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heart rate variability and sleep

Massimiliano de Zambotti, John Trinder, Ian M Colrain, Fiona C Baker
Insomnia is considered a hyperarousal disorder, in which several psychophysiological domains including the autonomic nervous system (ANS) are over-activated, potentially contributing to increased risk for cardiovascular (CV) disease. Here, we aimed to determine whether insomnia that develops in the context of the transition to menopause (menopausal transition insomnia, MTI) is similarly characterized by autonomic arousal. We also took into account modulation of the ANS by the hormonal changes of the menstrual cycle, a factor that has not previously been considered in studies on insomnia...
October 14, 2016: Psychoneuroendocrinology
David Herzig, Moreno Testorelli, Daniela Schäfer Olstad, Daniel Erlacher, Peter Achermann, Prisca Eser, Matthias Wilhelm
BACKGROUND/AIM: There is increasing popularity for athletes to use heart rate variability (HRV) to tailor training. A time-efficient method is HRV assessment during deep sleep. The aim was to validate the selection of deep sleep segments identified by RR-intervals with simultaneous electroencephalography (EEG) recordings and to compare HRV parameters of these segments with those of standard morning supine measurements. METHODS: In 11 world class alpine- skiers, RR-intervals were monitored during ten nights and simultaneous EEGs were recorded in 2-4 nights...
September 26, 2016: International Journal of Sports Physiology and Performance
Joseph R Isler, Tracy Thai, Michael M Myers, William P Fifer
A novel quantitative method for coding epochs of active and quiet sleep in infants using respiration is reported. The approach uses the variance of the instantaneous breathing rate within brief epochs of sleep. Variances are normalized within subject by dividing by the 75th percentile variance across epochs. Then, a normalized variance active sleep threshold of 0.29 was determined to produce the highest concordance with a method based on visual inspection of respiratory variability (100% and 90% for quiet and active sleep, respectively)...
October 20, 2016: Developmental Psychobiology
Noortje H Rijken, Remko Soer, Ewold de Maar, Hilco Prins, Wouter B Teeuw, Jan Peuscher, Frits G J Oosterveld
The aim of this pilot study was to investigate the effects of an intervention consisting of mental coaching combined with either electro encephalogram (EEG) alpha power feedback or heart rate variability (HRV) feedback on HRV, EEG outcomes and self-reported factors related to stress, performance, recovery and sleep quality in elite athletes. A prospective pilot study was performed with two distinct cohorts. Soccer players were provided with four sessions of mental coaching combined with daily HRV biofeedback (Group A); track and field athletes were provided with four sessions of mental coaching in combination with daily neurofeedback (Group B)...
October 19, 2016: Applied Psychophysiology and Biofeedback
Hanna Gustafsson, Colleen Doyle, Michelle Gilchrist, Elizabeth Werner, Catherine Monk
The consequences of childhood maltreatment are profound and long lasting. Not only does the victim of abuse suffer as a child, but there is mounting evidence that a history of maltreatment places the next generation at risk for significant psychopathology. Research identifies postnatal factors as affecting this intergenerational transmission of trauma. However, emerging evidence suggests that part of this risk may be transmitted before birth, passed on via abuse-related alterations in the in utero environment that are as yet largely unidentified...
October 20, 2016: Development and Psychopathology
Jeong-Eun Yi, Wook Bum Pyun, Yoonpyo Lee, Junbeom Park, Gee Yeon Kim, Sang-Hyun Ihm, Ju Han Kim, Soon Kil Kim, Gil Ja Shin
OBJECTIVE: Morning blood pressure (BP) surge has been regarded as a predictor of adverse cardiovascular events. However, its determinants remain controversial and no previous studies have evaluated whether or not there is a difference in the determinants of morning BP surge between normotensive and hypertensive subjects. DESIGN AND METHOD: We included 476 normotensive subjects (mean age 52.8 ± 15.4 years, 49.2% males) and 1028 untreated hypertensive patients (age 51...
September 2016: Journal of Hypertension
Lianne M Tomfohr-Madsen, Tavis S Campbell, Gerald F Giesbrecht, Nicole L Letourneau, Linda E Carlson, Joshua W Madsen, Sona Dimidjian
BACKGROUND: Clinically significant psychological distress in pregnancy is common, with epidemiological research suggesting that between 15 and 25 % of pregnant women experience elevated symptoms of stress, anxiety, and depression. Untreated psychological distress in pregnancy is associated with poor obstetrical outcomes, changes in maternal physiology, elevated incidence of child physical and psychological disorders, and is predictive of maternal postpartum mood disorders. Despite the wide-ranging impact of antenatal psychological distress on mothers and their children, there is a gap in our knowledge about the most effective treatments that are available for psychological distress experienced in pregnancy...
October 13, 2016: Trials
Stephen Crowcroft, Erin McCleave, Katie Slattery, Aaron J Coutts
PURPOSE: To assess measurement sensitivity and diagnostic characteristics of athlete monitoring tools to identify performance change. METHODS: Fourteen nationally competitive swimmers (11 males, 3 females, age: 21.2 ± 3.2 y) recorded daily monitoring over 15 months. The "Self-report" group (n=7) reported general health, energy levels, motivation, stress, recovery, soreness and wellness. The "Combined" group (n=7) recorded sleep quality, perceived fatigue, total quality recovery (TQR) and heart rate variability measures...
October 13, 2016: International Journal of Sports Physiology and Performance
Mathias Baumert, Yvonne Pamula, James Martin, Declan Kennedy, Anand Ganesan, Muammar Kabir, Mark Kohler, Sarah A Immanuel
The efficacy of adenotonsillectomy for relieving obstructive sleep apnoea symptoms in children has been firmly established, but its precise effects on cardiorespiratory control are poorly understood. In 375 children enrolled in the Childhood Adenotonsillectomy Trial, randomised to undergo either adenotonsillectomy (n=194) or a strategy of watching waiting (n=181), respiratory rate, respiratory sinus arrhythmia and heart rate were analysed during quiet, non-apnoeic and non-hypopnoeic breathing throughout sleep at baseline and at 7 months using overnight polysomnography...
April 2016: ERJ Open Research
Wei-Lun Lin, Li-Wei Lo, Hau-Ruey Chen, Chun-Ting Lai, Shinya Yamada, Shin-Huei Liu, Yu-Hui Chou, Shih-Ann Chen, Yun-Ching Fu, Terry B J Kuo
BACKGROUND: Autonomic imbalance with increased sympathetic and decreased parasympathetic activities is observed in patients after myocardial infarction (MI). We aimed to investigate sleep-related changed in autonomic regulation in left coronary artery (LCA) ligation rats. METHODS: Wireless transmission of polysomnographic recording was performed in sham and LCA ligation male rats during normal daytime sleep with and without atenolol treatment. Spectral analyses of the electroencephalogram (EEG) and electromyogram (EMG) were evaluated to define active waking (AW), quiet and paradoxical sleeps (QS, PS)...
September 30, 2016: International Journal of Cardiology
Marion Pace, Léa Dumortier, Anne Favre-Juvin, Michel Guinot, Véronique-Aurélie Bricout
No abstract text is available yet for this article.
September 29, 2016: Physiology & Behavior
Francesco Sartor, Silvia Capuzzoni, Gianluca Rospo, Antonio La Torre, Fulvio Vailati, Emanuele Vailati
In gymnastics high levels of executive attention, physical and coordinative capacities are required. However, training planning does not usually account for dynamic alterations in cognitive capacity. This study investigated whether cognitive capacity was altered by the approach of a competition. Ten elite male gymnasts (16 ± 2yrs, 57.3 ± 16.1kg, 1.64 ± 1.27m) were monitored for sleep, life-demands, rating of perceived effort (RPE) and pain, starting 5 days before the competition and up to 5 days after it...
September 21, 2016: Journal of Strength and Conditioning Research
Jeong-Eun Yi, Wook Bum Pyun, Yoonpyo Lee, Junbeom Park, Gee Yeon Kim, Sang-Hyun Ihm, Ju Han Kim, Soon Kil Kim, Gil Ja Shin
OBJECTIVE: Morning blood pressure (BP) surge has been regarded as a predictor of adverse cardiovascular events. However, its determinants remain controversial and no previous studies have evaluated whether or not there is a difference in the determinants of morning BP surge between normotensive and hypertensive subjects. DESIGN AND METHOD: We included 476 normotensive subjects (mean age 52.8 ± 15.4 years, 49.2% males) and 1028 untreated hypertensive patients (age 51...
September 2016: Journal of Hypertension
Alessandra Di Cagno, Carlo Minganti, Federico Quaranta, Eugenio M Pistone, Federica Fagnani, Giovanni Fiorilli, Arrigo Giombini
BACKGROUND: The aim of this intervention study was to determine the effects of a new experimental cervical pillow, on symptomatic adults affected by chronic mechanical neck pain. METHODS: Twelve recreational athletes of both sexes (mean age 40.5 years; range 35-55), affected by grade II chronic mechanical neck pain, were evaluated with a daily diary type of self- report questionnaire, which incorporated an 11-point Numerical Rating Pain Scale, to collect the primary outcome measures of pre and post-sleep neck pain and with the Neck Pain Disability Scale...
September 8, 2016: Journal of Sports Medicine and Physical Fitness
Michael G Hutchison, Lynda Mainwaring, Arrani Senthinathan, Nathan Churchill, Scott Thomas, Doug Richards
BACKGROUND: Sport-related concussions are associated with a range of physical, cognitive, and behavioral disturbances that are highly variable across individuals. Much remains unknown about the effects of sport concussion, and changes in markers of psychological and physiological stress over the recovery timeline. OBJECTIVE: To examine psychological (mood, stress, sleep quality, and symptoms) and physiological (heart rate variability and salivary cortisol) measures in concussed athletes over clinical recovery milestones...
September 6, 2016: Journal of Head Trauma Rehabilitation
Michelle B Rissling, Paul A Dennis, Lana L Watkins, Patrick S Calhoun, Michelle F Dennis, Jean C Beckham, Junichiro Hayano, Christi S Ulmer
Prior research has demonstrated that individuals exposed to trauma have shown impaired autonomic function. We sought to determine if heart rate variability (HRV), a marker of impaired autonomic function, differed across periods of wake, rest, and sleep as a function of the level of symptoms of posttraumatic stress disorder (PTSD). A sample of young adults (N = 209), 95 of whom met full criteria for current PTSD based on the Clinician Administered PTSD Scale (CAPS; Blake et al., 1995), were evaluated for ≈ 24 hr using actigraphy and electrocardiogram...
October 2016: Journal of Traumatic Stress
Mercedes Sanchez-Martínez, Esther López-García, Pilar Guallar-Castillón, Juan J Cruz, Edilberto Orozco, Esther García-Esquinas, Fernando Rodríguez-Artalejo, José R Banegas
OBJECTIVE: Social support has been associated with greater nocturnal decline (dipping) in blood pressure (BP) in younger and middle-aged individuals. However, it is uncertain if aggregated measures of social support are related to ambulatory SBP in older adults, where high SBP is frequent and clinically challenging. METHODS: We studied 1047 community-living individuals aged at least 60 years in Spain. Twenty-four-hour ambulatory BP was determined under standardized conditions...
October 2016: Journal of Hypertension
Cecilia Castro-Diehl, Ana V Diez Roux, Susan Redline, Teresa Seeman, Paula McKinley, Richard Sloan, Steven Shea
STUDY OBJECTIVES: Short sleep duration and poor sleep quality are associated with adverse cardiovascular outcomes. Potential pathophysiological mechanisms include sleep-associated alterations in the autonomic nervous system. The objective of this study was to examine the associations of shorter sleep duration and poorer sleep quality with markers of autonomic tone: heart rate (HR), high-frequency HR variability (HF-HRV) and salivary amylase. METHODS: Cross-sectional analysis of data from actigraphy-based measures of sleep duration and efficiency and responses to a challenge protocol obtained from 527 adult participants in the Multi-Ethnic Study of Atherosclerosis...
August 19, 2016: Sleep
Christopher B Miller, Delwyn J Bartlett, Anna E Mullins, Kirsty L Dodds, Christopher J Gordon, Simon D Kyle, Jong Won Kim, Angela L D'Rozario, Rico S C Lee, Maria Comas, Nathaniel S Marshall, Brendon J Yee, Colin A Espie, Ronald R Grunstein
STUDY OBJECTIVES: To empirically derive and evaluate potential clusters of Insomnia Disorder through cluster analysis from polysomnography (PSG). We hypothesized that clusters would differ on neurocognitive performance, sleep-onset measures of quantitative (q)-EEG and heart rate variability (HRV). METHODS: Research volunteers with Insomnia Disorder (DSM-V) completed a neurocognitive assessment and overnight PSG measures of total sleep time (TST), wake time after sleep onset (WASO), and sleep onset latency (SOL) were used to determine clusters...
August 19, 2016: Sleep
Masafumi Kurajoh, Manabu Kadoya, Akiko Morimoto, Mariko Naka, Akio Miyoshi, Akinori Kanzaki, Miki Kakutani-Hatayama, Kae Hamamoto, Takuhito Shoji, Yuji Moriwaki, Tetsuya Yamamoto, Masaaki Inaba, Mitsuyoshi Namba, Hidenori Koyama
Fatigue induced by complex dysfunctions of the central nervous system is frequently complained by patients with cardiovascular risk factors. Although leptin is considered to regulate the central nervous system, there are no reports regarding its association with fatigue in those patients. This cross-sectional study included 347 patients with cardiovascular risk factors. Fatigue score and plasma leptin concentration were measured. In addition, abdominal fat accumulation, systemic inflammation, sleep condition, and functions of hypothalamus-pituitary axis and autonomic system were estimated...
August 16, 2016: Psychoneuroendocrinology
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