scholarly journals Cardiac autonomic activity has a circadian rhythm in summer but not in winter in non-lactating pregnant dairy cows

2016 ◽  
Vol 155 ◽  
pp. 56-65 ◽  
Author(s):  
Levente Kovács ◽  
Fruzsina Luca Kézér ◽  
Ferenc Ruff ◽  
Ottó Szenci
Keyword(s):  
Circadian Rhythm ◽  
Dairy Cows ◽  
Autonomic Activity ◽  
Cardiac Autonomic Activity

Impaired circadian rhythm of cardiac autonomic activity as possible link between insulin resistance and nocturnal nondipping

2008 ◽  
Vol 13 (1) ◽  
pp. 63
Author(s):  
Antonio Perciaccante ◽  
Rosita Valente ◽  
Angelo Di Stefano ◽  
Alessandra Fiorentini ◽  
Luigi Tubani
Keyword(s):  
Insulin Resistance ◽  
Circadian Rhythm ◽  
Autonomic Activity ◽  
Cardiac Autonomic Activity

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

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.

Sleep patterns and nocturnal cardiac autonomic activity in female athletes are affected by the timing of exercise and match location

2018 ◽  
Vol 36 (3) ◽  
pp. 360-373 ◽  
Author(s):  
Júlio A. Costa ◽  
João Brito ◽  
Fábio Y. Nakamura ◽  
Pedro Figueiredo ◽  
Eduardo Oliveira ◽  
...  
Keyword(s):  
Female Athletes ◽  
Autonomic Activity ◽  
Sleep Patterns ◽  
Cardiac Autonomic Activity ◽  
Match Location

scholarly journals Cardiac autonomic activity in young adults with short sleep

2011 ◽  
Vol 6 (1) ◽  
pp. 20-23
Author(s):  
Pushpa Krishna ◽  
Vishal V. Navekar ◽  
S. Shwetha
Keyword(s):  
Young Adults ◽  
Autonomic Activity ◽  
Short Sleep ◽  
Cardiac Autonomic Activity

scholarly journals Cardiac autonomic activity during sleep deprivation with and without caffeine administration

2019 ◽  
Vol 210 ◽  
pp. 112643 ◽  
Author(s):  
Elena Crooks ◽  
Devon A. Hansen ◽  
Brieann C. Satterfield ◽  
Matthew E. Layton ◽  
Hans P.A. Van Dongen
Keyword(s):  
Sleep Deprivation ◽  
Autonomic Activity ◽  
Cardiac Autonomic Activity
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