Effects of partial sleep deprivation after prolonged exercise on metabolic responses and exercise performance on the following day

Performing high-intensity exercise (HIE) in the morning under sleep deprivation may harm the health benefits related to sufficient sleep and HIE. Therefore, the aim of this study was to explore the effects of acute-partial sleep deprivation on HIE performance and cardiac autonomic activity by monitoring heart rate variability (HRV) indices. Twenty-nine healthy male adolescents in college were recruited to perform a one-time HIE session on the treadmill (Bruce protocol) after ≥7 h of normal control sleep (control) and after ≤4 h of acute-partial sleep deprivation (SD). At the beginning of control and SD periods and after exercising under the two sleep conditions, heart rate (HR), standard deviation of normal to normal (SDNN), square root of the mean squared differences of successive NN intervals (RMSSD), normalized low frequency power (LFn), normalized high frequency power (HFn), number of pairs adjacent NN intervals differing by ≥50 ms in the entire recording count divided by the total number of all NN intervals (pNN50), and short axis and long axis value in Poincaré plot (SD1 and SD2) were measured at rest in an upright sitting position. The participants slept 7.63 ± 0.52 and 3.78 ± 0.69 h during control and SD periods, respectively (p < 0.001). Compared with the control participants, those suffering sleep deprivation experienced a significant decrease in exercise duration, RMSSD, HFn, SD1, and pNN50 as well as a significant increase in maximum heart rate during exercise (p < 0.05). SDNN, RMSSD, HFn, SD1, and pNN50 decreased significantly after exercise (p < 0.05 and 0.01 and 0.001, respectively). In summary, acute-partial sleep deprivation affected aerobic exercise performance the next morning and led to decreased cardiac vagus activity and cardiac autonomic dysfunction.

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Single Ingestion of Trehalose Enhances Prolonged Exercise Performance by Effective Use of Glucose and Lipid in Healthy Men

Nutrients ◽

10.3390/nu13051439 ◽

2021 ◽

Vol 13 (5) ◽

pp. 1439

Author(s):

Naomi Hamada ◽

Tsuyoshi Wadazumi ◽

Yoko Hirata ◽

Mayumi Kuriyama ◽

Kanji Watanabe ◽

...

Keyword(s):

Exercise Performance ◽

Prolonged Exercise ◽

Insulin Response ◽

Area Under The Curve ◽

Constant Load ◽

Bicycle Ergometer ◽

The Body ◽

Water Control ◽

Double Blind ◽

Healthy Men

Trehalose increases blood glucose levels slowly and induces a slight insulin response. The present study aimed to study the effect of trehalose on prolonged exercise performance. The participants were 12 healthy men (age: 21.3 ± 0.9 y). After an overnight fast (12 h), they first exercised with a constant load (intensity: 40% V˙O2peak) for 60 min using a bicycle ergometer. They continued to exercise with a constant load (40% V˙O2peak) for 30 min between four sets of the 30-s Wingate test. After the 1st set, each participant ingested 500 mL water (control), 8% glucose, or 8% trehalose in three trials. These three trials were at least one week apart and were conducted in a double-blind and randomized crossover manner. Blood was collected for seven biochemical parameters at 12 time points during the experiment. The area under the curve of adrenaline after ingestion of trehalose was significantly lower than that for water and tended to be lower than that for glucose in the later stage of the exercise. Lower secretion of adrenaline after a single dose of 8% trehalose during prolonged exercise reflected the preservation of carbohydrates in the body in the later stage of the exercise. In conclusion, a single ingestion of trehalose helped to maintain prolonged exercise performance.

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Listening to motivational music during warming-up attenuates the negative effects of partial sleep deprivation on cognitive and short-term maximal performance: Effect of time of day

Chronobiology International ◽

10.1080/07420528.2021.1904971 ◽

2021 ◽

pp. 1-12

Author(s):

Syrine Khemila ◽

Salma Abedelmalek ◽

Mohamed Romdhani ◽

Amine Souissi ◽

Hamdi Chtourou ◽

...

Keyword(s):

Sleep Deprivation ◽

Time Of Day ◽

Negative Effects ◽

Short Term ◽

Performance Effect ◽

Maximal Performance ◽

Partial Sleep Deprivation

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Partial sleep deprivation to prevent 48-hour mood cycles

Acta Psychiatrica Scandinavica ◽

10.1111/j.1600-0447.1990.tb05470.x ◽

1990 ◽

Vol 81 (4) ◽

pp. 398-399 ◽

Cited By ~ 5

Author(s):

C. M. Churchill ◽

S. C. Dilsaver

Keyword(s):

Sleep Deprivation ◽

Partial Sleep Deprivation

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The Link Between Sleep, Stress and BDNF

European Psychiatry ◽

10.1016/j.eurpsy.2017.02.132 ◽

2017 ◽

Vol 41 (S1) ◽

pp. S282-S282 ◽

Cited By ~ 1

Author(s):

A. Eckert ◽

S. Karen ◽

J. Beck ◽

S. Brand ◽

U. Hemmeter ◽

...

Keyword(s):

Sleep Deprivation ◽

Serum Levels ◽

Bdnf Expression ◽

Depressed Patients ◽

Level Increase ◽

Stress Experience ◽

Partial Sleep Deprivation ◽

Competing Interest ◽

Fast Increase ◽

Serum Bdnf

The protein brain derived neurotrophic factor (BDNF) is a major contributor to neuronal plasticity. There is numerous evidence that BDNF expression is decreased by experiencing psychological stress and that accordingly a lack of neurotrophic support causes depression. The use of serum BDNF concentration as a potential indicator of brain alteration is justified through extensive evidence. Recently, we reported, for the first time, a relationship between BDNF and insomnia, since we could show that reduced levels of serum BDNF are correlated with sleep impairment in control subjects, while partial sleep deprivation was able to induce a fast increase in serum BDNF levels in depressed patients. Using a bi-directional stress model as an explanation approach, we propose the hypothesis that chronic stress might induce a deregulation of the HPA system leading in the long term to sleep disturbance and decreased BDNF levels, whereas acute sleep deprivation, can be used as therapeutical intervention in some insomniac or depressed patients as compensatory process to normalize BDNF levels. Indeed, partial sleep deprivation (PSD) induced a very fast increase in BDNF serum levels within hours after PSD which is similar to effects seen after ketamine infusion, another fast-acting antidepressant intervention, while traditional antidepressants are characterized by a major delay until treatment response as well as delayed BDNF level increase. Moreover, we revealed that stress experience and subjective sleep perception interact with each other and affect serum BDNF levels. We identified sleep as a mediator of the association between stress experience and serum BDNF levels.Disclosure of interestThe authors have not supplied their declaration of competing interest.

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