Article
Chemistry, Multidisciplinary
Hung-Kai Chen, Fueng-Ho Chen, Shien-Fong Lin
Summary: The study developed an AI model to construct a guided exercise prescription system for sub-healthy groups, which achieved high testing accuracy and low mean absolute error in predicting heart rate differences after following the suggested exercise modes. The system provides quantitative exercise prescriptions to guide the sub-healthy group to engage in effective exercise programs.
APPLIED SCIENCES-BASEL
(2021)
Article
Biology
Abigail E. E. Colby, Alex R. R. DeCasien, Eve B. B. Cooper, James P. P. Higham
Summary: The greater male variability (GMV) hypothesis suggests that males exhibit more variability in traits than females, including brain size and internal brain structure. This study provides evidence of GMV for brain size in rhesus macaques, highlighting their potential as models for sex-biased brain-based disorders.
PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
(2022)
Article
Computer Science, Information Systems
Tianhui Li, Wenxi Chen
Summary: This study evaluates the behaviors of heart rate variability (HRV) during exercise stress test (EST) and bathing, and suggests that daily bathing can serve as an alternative to EST at home.
Article
Environmental Sciences
Pat R. Vehrs, Nicole D. Tafuna'i, Gilbert W. Fellingham
Summary: This study examined the %HRR-%VO(2)max and %HRR-%VO2R relationships in males and females during treadmill running and cycling. The results showed that these relationships did not follow the line of identity and %HRR was closer to %VO(2)max than %VO2R. There were no significant differences in the intercepts of the relationships between males and females or between running and cycling. This suggests a significant variability in the HR-VO2 relationship among individuals, resulting in potential errors in prescribing intensity of aerobic exercise.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH
(2022)
Article
Psychology, Biological
Yoram K. Kunkels, Arie M. van Roon, Marieke Wichers, Harriette Riese
Summary: The study compared the performance of two wireless heart rate monitors with a wired reference method and found that they performed well in laboratory settings, with Cortrium showing more reliable data in ambulatory settings.
Article
Multidisciplinary Sciences
David M. Presby, Summer R. Jasinski, Emily R. Capodilupo
Summary: Stress can contribute to the progression of diseases, but there are few methods for continuously measuring stress. This study investigated if wearable devices can be used to measure stress by analyzing cardiovascular signals. The results showed that heart rate and heart rate variability changed after running or high-stress work, indicating that wearables can quantify stressful events and help individuals manage stress.
Review
Physiology
Bruce Rogers, Thomas Gronwald
Summary: Detrended Fluctuation Analysis (DFA a1) as an alternative method for exercise load assessment shows promising potential. A DFA a1 value of 0.75, known as the Heart Rate Variability Threshold (HRVT), is associated with aerobic threshold in various populations. DFA a1 can also be used for exercise load management and real-time tracking.
FRONTIERS IN PHYSIOLOGY
(2022)
Article
Multidisciplinary Sciences
Denise Cardoso Ribeiro Papa, Lilian Del Ciello de Menezes, Ibis Ariana Pena, Ana Clara Silveira, Natalia Padula, Suellen de Oliveira Veronez Silva, Roberta Caveiro Gaspar, Eduardo Dati Dias, Celso Ferreira, Luciano Vieira de Araujo, Todd A. Astorino, Helen Dawes, Carlos Bandeira de Mello Monteiro, Talita Dias da Silva
Summary: The purpose of this study was to analyze cardiac autonomic modulation in individuals with SCI during postural transition from sitting to orthostatism position using a cognitive VR task. The results showed that there was better sympathovagal balance between sitting and 90 degrees positions in the SCI group who performed the VR task.
Article
Physiology
Alexandre P. Gutknecht, Martin Gonzalez-Figueres, Thomas Brioche, Olivier Maurelli, Stephane Perrey, Francois B. Favier
Summary: The purpose of this study was to determine the optimal altitude for hypoxic training and investigate the relationship between pulse oxygen saturation and training-induced performance improvement. The results showed that hypoxic training at an altitude of 1,500 meters significantly improved anaerobic performance, while the correlation between pulse oxygen saturation and performance improvement during training was weak.
FRONTIERS IN PHYSIOLOGY
(2022)
Article
Transportation
Seyed Ahmad Reza Saeidi Hosseini, Yaser Hatamzadeh
Summary: This study examined how various travel/built environmental and individual/household characteristics influence the walking durations of males and females in Rasht, Iran. It found that the walking durations varied under different conditions and contexts for males and females. Household characteristics, such as car ownership, had a greater negative effect on male walking duration.
TRANSPORTMETRICA A-TRANSPORT SCIENCE
(2021)
Article
Computer Science, Interdisciplinary Applications
M. Moya-Ramon, M. Mateo-March, I. Pena-Gonzalez, M. Zabala, A. Javaloyes
Summary: The validity and reliability of short and ultra-short HRV measurements in elite cyclists were assessed using different smartphone applications. Both Elite HRV and Welltory showed good correlation with electrocardiogram measurements and can be implemented to monitor HRV. There were no differences between short and ultra-short measurement lengths.
COMPUTER METHODS AND PROGRAMS IN BIOMEDICINE
(2022)
Article
Medicine, General & Internal
Naerton Jose Xavier Isidoro, Fernando Rocha Oliveira, Rodrigo Daminello Raimundo
Summary: This study evaluated the effects of strength exercises for upper and lower limbs on cardiac autonomic modulation in elderly women. The results showed that resistance exercises performed with low-intensity loads and a greater number of repetitions did not significantly affect cardiac autonomic modulation and blood pressure levels, indicating good safety for elderly women.
Article
Sport Sciences
Carlo Ferri Marini, Davide Sisti, Arthur S. Leon, James S. Skinner, Mark A. Sarzynski, Claude Bouchard, Marco B. L. Rocchi, Giovanni Piccoli, Vilberto Stocchi, Ario Federici, Francesco Lucertini
Summary: This study investigated the relationships between %HRR and %VO2R, as well as %HRR and %VO2max, in 737 healthy and physically inactive participants. Results showed high interindividual variability in both relationships, suggesting a need to rethink the relationships between intensity variables to ensure appropriate prescription of health-enhancing aerobic exercise.
MEDICINE & SCIENCE IN SPORTS & EXERCISE
(2021)
Article
Physiology
Rafal Pawlowski, Pawel Zalewski, Julia Newton, Agnieszka Piatkowska, Edward Kozluk, Grzegorz Opolski, Katarzyna Buszko
Summary: Heart Rate Asymmetry (HRA) refers to the differences between accelerations and decelerations in human heart rate. The methods used for HRA assessment can also be applied to evaluate asymmetry in blood pressure variations (BPA). Through the analysis of heart rate and blood pressure signals from vasovagal patients and healthy individuals, it was found that HRA indicators changed only in the control group during tilt stage. Additionally, the vasovagal patients had significantly different pulse pressures compared to the healthy subjects.
FRONTIERS IN PHYSIOLOGY
(2023)
Article
Physiology
Fernando Sousa Honorato, Lysleine Alves de Deus, Andrea Lucena Reis, Rodrigo Vanerson Passos Neves, Hugo de Luca Correa, Ana Paola Brasil Medeiros, Debora Fernanda Haberland, Radames Maciel Vitor Medeiros, Jonato Prestes, Carlos Ernesto Santos Ferreira, Thiago Santos Rosa
Summary: This study analyzed the influence of hypobaric hypoxia on cardiac autonomic function and its association with physical fitness. The results showed a decrease in heart rate variability indices during hypoxia and no association between the time of onset of hypoxia symptoms and physical fitness. The study suggests that cardiac autonomic modulation is more sensitive to hypobaric hypoxia than self-reported symptoms.
FRONTIERS IN PHYSIOLOGY
(2022)