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Heart rate variability, training

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https://www.readbyqxmd.com/read/29784718/opinion-and-special-articles-stress-when-performing-the-first-lumbar-puncture-may-compromise-patient-safety
#1
Mikael Johannes Vuokko Henriksen, Troels Wienecke, Jesper Kristiansen, Yoon Soo Park, Charlotte Ringsted, Lars Konge
OBJECTIVE: To quantify physician stress levels when performing lumbar puncture (LP) and explore operator stress effect on patient outcomes. METHODS: This was a cross-sectional, multicenter study. Novices, intermediates, and experts in performing LP were recruited from 4 departments of neurology and emergency medicine. Stress was measured before and during performance of the LP using cognitive appraisal (CA), State-Trait Anxiety Inventory-Short (STAI-S) questionnaire, and the heart rate variability measure low frequency/high frequency index (LF/HF ratio)...
May 22, 2018: Neurology
https://www.readbyqxmd.com/read/29782479/basic-training-a-pilot-study-of-balance-strengthening-exercises-in-heart-failure
#2
Rita McGuire, Julie Honaker, Bunny Pozehl, Melody Hertzog
PURPOSE: The aim of this pilot study was to evaluate the effect of a multicomponent balance and resistance training intervention on physical function, balance, and falls in older (≥65 years) community-dwelling heart failure (HF) patients. DESIGN: Randomized, two-group repeated-measures experimental design. METHODS: The intervention involved once weekly supervised group sessions with home sessions encouraged twice weekly. Focus groups held pre/post intervention...
May 19, 2018: Rehabilitation Nursing: the Official Journal of the Association of Rehabilitation Nurses
https://www.readbyqxmd.com/read/29782180/current-evidence-on-heart-rate-variability-biofeedback-as-a-complementary-anticraving-intervention
#3
Nour Alayan, Lucille Eller, Marsha E Bates, Dennis P Carmody
BACKGROUND: The limited success of conventional anticraving interventions encourages research into new treatment strategies. Heart rate variability biofeedback (HRVB), which is based on slowed breathing, was shown to improve symptom severity in various disorders. HRVB, and certain rates of controlled breathing (CB), may offer therapeutic potential as a complementary drug-free treatment option to help control substance craving. METHODS: This review evaluated current evidence on the effectiveness of HRVB and CB training as a complementary anticraving intervention, based on guidelines from the Preferred Reporting Items for Systematic Review and Meta-Analysis Protocols...
May 21, 2018: Journal of Alternative and Complementary Medicine: Research on Paradigm, Practice, and Policy
https://www.readbyqxmd.com/read/29781939/order-effects-of-resistance-and-stretching-exercises-on-heart-rate-variability-and-blood-pressure-in-healthy-adults
#4
Gleisson da Silva Araujo, David G Behm, Estêvão Rios Monteiro, Aline Gomes Ferreira de Melo Fiuza, Thiago Matassoli Gomes, Jefferson Macedo Vianna, Michel Silva Reis, Jefferson da Silva Novaes
da Silva Araujo, G, Behm, DG, Monteiro, ER, de Melo Fiuza, AGF, Gomes, TM, Vianna, JM, Reis, MS, and da Silva Novaes, J. Order effects of resistance and stretching exercises on heart rate variability and blood pressure in healthy adults. J Strength Cond Res XX(X): 000-000, 2018-The purpose of this study was to compare the acute effect of different combinations and order of resistance exercise (RE) and stretching exercise (SE) on heart rate variability, systolic blood pressure (SBP), and diastolic blood pressure (DBP)...
May 17, 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29775234/effects-of-whole-body-vibration-on-heart-rate-variability-acute-responses-and-training-adaptations
#5
REVIEW
Alexei Wong, Arturo Figueroa
Heart rate variability (HRV) is a noninvasive and practical measure of cardiac autonomic nervous system function, mainly the sympathetic and parasympathetic modulations of heart rate. A low HRV has been shown to be indicative of compromised cardiovascular health. Interventions that enhance HRV are therefore beneficial to cardiovascular health. Whole-body vibration (WBV) training has been proposed as an alternative time-efficient exercise intervention for the improvement of cardiovascular health. In this review, we discuss the effect of WBV both acute and after training on HRV...
May 18, 2018: Clinical Physiology and Functional Imaging
https://www.readbyqxmd.com/read/29773686/drivers-of-the-dive-response-in-pinnipeds-apnea-submergence-or-temperature
#6
Jeppe Kaczmarek, Colleen Reichmuth, Birgitte I McDonald, Jakob H Kristensen, Josefin Larson, Fredrik Johansson, Jenna L Sullivan, Peter T Madsen
Long and deep dives in marine mammals are enabled by high mass-specific oxygen stores and the dive response (DR), which reduces oxygen consumption in concert with increased peripheral vasoconstriction and a lowered heart rate during dives. Diving heart rates of pinnipeds are highly variable and modulated by many factors, such as breath holding (apnea), pressure, swimming activity, temperature, and even cognitive control. However, the individual effects of these factors on diving heart rate are poorly understood due to the difficulty of parsing their relative contributions in diving pinnipeds...
May 17, 2018: Journal of Experimental Biology
https://www.readbyqxmd.com/read/29765580/predictive-factors-associated-with-mortality-and-discharge-in-intensive-care-units-a-retrospective-cohort-study
#7
Mohammad Ghorbani, Haleh Ghaem, Abbas Rezaianzadeh, Zahra Shayan, Farid Zand, Reza Nikandish
Background and aim: Accurate prediction of prognosis of patients admitted to intensive care units (ICUs) is very important for the clinical management of the patients. The present study aims to identify independent factors affecting death and discharge in ICUs using competing risk modeling. Methods: This retrospective cohort study was conducted on enrolling 880 patients admitted to emergency ICU in Namazi hospital, Shiraz University of Medical Sciences, Shiraz, Iran during 2013-2015...
March 2018: Electronic Physician
https://www.readbyqxmd.com/read/29752160/can-diaphragmatic-breathing-modify-chest-wall-volumes-during-inspiratory-loaded-breathing-in-patients-with-heart-failure
#8
Susan Martins Lage, Raquel Rodrigues Britto, Daniella Cunha Brandão, Danielle Aparecida Gomes Pereira, Armèle Dornelas de Andrade, Verônica Franco Parreira
BACKGROUND: Some inspiratory muscle training protocols for patients with heart failure report the request of diaphragmatic breathing during inspiratory loaded breathing. However, it is unclear whether this condition modifies the chest wall volumes. OBJECTIVE: The primary purpose was to evaluate chest wall volumes during inspiratory loaded breathing as well as during inspiratory loaded breathing associated with diaphragmatic breathing in patients with heart failure...
April 17, 2018: Brazilian Journal of Physical Therapy
https://www.readbyqxmd.com/read/29745785/dose-response-relationship-between-training-load-and-changes-in-aerobic-fitness-in-professional-youth-soccer-players
#9
John F Fitzpatrick, Kirsty M Hicks, Philip R Hayes
PURPOSE: The aim of this study was to compare the dose-response relationship between, traditional arbitrary speed thresholds versus an individualised approach, with changes in aerobic fitness in professional youth soccer players. METHODS: Fourteen youth soccer players, completed a 1500 metre time trial to estimate maximal aerobic speed (km.h-1 , (MAS)) at the start and the end of a six week period. Training load was monitored on a daily basis during this study. External load measures were; total distance covered (TD), total acceleration and deceleration distance > 2m...
May 10, 2018: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/29743827/the-effect-of-carbohydrate-mouth-rinse-on-performance-biochemical-and-psychophysiological-variables-during-a-cycling-time-trial-a-crossover-randomized-trial
#10
Amanda M J Ferreira, Luiz F Farias-Junior, Thaynan A A Mota, Hassan M Elsangedy, Aline Marcadenti, Telma M A M Lemos, Alexandre H Okano, Ana P T Fayh
Background: The hypothesis of the central effect of carbohydrate mouth rinse (CMR) on performance improvement in a fed state has not been established, and its psychophysiological responses have not yet been described. The aim of this study was to evaluate the effect of CMR in athletes fed state on performance, biochemical and psychophysiological responses compared to ad libitum water intake. Methods: Eleven trained male cyclists completed a randomized, crossover trial, which consisted of a 30 km cycle ergometer at self-selected intensity and in a fed state...
2018: Journal of the International Society of Sports Nutrition
https://www.readbyqxmd.com/read/29735880/-the-effects-of-neurofeedback-training-on-physical-psychoemotional-stress-response-and-self-regulation-for-late-adolescence-a-non-randomized-trial
#11
Moon Ji Choi, Wan Ju Park
PURPOSE: The aim of this study was to analyze the effects of neurofeedback training for reducing stress and enhancing self-regulation in late adolescence to identify the possibility of use for nursing intervention. METHODS: A nonequivalent control group pre-post quasi-experimental design was used. Participants were 78 late adolescents assigned to the experimental group (n=39) that received the neurofeedback training and the control group (n=39). Data were collected on heart rate variability (HRV) and skin conductance level (SCL) to assess stress-biomarker response...
April 2018: Journal of Korean Academy of Nursing
https://www.readbyqxmd.com/read/29710791/using-sleep-time-data-from-wearable-sensors-for-early-detection-of-migraine-attacks
#12
Pekka Siirtola, Heli Koskimäki, Henna Mönttinen, Juha Röning
The migraine is a chronic, incapacitating neurovascular disorder, characterized by attacks of severe headache and autonomic nervous system dysfunction. Among the working age population, the costs of migraine are 111 billion euros in Europe alone. The early detection of migraine attacks would reduce these costs, as it would shorten the migraine attack by enabling correct timing when taking preventive medication. In this article, whether it is possible to detect migraine attacks beforehand using wearable sensors is studied, and t preliminary results about how accurate the recognition can be are provided...
April 28, 2018: Sensors
https://www.readbyqxmd.com/read/29706761/effects-of-spinal-cord-injury-in-heart-rate-variability-after-acute-and-chronic-exercise-a-systematic-review
#13
Daniel Bueno Buker, Cristóbal Castillo Oyarce, Raúl Smith Plaza
Background: Spinal cord injury (SCI) above T6 is followed by a loss of sympathetic supraspinal control of the heart, disturbing the autonomic balance and increasing cardiovascular risk. Heart rate variability (HRV) is a widely used tool for assessing the cardiac autonomic nervous system and positive adaptations after regular exercise in able-bodied subjects. However, adaptations in SCI subjects are not well known. Objectives: To compare HRV between able-bodied and SCI subjects and analyze the effects of chronic and acute exercise on HRV in the SCI group...
2018: Topics in Spinal Cord Injury Rehabilitation
https://www.readbyqxmd.com/read/29696208/study-protocol-for-the-fitr-heart-study-feasibility-safety-adherence-and-efficacy-of-high-intensity-interval-training-in-a-hospital-initiated-rehabilitation-program-for-coronary-heart-disease
#14
Jenna Taylor, Shelley E Keating, Michael D Leveritt, David J Holland, Sjaan R Gomersall, Jeff S Coombes
Background: For decades, moderate intensity continuous training (MICT) has been the cornerstone of exercise prescription for cardiac rehabilitation (CR). High intensity interval training (HIIT) is now recognized in CR exercise guidelines as an appropriate and efficient modality for improving cardiorespiratory fitness, a strong predictor of mortality. However, the clinical application of HIIT in a real world CR setting, in terms of feasibility, safety, and long-term adherence, needs further investigation to address ongoing reservations...
December 2017: Contemporary Clinical Trials Communications
https://www.readbyqxmd.com/read/29688115/monitoring-players-readiness-using-predicted-heart-rate-responses-to-football-drills
#15
Mathieu Lacome, Ben Simpson, Nick Broad, Martin Buchheit
PURPOSE: To examine the ability of multivariate models to predict the HR responses to some specific training drills from various GPS variables and to examine the usefulness of the difference in predicted vs actual HR responses as an index of fitness or readiness to perform. METHOD: All data were collected during one season (2016-2017) with players' soccer activity recorded using 5-Hz GPS and internal load monitored using heart rate (HR). GPS and HR data were analysed during typical small-sided games and a 4-min standardized submaximal run (12 km/h)...
April 24, 2018: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/29687266/physiological-and-psychological-determinants-of-whole-body-endurance-exercise-following-short-term-sustained-operations-with-partial-sleep-deprivation
#16
Michail E Keramidas, Magnus Gadefors, Lars-Ove Nilsson, Ola Eiken
PURPOSE: The study examined the effects of short-term field-based military training with partial sleep deprivation on whole-body endurance performance in well-trained individuals. METHODS: Before and after a 2-day sustained operations (SUSOPS), 14 cadets performed a 15-min constant-load cycling at 65% of peak power output (PPO; CLT65 ), followed by an exhaustive constant-load trial at 85% of PPO (CLT85 ). Physiological [oxygen uptake ([Formula: see text]O2 ), heart rate (HR), mean arterial pressure (MAP), cardiac output (CO), and regional oxygenation (TOI) in the frontal cerebral cortex and vastus lateralis muscle] and psychological [effort perception (RPE), affective valence (FS), and perceived activation (FAS)] variables were monitored during exercise...
April 23, 2018: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/29686813/resting-sympatho-vagal-balance-is-related-to-10-km-running-performance-in-master-endurance-athletes
#17
Angelo Cataldo, Antonino Bianco, Antonio Paoli, Dario Cerasola, Saverio Alagna, Giuseppe Messina, Daniele Zangla, Marcello Traina
Relationships between heart rate recovery after exercise (HRR, baseline heart rate variability measures (HRV), and time to perform a 10Km running trial (t10Km) were evaluated in "master" athletes of endurance to assess whether the measured indexes may be useful for monitoring the training status of the athletes. Ten "master" athletes of endurance, aged 40-60 years, were recruited. After baseline measures of HRV, the athletes performed a graded maximal test on treadmill and HRR was measured at 1 and 2 minutes from recovery...
January 12, 2018: European Journal of Translational Myology
https://www.readbyqxmd.com/read/29683919/hiit-in-the-real-world-outcomes-from-a-12-month-intervention-in-overweight-adults
#18
Melyssa Roy, Sheila M Williams, Rachel C Brown, Kim A Meredith-Jones, Hamish Osborne, Michelle Jospe, Rachael W Taylor
PURPOSE: Although high-intensity interval training (HIIT) and moderate-intensity continuous exercise have comparable health outcomes in the laboratory setting, effectiveness studies in real-world environments are lacking. The aim of this study was to determine the effectiveness of an unsupervised HIIT programme in overweight/obese adults over 12 months. METHODS: 250 overweight/obese adults could choose HIIT or current exercise guidelines of 30 minutes/day moderate-intensity exercise...
April 21, 2018: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/29679415/elite-swimmers-internal-markers-trajectories-in-ecological-training-conditions
#19
Philippe Vacher, Guillaume Martinent, Laurent Mourot, Michel Nicolas
PURPOSE: This study examined the trajectories of elite swimmers' recovery-stress states and cardiac vagal-related markers during a three-month training period preceding the national championship and their within-person relationships with perceived control. METHODS: A Multilevel Growth Curve Analysis (MGCA) approach was used with 21 male elite swimmers. Four waves of assessments of psychological (stress, recovery, perceived control) and physiological (heart rate variability, HRV) markers were completed during a three-month training preparation leading to a major competition...
April 21, 2018: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/29677464/improving-the-quality-of-preclinical-research-echocardiography-observations-training-and-guidelines-for-measurement
#20
Daniel G Donner, Helen Kiriazis, Xiao-Jun Du, Thomas H Marwick, Julie R McMullen
Informal training in preclinical research may be a contributor to the poor reproducibility of preclinical cardiology research and low rates of translation into clinical research and practice. Mouse echocardiography is a widely used technique to assess cardiac structure and function in drug intervention studies using disease models. The inter-observer variability (IOV) of clinical echocardiographic measurements has been shown to improve with formalized training, but preclinical echocardiography lacks similarly critical standardization of training...
April 20, 2018: American Journal of Physiology. Heart and Circulatory Physiology
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