Increases in Heart Rate Variability Signal Improved Outcomes in Rapid Response Team Consultations: A Cohort Study by Nawal Salahuddin, Azam Shafquat, Qussay Marashly, Khaled Juan Zaza, Moh’d Sharshir, Moazzum Khurshid, Zeeshan Ali, Melissa Malgapo, Mouhamad Ghyath Jamil, Mohamed Shoukri, Mohammed Hijazi, Bandar Al-Ghamdi

“…Background. Reduced heart rate variability (HRV) indicates dominance of the sympathetic system and a state of “physiologic stress.” …”
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THE INFLUENCE OF HEART RATE VARIABILITY ON CLINICAL COURSE OF CHRONIC HEART FAILURE AND RENAL FUNCTION IN ATRIAL FIBRILLATION PATIENTS by E. A. Polyanskaya, S. V. Mironova, N. A. Koziolova

“…Evaluation of structural and functional condition of the left ventricle (LV) and kidneys in permanent atrial fibrillation patients (AF) with ischemic chronic heart failure (CHF) according to mean 24 hour heart rate and heart rate variability.Material and methods. …”
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Orchard variable-rate spraying method integrating GNSS and wind-excited audio-conducted leaf area density by Hangxing Zhao, Hangxing Zhao, Hangxing Zhao, Shenghui Yang, Shenghui Yang, Shenghui Yang, Wenwei Li, Wenwei Li, Han Feng, Han Feng, Shijie Jiang, Shijie Jiang, Weihong Liu, Weihong Liu, Jingbin Li, Yongjun Zheng, Yongjun Zheng, Songchao Zhang

“…As a result, few fully functional variable-rate spraying systems have been developed based on this parameter.MethodsThis study presents a variable-rate spraying method that integrates global navigation satellite system (GNSS) positioning with wind-excited audio-conducted estimation of canopy leaf area density. …”
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Cyclic Alternating Pattern of EEG Activities and Heart Rate Variability in Parkinson’s Disease Patients during Deep Sleep by Zilin Cheng, Qi Li, Xueliang Zou, Zhijun Zhong, Qian Ouyang, Chunmei Gan, Fang Yi, Yaxing Luo, Yuhao Mao, Dongyuan Yao

“…Background: Sleep disturbance and autonomic dysfunction are often found in Parkinson’s disease (PD) patients, but little is known about changes in cyclic alternating patterns (CAPs) of electroencephalographic (EEG) activities and heart rate variability (HRV) during deep sleep in PD patients. …”
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Effect of Variable Chilled Water Flow Rates and Temperature on Performance of Double Temperature Chiller with Large Temperature Glide Zeotropic Refrigerant by Liu Jian, Zhang Xiaosong

“…To study the effect of variable chilled water flow rates and temperature on double temperature chiller with large temperature glide zeotropic refrigerant, the chiller’s performance under different conditions was investigated experimentally, including mass concentration ratio of R32/R236fa (0.4~0.6, 0.5~0.5, 0.6~0.4), chilled water flow rates change from 0.25 m3/h to 0.45 m3/h and temperature change of the high temperature chilling water. …”
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SEX DIFFERENCES OF VLF100 AND VLF50 SPECTRUM OF HEART RATE VARIABILITY IN HEALTHY INDIVIDUALS OF YOUNG AGE AND OLDER SUBJECTS WITH VASCULAR PATHOLOGY IN TERMS OF SEVEN-TEST, HYPERV... by Арнольд Наумович Флейшман, Татьяна Валентиновна Кораблина, Игорь Германович Халиулин, Станислав Альфредович Петровский, Артем Андреевич Неретин

“…Objective – to give a comparative evaluation of sex differences of the autonomic provision of the body in young adults of different constitutional and autonomic types and in the subjects of older age in vascular pathology in terms of functional loads based on the analysis of new indices of the oscillations with a period of 100 seconds (VLF100) and the oscillations with a period of 50 seconds (VLF50) in the spectrum of heart rate variability. Methods. Physiological methods included a five-step registration of heart rate with functional tests of low intensity (seven-test, deep breathing and active orthostasis). …”
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Synchronization of autonomic control loops of blood circulation in patients with COVID-19 by Viktoriia V. Skazkina, Natalia S. Krasikova, Ekaterina I. Borovkova, Yurii M. Ishbulatov, Alexander Yu. Gorshkov, Andrei I. Korolev, Valida A. Dadaeva, Andrei A. Fedorovich, Alexander V. Kuligin, Oxana M. Drapkina, Anatoly S. Karavaev, Anton R. Kiselev

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Peculiarities of Heart Rhythm Variability in Children and Adolescents with Arrhythmias in the Presence of Comorbidity of the Upper Gastrointestinal Tract by S. V. Potapenko

“…Predomination of sympathetic activity in children from the IInd group was confirmed by low pNN50 rate (25,38±11,88 % versus 34,52±18,54 %, р<0,05). …”
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Analysis of heart rate variability in patients with primary and secondary invasion with pinworms before and after a course of specific therapy by K. А. Stepanchenko

“…Whereas, high absolute and relative values of very low-frequency VLF-component of heart rate variability indicators in patients with re-invasion were preserved. …”
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Movement Variability and Perceived Motor Competence in Children with High or Low Risk Willingness in a Virtual Playground by Lise Storli, Håvard Lorås

“…Results: The results indicated that HRW children displayed significantly greater movement variability, including higher joint movement variability and increased exploration of challenging areas compared to LRW children. …”
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Spectral analysis of heart period variability in anorexia nervosa by Platiša Mirjana M., Gal Vera, Damjanović Svetozar S.

“…In supine posture, anorexic patients demonstrated the reduced low frequency spectral power. Compared to control women, during standing posture anorexic patients showed higher heart rate, reduced total variability and high frequency spectral powers. …”
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Evaluation of real-time stereo vision-controlled variable rate sprayer performance in grapevine shoot detections and spray application by Hongyoung Jeon, Heping Zhu

“…The stereo vision system was evaluated as a grapevine shoot detection sensor under various conditions in average grapevine shoot lengths (4.1–29.1 cm), travel speeds (3.2–8.0 km h-1) and outdoor illuminations (12,718 – 67,912.0 lx). A real-time variable–rate sprayer prototype with two air assistance levels at the air outlet (low (air speed of 5.9 m s-1) and high (11.3 m s-1)) tested for its spray performance against a conventional sprayer. …”
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Heart rate variability, daily cortisol indices and their association with psychometric characteristics and gut microbiota composition in an Italian community sample by Sebastiano Ravenda, Leonardo Mancabelli, Sara Gambetta, Margherita Barbetti, Francesca Turroni, Luca Carnevali, Marco Ventura, Andrea Sgoifo

“…The goal of this study was to determine the extent to which individual differences in resting measures of vagally-mediated heart rate variability (HRV) and cortisol levels were associated with psychometric and specific gut microbiota characteristics in seventy-five (38 females) healthy individuals. …”
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Immediate effects of structured and natural deep breathing on heart rate variability and blood pressure in community-dwelling older adults by Ting-Ting Yeh, Yi-Chieh Ho

“…Background: This study investigated the immediate effects of structured deep breathing (SDB) and natural deep breathing (NDB) on heart rate variability (HRV) and blood pressure (BP) in community-dwelling older adults. …”
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Phosphorus‐Based Variable‐Rate Pig Slurry Application Reduces Greenhouse Gas Emissions and Improves Phosphorus Plant Availability by Catarina Esteves, David Fangueiro, Miguel Martins, Henrique Ribeiro

“…PgS was applied at three increasing rates (R1, R2 and R3) to soils with varying P levels: very low (VL), low (L) or medium (M). …”
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Indices of heart rate variability are not associated with obesity in patients 30-60 years of age without chronic noncommunicable diseases by Olga N. Dzhioeva, Elizaveta A. Rogozhkina, Vladimir A. Shvartz, Elena N. Shvartz, Anton R. Kiselev, Oxana M. Drapkina

“…Objective –– to compare heart rate variability (HRV) in patients aged 30-60 years without chronic noncommunicable diseases (CNCDs) with and without obesity. …”
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ASSOCIATION BETWEEN FREQUENCY OF PHYSICAL EDUCATION CLASSES AND HEART RATE VARIABILITY IN ADOLESCENTS BOYS: A CROSS-SECTIONAL STUDY by Jéssika Karla Tavares do Nascimento Faustino da Silva, Ozeas de Lima Lins Filho, Antonio Henrique Gernmano-Soares, Raphael Mendes Ritti-Dias, Breno Quintella Farah

“…ABSTRACT Physical inactivity is associated with low heart rate variability (HRV) in adolescents. …”
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Regular postexercise sauna bathing does not improve heart rate variability: A multi‐arm randomized controlled trial by Earric Lee, Sascha Ketelhut, Petri Wiklund, Joel Kostensalo, Iiris Kolunsarka, Hans Hägglund, Juha P. Ahtiainen

“…Abstract Regular exercise has been shown to increase heart rate variability (HRV) for different populations. …”
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Evaluating acute stress responses to height: validity of heart rate variability, respiratory markers, and competitive state anxiety inventory by Lukáš Psohlavec, Mike Rogerson, Tomáš Brtník, Jiří Baláš

“…Based on the effect size (ηp2), the largest differences between low- and high-height conditions for physiological markers were observed in heart rate (HR) (ηp2 = 0.910), ventilation (ηp2 = 0.906), oxygen uptake (ηp2 = 0.891; p &lt; 0.001), and tidal volume (VT) (ηp2 = 0.872). …”
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Impact of heart rate variability-based exercise prescription: self-guided by technology and trainer-guided exercise in sedentary adults by Antonio Casanova-Lizón, Agustín Manresa-Rocamora, Agustín Manresa-Rocamora, José Manuel Sarabia, José Manuel Sarabia, Diego Pastor, Alejandro Javaloyes, Iván Peña-González, Manuel Moya-Ramón, Manuel Moya-Ramón

“…Wearable technologies and the use of heart rate variability (HRV) make it possible to personalise workouts, optimise fitness and improve adherence. …”
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