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Heart rate variability, training

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https://www.readbyqxmd.com/read/28538304/a-performance-analysis-of-a-stand-up-paddle-board-marathon-race
#1
Ben L Schram, Wayne A Hing, Mike Climstein, James W Furness
Schram, BL, Hing, WA, Climstein, M, and Furness, JW. A performance analysis of a stand-up paddle board marathon race. J Strength Cond Res 31(6): 1552-1556, 2017-Stand-up paddle boarding (SUP) is a rapidly growing sport and recreational activity in which little scientific research exists. A review of the literature failed to identify a single article pertaining to the physiological demands of SUP competition. The purpose of this study was to conduct a performance analysis of a national-level SUP marathon race...
June 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28531328/factors-associated-with-compliance-to-aha-acc-performance-measures-in-a-myocardial-infarction-system-of-care-in-brazil
#2
Maria Letícia L Lana, Andrea Z Beaton, Luisa C C Brant, Isadora C R S Bozzi, Osias de Magalhães, Luiz Ricardo de A Castro, Francisco César T da Silva Júnior, José Luiz P da Silva, Antonio Luiz P Ribeiro, Bruno R Nascimento
Objective: To evaluate compliance with American Heart Association/American College of Cardiology (AHA/ACC) performance measures for adults with acute myocardial infarction (AMI) and to investigate the factors associated with compliance, in an AMI System of Care in Brazil. Design: Observational longitudinal study. Setting: A high-complexity University Hospital, part of the AMI System of Care implemented in Belo Horizonte, Brazil, in 2010. Participants: Of note, 1129 patients with ST-elevation myocardial infarction (STEMI) and non-ST-elevation myocardial infarction (NSTEMI) admitted to a single center over 36 months (between 2011 and 2014)...
May 20, 2017: International Journal for Quality in Health Care
https://www.readbyqxmd.com/read/28528435/benefits-of-a-regular-vs-irregular-rhythm-based-training-programme-on-physical-fitness-and-motor-skills-in-obese-girls
#3
Ghazi Racil, Wassim Elmontassar, Imen Rommene, Claire Tourny, Anis Chaouachi, Jeremy B Coquart
PURPOSE: The aim of the current study was to examine the impact of a physical exercise programme including rhythmic elements (regular and irregular tempos) on physiological variables, motor skills (MS), and jump performances in obese girls. METHODS: Thirty-six obese girls (age: 10.4 ± 0.9 years, body mass: 58.7 ± 4.0 kg, height: 1.37 ± 0.04 m, body mass index: 31.2 ± 2.1) participated in three weekly physical exercise sessions for 6 weeks, with each session consisting of basic fundamental locomotor movements...
May 20, 2017: Journal of Endocrinological Investigation
https://www.readbyqxmd.com/read/28505992/the-influence-of-a-constraint-and-bimanual-training-program-using-a-variety-of-modalities-on-endurance-and-on-the-cardiac-autonomic-regulation-system-of-children-with-unilateral-cerebral-palsy-a-self-control-clinical-trial
#4
Marilyn Cohen-Holzer, Gilad Sorek, Maayan Schweizer, Michal Katz-Leurer
BACKGROUND: An intensive hybrid program, combining constraint with bimanual training, improves upper extremity function as well as walking endurance of children with unilateral cerebral palsy (UCP). Endurance improvement may be associated with the cardiac autonomic regulation system (CARS) adaptation, known to be impaired among these children. OBJECTIVE: To examine the influence of an intensive hybrid program on CARS, walking endurance and the correlation with upper extremity function of children with UCP...
May 11, 2017: NeuroRehabilitation
https://www.readbyqxmd.com/read/28501968/effect-of-parachute-jump-in-the-psychophysiological-response-of-soldiers-in-urban-combat
#5
Joaquín Sánchez-Molina, José J Robles-Pérez, Vicente J Clemente-Suárez
The study of organic and psychological response during combat situations has been poorly reported despite its importance for soldiers training and specific instruction, so it was proposed as aim of the present investigation to analyze the effect of a tactical parachute simulated jump in psycho-physiological response of paratroopers' warfighters during an urban combat simulation. 19 male paratroopers (31.9 ± 6.2 year old; 173.6 ± 5.3 cm; 73.8 ± 8.3 Kg) of the Spanish Army were divided in two groups: parachute jump group (n:11) that conducted a simulated parachute jump and a urban combat maneuver and a non-parachute jump group (n:8) that only conducted an urban combat maneuver...
June 2017: Journal of Medical Systems
https://www.readbyqxmd.com/read/28480859/the-effects-of-non-functional-overreaching-and-overtraining-on-autonomic-nervous-system-function-in-highly-trained-athletes
#6
T Kajaia, L Maskhulia, K Chelidze, V Akhalkatsi, Z Kakhabrishvili
Aim of the study was to compare the ANS functioning, as measured by heart rate variability (HRV), in athletes with non-functional overreaching (NFO) and overtraining syndrome (OTS) and in athletes without NFO/OTS. In 43 athletes with NFO/OTS, 40 athletes without NFO/OTS, as well as in 35 sedentary subjects the ANS function was evaluated with the Autonomic Balance Test, based on the HRV analysis of resting heart rate recordings. Results of the study show lower HRV and lower vagal influence along with increased sympathetic cardiovascular control in athletes with non-functional overreaching and particularly in athletes with overtraining, than in highly trained athletes without NFO/OTS...
March 2017: Georgian Medical News
https://www.readbyqxmd.com/read/28479953/effects-of-simulated-altitude-on-maximal-oxygen-uptake-and-inspiratory-fitness
#7
Nicole C Biggs, Benjamin S England, Nicole J Turcotte, Melissa R Cook, Alyne L Williams
Aerobic exercise at altitude has shown an increase in maximal oxygen uptake. Similar effects have been replicated by way of simulated altitude training, which have influenced various advances in the field of exercise science. Elevation Training Masks© (ETM) claim to stimulate cardiorespiratory fitness improvements similar to training at altitude, however, there is little research to support this claim. The purpose of this study was to research the effect that a hypoxia-inducing mask would have on cardiorespiratory fitness and pulmonary function through the use of a high intensity interval training (HIIT) running program...
2017: International Journal of Exercise Science
https://www.readbyqxmd.com/read/28479948/assessing-energy-level-as-a-marker-of-aerobic-exercise-readiness-a-pilot-investigation
#8
Kelley Strohacker, William R Boyer, Kayla N Smitherman, Emily Cornelius, Daniel Fazzino
Energy ratings have been used as a marker of exercise readiness (i.e. pre-exercise physical/mental state indicating ability to perform) within flexible nonlinear periodization (FNLP)-based resistance training interventions. However, empirical data is lacking regarding the utility of this approach for aerobic exercise. The purpose of this study was to examine the ability of pre-exercise energy level to predict affective and behavioral responses to prescribed aerobic exercise. Participants consisted of 19 women and 8 men (N=27, age=20±4 years, estimated maximal oxygen uptake=37±6)...
2017: International Journal of Exercise Science
https://www.readbyqxmd.com/read/28478782/the-effect-of-heart-rate-variability-biofeedback-training-on-stress-and-anxiety-a-meta-analysis
#9
V C Goessl, J E Curtiss, S G Hofmann
BACKGROUND: Some evidence suggests that heart rate variability (HRV) biofeedback might be an effective way to treat anxiety and stress symptoms. To examine the effect of HRV biofeedback on symptoms of anxiety and stress, we conducted a meta-analysis of studies extracted from PubMed, PsycINFO and the Cochrane Library. METHODS: The search identified 24 studies totaling 484 participants who received HRV biofeedback training for stress and anxiety. We conducted a random-effects meta-analysis...
May 8, 2017: Psychological Medicine
https://www.readbyqxmd.com/read/28474988/premedication-with-fentanyl-midazolam-improves-sevoflurane-anesthesia-for-surgical-intervention-in-laboratory-mice
#10
Miriam Lipiski, Margarete Arras, Paulin Jirkof, Nikola Cesarovic
Balanced anesthesia allows for a reduced dosage of each component, while inducing general anesthesia of sufficient depth with potentially fewer side effects. Here, we compare two anesthetic protocols combining sevoflurane anesthesia with pre-medication (ketamine [K] or fentanyl-midazolam [FM]) to a sevoflurane monoanesthesia (S) concerning their ability to provide reliable anesthesia suitable for moderate surgery in laboratory mice. Twenty-one female C57BL/6J mice assigned randomly to one of three protocols underwent a 50-min anesthesia and a sham embryo transfer...
January 1, 2017: Experimental Biology and Medicine
https://www.readbyqxmd.com/read/28471041/an-investigation-into-the-relationship-between-heart-rate-variability-and-the-ventilatory-threshold-in-healthy-moderately-trained-males
#11
Andrew Grannell, Giuseppe De Vito
BACKGROUND: During incremental exercise, heart rate variability (HRV) has been shown to display distinct stabilization and inflection points, which have been used to indirectly detect the ventilatory threshold (VT). METHODS: Ten moderately trained males (26·5 ± 5·9 years: VO2peak 48·7 ± 4·1 ml min(-1 ) kg(-1) ) performed an incremental test on a cycle ergometer until volitional exhaustion with both R-R intervals and respiratory indices recorded. HRV was quantified using both nonlinear (Poincare plot; short-term variability SD1) and spectral analysis of the R-R intervals (high-frequency component; HFp)...
May 4, 2017: Clinical Physiology and Functional Imaging
https://www.readbyqxmd.com/read/28470361/use-of-biotechnology-devices-to-analyse-fatigue-process-in-swimming-training
#12
V J Clemente-Suárez, J J Arroyo-Toledo
The aim of the present research was to analyze the acute psycho-physiological response during a high intensity interval training (HIIT) session of trained swimmers. We analyzed blood lactate concentration, heart rate, heart rate variability (HRV), arms isometric strength, rating of perceived exertion (RPE) and cortical arousal before and after a HIIT session in 14 trained swimmers (16.2 ± 2.6 years 169.1 ± 10.2 cm 61.3 ± 9.9 kg). HIIT session consisted in: 4 × 10 m tethered swimming resting 90 s between sets, 3 min rest, 16 × 25 m maximum speed swimming resting 30 s between sets...
June 2017: Journal of Medical Systems
https://www.readbyqxmd.com/read/28469745/adequacy-of-the-ultra-short-term-hrv-to-assess-adaptive-processes-in-youth-female-basketball-players
#13
Fabio Y Nakamura, Lucas A Pereira, Cesar C Cal Abad, Igor F Cruz, Andrew A Flatt, Michael R Esco, Irineu Loturco
Heart rate variability has been widely used to monitor athletes' cardiac autonomic control changes induced by training and competition, and recently shorter recording times have been sought to improve its practicality. The aim of this study was to test the agreement between the (ultra-short-term) natural log of the root-mean-square difference of successive normal RR intervals (lnRMSSD - measured in only 1 min post-1 min stabilization) and the criterion lnRMSSD (measured in the last 5 min out of 10 min of recording) in young female basketball players...
February 2017: Journal of Human Kinetics
https://www.readbyqxmd.com/read/28441231/patient-specific-classification-of-icu-sedation-levels-from-heart-rate-variability
#14
Sunil B Nagaraj, Siddharth Biswal, Emily J Boyle, David W Zhou, Lauren M McClain, Ednan K Bajwa, Sadeq A Quraishi, Akeju Oluwaseun, Riccardo Barbieri, Patrick L Purdon, M Brandon Westover
OBJECTIVE: To develop a personalizable algorithm to discriminate between sedation levels in ICU patients based on heart rate variability. DESIGN: Multicenter, pilot study. SETTING: Several ICUs at Massachusetts General Hospital, Boston, MA. PATIENTS: We gathered 21,912 hours of routine electrocardiogram recordings from a heterogenous group of 70 adult ICU patients. All patients included in the study were mechanically ventilated and were receiving sedatives...
April 22, 2017: Critical Care Medicine
https://www.readbyqxmd.com/read/28436092/effects-of-creatine-supplementation-on-cardiac-autonomic-functions-in-bodybuilders
#15
Kadir Uğur Mert, Serdar Ilgüy, Muhammet Dural, Gurbet Özge Mert, Engin Özakin
Bodybuilder-type workouts may affect heart rate variability (HRV), which has considerable potential to assess the role of autonomic nervous system (ANS). A scientifically designed approach is necessary for bodybuilders to achieve better results while protecting their health. In this study, we aimed to investigate HRV parameters in bodybuilders compared to healthy control subjects and effects of creatine supplementation. Total 48 male participants (16 controls, 16 supplement(-), 16 supplement(+) were evaluated in our study...
April 24, 2017: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/28435239/pulmonary-rehabilitation-for-copd-improves-exercise-time-rather-than-exercise-tolerance-effects-and-mechanisms
#16
Keisuke Miki, Ryoji Maekura, Seigo Kitada, Mari Miki, Kenji Yoshimura, Hiroshi Yamamoto, Toshiko Kawabe, Hiroyuki Kagawa, Yohei Oshitani, Akitoshi Satomi, Kohei Nishida, Nobuhiko Sawa, Kimiko Inoue
BACKGROUND: COPD patients undergoing pulmonary rehabilitation (PR) show various responses. The purpose of this study was to investigate the possible mechanisms and predictors of the response to PR in COPD patients. METHODS: Thirty-six stable COPD patients underwent PR including a 4-week high-intensity exercise training program, and they were evaluated by cardiopulmonary exercise testing. All patients (mean age 69 years, severe and very severe COPD 94%) were classified into four groups by whether the exercise time (Tex) or the peak oxygen uptake [Formula: see text] increased after PR: two factors increased (both the Tex and the peak [Formula: see text] increased); two factors decreased; time only increased (the Tex increased, but the peak [Formula: see text] economized); and [Formula: see text] only increased (the Tex decreased, but the peak [Formula: see text] increased)...
2017: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/28399098/-eeg-spectral-characteristics-during-heart-rate-variability-biofeedback-in-healthy-people
#17
D B Demin, L V Poskotinova
AIM: To evaluate changes in electroencephalogram (EEG) spectral characteristics during a single session of heart rate variability biofeedback (HRV BF). MATERIAL AND METHODS: One hundred and fifty adolescents, aged 16-17 years, were studied. Adolescents of the BF-group (n=110) conducted HRV BF session to enhance vagal influences on the heart rhythm. Adolescents of the control group (n=40) remained in relaxed resting state. EEG was recorded with eyes closed before and after BF training...
2017: Zhurnal Nevrologii i Psikhiatrii Imeni S.S. Korsakova
https://www.readbyqxmd.com/read/28389218/walking-training-at-the-heart-rate-of-pain-threshold-improves-cardiovascular-function-and-autonomic-regulation-in-intermittent-claudication-a-randomized-controlled-trial
#18
Marcel Chehuen, Gabriel G Cucato, Celso Ricardo F Carvalho, Raphael M Ritti-Dias, Nelson Wolosker, Anthony S Leicht, Cláudia Lúcia M Forjaz
OBJECTIVES: This study investigated the effects of walking training (WT) on cardiovascular function and autonomic regulation in patents with intermittent claudication (IC). DESIGN: Randomized controlled trial. METHODS: Forty-two male patients with IC (≥50years) were randomly allocated into two groups: control (CG, n=20, 30min of stretching exercises) and WT (WTG, n=22, 15 bouts of 2min of walking interpolated by 2min of upright rest-walking intensity was set at the heart rate of pain threshold)...
March 21, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/28359608/changes-in-ventilatory-response-to-exercise-in-trained-athletes-respiratory-physiological-benefits-beyond-cardiovascular-performance
#19
Adriano di Paco, Bruno-Pierre Dubé, Pierantonio Laveneziana
INTRODUCTION: The beneficial impact of an 8-month competitive season on the ventilatory profile response to exercise in soccer players has never been evaluated. MATERIAL AND METHODS: Ventilatory profile (evaluated by determining individual tidal volume [VT] relative to minute ventilation [VE] inflection points during exercise) and metabolic responses to incremental exercise were evaluated in 2 professional soccer teams before and after an 8-month competitive season...
March 27, 2017: Archivos de Bronconeumología
https://www.readbyqxmd.com/read/28359165/testing-a-resilience-training-program-in-police-recruits
#20
Sandra L Ramey, Yelena Perkhounkova, Maria Hein, Nicole L Bohr, Amanda A Anderson
BACKGROUND: Stress from multiple sources is inherent in law enforcement. However, it is possible to modify responses to stress with resilience training that includes teaching techniques to modify emotional and physical responses to stress, interface with mental health professionals, and practice sessions to improve self-regulation of responses to stress including coherence, a measure of heart rate variability. A gap exists in the research, however, regarding evaluation of the duration of effects after the initial resilience training...
January 1, 2017: Biological Research for Nursing
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