Atrial Fibrillation (AF) and HRV

AF affects the performance of the heart, especially amongst older, less healthy people. But it also affects a significant percentage of Masters athletes. A large study over a 20 year period shows an interesting correlation between Atrial Fibrillation (AF) and HRV. There are optimum values of HRV and resting heart rate, above and below which the chances of developing AF increase significantly.

Fat adaptation for exercise – how far can it go?

Despite a great deal of discussion about, and anecdotal evidence to support the benefits of a low carbohydrate high fat (LCHF) diet, there have been few studies examining the degree to which athletes’ metabolisms have been altered to take advantage of this dramatic change in fuel for exercise.

How well does HRV reflect overall health?

Who, what and why? Heart rate variability, or HRV, has long been considered to reflect overall health. Since the 1980s, Professor Steven Porges described HRV as an index not only of stress, but of vulnerability to stress. In other words, the higher someone’s HRV, the...

Can HRV help detect concussion?

Who, what & why Traumatic brain injuries, such as concussion, are unfortunately an occupational hazard in many contact sports. As I write this, sad news was announced today that 23 year old rugby player Lilly Partridge had died following a head injury during...

An Interview with Chris Kilmurray

In this podcast ithlete founder Simon Wegerif talks to rider and coach Chris Kilmurray of Point1Athletic. As well as discussing his own HRV journey Chris provides examples of how different athletes respond to training techniques/volumes and importantly how HRV is a...

Can your Morning HRV Predict your Cycling Performance?

Who, what, why? In two previous posts, we summarised studies that showed an almost unbelievable ability for night-time / morning heart rate variability (HRV) to predict the changes in performance of both swimmers and club runners. HRV and Swimming Time Trial Results...

Nutrition, Stress and HRV

This week’s Tuesday Tip focuses on nutrition the impact on stress. Do you reach for those ‘convenience foods’ after a stressful day? If so take a look at some useful nutritional tips we’ve put together

Energy drinks and HRV

A short summary of Dr Mike T. Nelson’s paper on the impact of a Monster energy drink on heart rate, heart rate variability (HRV) and ride time to exhaustion.

HRV after exercise: implications for training prescription

Introduction Researchers Jamie Stanley & Jonathan Peake from the University of Queensland, with the guidance of heart rate variability (HRV) sports research supremo Martin Buchheit have put together an important review article with over 120 references. The paper...

ithlete at the 6th International HRV Symposium

This weekend we are off to Halle in the former Eastern Germany to present & exhibit at the 6th International HRV Symposium. This is a biannual event that consists of a full day program of both invited speakers who are authorities on particular aspects of HRV...

Breathing and heart rate variability: The Research

The impact of breathing on different HRV measurements: implications for monitoring athletes Who, what & why? It has long been known that breathing affects heart rate variability (HRV). Many studies have tracked HRV in athletes – some have used free (spontaneous)...

Measurement of HRV

Early measurement of HRV Although irregular heart rhythms and their potential for predicting health outcomes had been noticed by Chinese medics all the way back to 400 AD, it really took the Nobel prize winning invention of the Electro Cardio Graph (ECG or EKG) by...

A look back at the Triathlon Show

Back in March we visited the Triathlon Show at Sandown Park, London. The whole weekend was a great success and the ithlete team thoroughly enjoyed the experience.  We got to talk with many ithlete users and athletes interested in heart rate variability, have a look...

Heart Rate Variability Monitoring in Team Sports

by Chris Black & Ben Stirling Ben Stirling and Chris Black both work in professional rugby league and have a particular interest in monitoring and physical performance, both in terms of injury prevention and strength and conditioning. Monitoring in Team Sports As...

HRV as a predictor of training performance

About me In my role as a Sport Scientist working for a Premier League football Club we are always seeking new ways to quantify and measure the condition of our players, particularly how well recovered they are and how ready they are to train.  After some extensive...

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