first (first half of week 1) and second (second half of week 2) halves of the consumption periods were compared. Within the first half of week 1, no differences in feelings of fatigue were observed between the groups. However, during the second half of week 2, fatigue upon awakening and sleep quality in the active group were significantly improved compared with those in the placebo group. Sleep efficiency and total nocturnal awakening time were significantly deteriorated in the second half of week 2 compared with the first half of week 1 in the placebo group. Furthermore, significant differences in these indices were observed between the two groups in the second half of week 2. These results suggest that the daily consumption of CGA‐containing beverages may improve fatigue upon awakening and sleep quality.

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Relationship between Autonomic Nervous System Activity during Sleep and Fasting Glucose in Japanese Workers

Cited by 3 publications

References 38 publications

Effect of 8 days of water-only fasting and vigorous exercise on anthropometric parameters, lipid profile and HOMA-IR in middle-aged men

Effect of 8 days of water-only fasting and vigorous exercise on anthropometric parameters, lipid profile and HOMA-IR in middle-aged men

Decreased Plasma Brain-Derived Neurotrophic Factor and Vascular Endothelial Growth Factor Concentrations during Military Training

Effect of chlorogenic acids on fatigue and sleep in healthy males: A randomized, double‐blind, placebo‐controlled, crossover study

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