Welcome to our heart rate variability (HRV) blog, your resource for harnessing heart rate variability for
- Research - detailed information on HRV data pre-processing and various analysis methods of HRV for scientific research
- Wellness - information about HRV for health and wellness professionals
- Sports - information about HRV for sport and exercise professionals as well as enthusiastic athletes.
Featured articles
Research, Wellness, Sports
Accuracy of smartphone-based HRV measurement
Discover how the Kubios app’s readiness measurement uses smartphone-based seismocardiography (SCG) to deliver highly reliable, wearable-free HRV metrics.
Wellness, Sports
Understanding HRV readiness score
Discover how HRV reveals your physiological readiness, what the different readiness score categories mean, and what’s their impact on training, stress management, and overall health.
Wellness
Physiological age
Physiological age reflects how well your body is functioning compared to typical age-related benchmarks. Learn how it’s estimated through HRV and the factors that influence it.
Latest articles
Wellness, Sports
How to improve your HRV
Want to improve your daily recovery and resilience? Discover 7 scientifically proven strategies to boost your heart rate variability (HRV) naturally and optimize your health.
Research, Wellness
HRV: An objective measure of stress
Discover why heart rate variability (HRV) is the ultimate objective tool for tracking daily stress, monitoring your recovery, and stopping burnout before it happens.
Research, Wellness, Sports
Accuracy of smartphone-based HRV measurement
Discover how the Kubios app’s readiness measurement uses smartphone-based seismocardiography (SCG) to deliver highly reliable, wearable-free HRV metrics.
Research, Wellness, Sports
Respiratory rate: A key vital sign for accurate HRV
Respiratory rate, the number of breaths per minute, is the key to accurate HRV analysis. Discover how Kubios estimates respiratory rate and why it’s important.
Wellness, Sports
HRV and recovery: A doctor’s guide
Dr. Antti Rintanen reveals his go-to metrics for turning complex HRV data into simple, practical recovery strategies to better manage stress and prevent burnout.
Research, Wellness, Sports
Measuring HRV with your smartphone
Kubios HRV app now enables resting HRV measurements using your phone’s built-in accelerometer. Find out how this works and the science behind it.
Wellness
Mental health and HRV
Discover how heart rate variability (HRV) reflects your mental health, and how monitoring your HRV can help you take meaningful steps towards enhanced mental well-being.
Sports, Wellness
Managing fatigue with HRV
Tired of feeling tired? Regular monitoring of HRV can help you gain insights into underlying causes of fatigue and differentiate between acute and chronic fatigue.
Sports, Wellness
Exercise as medicine
Physical activity is a scientifically proven tool to enhance metabolic health. Learn how regular exercise optimizes cellular metabolism, enhancing vitality and wellbeing.
Sports
Ventilatory thresholds
Ventilatory thresholds indicate the transition from aerobic to anaerobic metabolism. Learn how these thresholds can be reliably estimated using heart rate variability data.
Wellness
Physiological age
Physiological age reflects how well your body is functioning compared to typical age-related benchmarks. Learn how it’s estimated through HRV and the factors that influence it.
Sports
HRV-guided training
HRV-guided training tailors workout intensity based on daily heart rate variability readings. Discover how this personalized approach helps optimize athletic performance and recovery.
Wellness, Sports
Understanding HRV readiness score
Discover how HRV reveals your physiological readiness, what the different readiness score categories mean, and what’s their impact on training, stress management, and overall health.
Research, Wellness, Sports
Heart rate variability normal range
This article introduces HRV normal values, what is good HRV, how HRV declines with age, and what are the gender specific differences in HRV.
Research, Wellness
ANS function analysis
Find out about the standard Ewing’s battery tests for assessing autonomic nervous system (ANS) function, and how Kubios HRV software analyzes ANS function.
Research, Wellness, Sports
About heart rate variability
This introductory article explains what is heart rate variability (HRV), how it’s measured, what are the different components of HRV, and how HRV is analyzed.
Research, Wellness
ECG waveform analysis
The ECG waveform for a normal heart rhythm is characterized by three main components: P wave, QRS complex, and T wave. ECG waveform analysis is crucial for identifying various heart conditions.
Sports
Sport and exercise analysis
This article introduces sport and exercise analysis options available in the Kubios HRV software. Find out the added value of HRV in assessing training intensity and athlete’s performance.
Research
PNS and SNS indexes
This article introduces the proprietary Kubios HRV indexes for assessing parasympathetic nervous system (PNS) and sympathetic nervous system (SNS) activations from HRV.
Research
Beat detection and HRV time series
This article examines the accuracy of beat detection from ECG and PPG recordings, exploring how sampling rates and analytical methods influence this process and its subsequent impact on HRV analysis accuracy.
Research
Preprocessing of HRV data
This article provides guidance on preprocessing HRV data, highlighting the importance of removing noise, correcting beat detection, and eliminating nonstationarities to ensure accurate HRV analysis.
Research
HRV analysis methods
This article describes the various time-domain, frequency-domain, and nonlinear HRV analysis methods. Find out how different HRV parameters are calculated to better understand their physiological interpretation.