Results 21 to 30 of about 16,166,191 (388)

Heart rate and respiratory rate influence on heart rate variability repeatability: effects of the correction for the prevailing heart rate

open access: yesFrontiers in Physiology, 2016
Background: Since heart rate variability (HRV) is associated with average heart rate (HR) and respiratory rate (RespRate), alterations in these parameters may impose changes in HRV.
Jakub Sławomir Gąsior   +5 more
doaj   +1 more source

Modelling heart rate kinetics. [PDF]

open access: yesPLoS ONE, 2015
The objective of the present study was to formulate a simple and at the same time effective mathematical model of heart rate kinetics in response to movement (exercise).
Maria S Zakynthinaki
doaj   +1 more source

Heart Rate Variability and Cardiac Vagal Tone in Psychophysiological Research – Recommendations for Experiment Planning, Data Analysis, and Data Reporting

open access: yesFrontiers in Psychology, 2017
Psychophysiological research integrating heart rate variability (HRV) has increased during the last two decades, particularly given the fact that HRV is able to index cardiac vagal tone.
S. Laborde, E. Mosley, J. Thayer
semanticscholar   +1 more source

Reliability and Validity of Commercially Available Wearable Devices for Measuring Steps, Energy Expenditure, and Heart Rate: Systematic Review

open access: yesJMIR mHealth and uHealth, 2020
Background Consumer-wearable activity trackers are small electronic devices that record fitness and health-related measures. Objective The purpose of this systematic review was to examine the validity and reliability of commercial wearables in measuring ...
D. Fuller   +11 more
semanticscholar   +1 more source

Heart rate variability

open access: yesClinical Cardiology, 1990
AbstractReduced heart rate variability carries an adverse prognosis in patients who have survived an acute myocardial infarction. This article reviews the physiology, technical problems of assessment, and clinical relevance of heart rate variability.
M, Malik, A J, Camm
openaire   +2 more sources

Investigating sources of inaccuracy in wearable optical heart rate sensors

open access: yesnpj Digital Medicine, 2020
As wearable technologies are being increasingly used for clinical research and healthcare, it is critical to understand their accuracy and determine how measurement errors may affect research conclusions and impact healthcare decision-making. Accuracy of
Brinnae Bent   +3 more
semanticscholar   +1 more source

Does resting heart rate measured by the physician reflect the patient’s true resting heart rate? White-coat heart rate

open access: yesIndian Heart Journal, 2018
Objectives: In cardiology, resting heart rate (HR) and blood pressure (BP) are key elements and are used to adapt treatment. However HR measured in consultation may not reflect true resting HR.
Benoit Lequeux   +2 more
doaj   +1 more source

The relation of ambulatory heart rate with all-cause mortality among middle-aged men : a prospective cohort study [PDF]

open access: yes, 2015
The aim of this study was to investigate the association between average 24-hour ambulatory heart rate and all-cause mortality, while adjusting for resting clinical heart rate, cardiorespiratory fitness, occupational and leisure time physical activity as
Clays, Els   +7 more
core   +3 more sources

Interaction between heart rate variability and heart rate in pediatric population.

open access: yesFrontiers in Physiology, 2015
Background: Heart rate variability (HRV) is primarily heart rate (HR) dependent, and therefore, different HR may exert different impact on HRV. The objectives of the study were to evaluate the effect of HR on HRV in children and to determine whether HRV ...
Jakub Sławomir Gąsior   +5 more
doaj   +1 more source

A Methodical Approach to Scrutinize the Role of Body Mass Index in Heart Rate Increment and Recovery

open access: yesJournal of Gandhara Medical and Dental Sciences, 2022
OBJECTIVES Heart rate (HR) is a crucial health indicator and is also one of the health factors we need to pay explicit attention to. Body Mass Index (BMI) is considered a cofactor in heart-related issues like heart rate increment and recovery. Thus a
Muhammad Haidar Zaman   +6 more
doaj   +1 more source

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