Jan 16, 2023 | General, HRV Research
During the early part of the pandemic, in June 2020, ithlete won a grant to try and determine whether or not changes in daily HRV could be used to detect the onset and subsequent severity of the illness. What we didn’t know about at the time we conducted the survey of ithlete users, was how Covid would affect an otherwise healthy athlete’s ability to train during the illness and subsequent recovery.
Let’s take another look.
Jan 18, 2021 | GeneralOverview This post summarises the results from the project ‘Using daily heart rate variability measures to identify the onset and severity of COVID-19’. The project was run by HRV Fit Ltd, and funded by Innovate UK, and aimed to explore whether changes in HRV are...
Jun 23, 2020 | GeneralWe have been asked by the UK Government to test the hypothesis that HRV may be a powerful diagnostic tool for Covid-19. This article will explain the relationship between HRV and Covid, focusing particularly on the implications for people who exercise regularly and...
Jun 12, 2020 | HRV ResearchHRV Fit awarded a grant for business-led innovation in response to global disruption due to COVID-19 After being contacted by ithlete users reporting unusual Heart Rate Variability (HRV) values during possible COVID-19 symptoms, we considered what links there might be...
Sep 17, 2019 | HRV Research
We recommend you take your Heart Rate Variability (HRV) reading at the same time of day – just after waking up and before drinking tea / coffee or checking your emails and social media. But why does it matter what time of day you take an HRV reading, and why can’t you compare a reading taken in the morning with one taken after lunch or in the evening?
Jul 25, 2019 | HRV ResearchResearch performed over several decades has shown that when performed regularly aerobic exercise increases heart rate variability (HRV). Studies, such as this one, demonstrated that changes in HRV have corresponded with changes in performance brought about by training...
Apr 17, 2019 | HRV Research
What is inflamm-aging? And what can you do to ensure you’re inflamm-aging well? A reseaarch summary of the origional paper and how tracking HRV relates.
Feb 27, 2019 | HRV Research
There has also been a large amount of research into the relationship between HRV and stress. The most common and important source of stress to athletes is pre-competitive anxiety and it is not known to what extent this impairs their performance.
Aug 15, 2018 | HRV Research
Although undoubtedly effective in developing strength and fitness, CrossFit also has a reputation for overuse injuries. Can tracking HRV reduce this risk?
Jul 23, 2018 | HRV Research
The third post in the series from Richard Beck, looking at the results of his study.
Jul 2, 2018 | HRV ResearchWho, what & why In a previous post we covered studies that show using HRV to be significantly better than a standard training program in improving the performance of club and recreational runners. Now, a new study by researchers from the Universities of Alicante...
May 14, 2018 | HRV Research
From a practical perspective, measuring your HRV at altitude and comparing to HRV at sea level can show how sensitive you are to the effects of altitude, and that if you are an elite level endurance athlete, you may be more sensitive than mere mortals! Here is the research.
Apr 17, 2018 | HRV Research
When friends told me that data collection was the hardest part of a dissertation, I didn’t believe them. However, trying to get 20 rugby players to collect HRV data as soon as they woke up every morning was definitely challenging.
Apr 9, 2018 | HRV Research
Most endurance athletes are familiar with the term ‘overreaching’. That’s when you do high volumes of intensified training to cause supercompensation. But what actually happens to your body and what measures can you use to identify when overreaching has gone too far and become unproductive?
Mar 8, 2018 | HRV Research
This study followed one looking at changes in HRV during preseason training camp and was designed to assess HRV changes during the early part of the competitive season to see whether the same effects on different positions occurred to the same extent.
Feb 26, 2018 | HRV Research
Athletes and their coaches are always looking for reliable, convenient ways to monitor how well their training is going and performance gains its producing. We know that morning HRV measures are affected by training programmes, but what should we look for to be effectively monitoring adaptation?
Feb 7, 2018 | HRV Research
Masters student and Rugby Union player Richard Beck tells us about his dissertation using ithlete. Additional research into daily HRV responses to rugby training and matches is always welcome and Richard’s study will be a great addition.
Jan 31, 2018 | HRV ResearchThe stress – adaptation response considered to underlie improvements in performance caused by training has hardly been questioned in almost 100 years. Now, a new and thought-provoking review paper questions the basis for this model, especially as it applies to human...
Dec 20, 2017 | HRV ResearchWho, what and why? Coldwater immersion baths are often used to speed up recovery in both endurance and team sports. It is thought to be effective by moving fluid back from muscle tissue into the circulation, preventing reduction in contractility and associated muscle...
Dec 7, 2017 | HRV Research, InfographicsFor over 5 years, the team of Andrew Flatt & Mike Esco have been doing sports performance HRV studies in collegiate athletes. Their latest project involves monitoring HRV in collegiate football players during spring camp. Players in different positions have...
Nov 14, 2017 | HRV ResearchJasmine Raw, Dr Louise Leyland, Dr Carien van Reekum and Dr Michiko Sakaki This study is being performed at the University of Reading, UK to look further into the relationship between age, heart rate variability (HRV) and the ability to regulate emotions and...
Jul 5, 2017 | HRV Research
What is really remarkable about this study is that those following HRV guided training time showed greater 5k performance improvement over their control group counterparts every time!
Feb 2, 2017 | GeneralAfter many post-yoga musings with fellow yoga enthusiasts I became more and more curious about the subtle effects of this ancient practice on our modern way of life – diet, exercise, coping with the un-ending and ever-expanding list of ‘things to do’. It seems that...
Jan 26, 2017 | HRV Research
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.
Jan 19, 2017 | HRV Research
Government guidelines in the UK suggest no more than 14 units per week, equivalent to a standard glass of wine or a pint of lower strength (4%) beer every day for maintaining health. But do these suggestions also apply to athletes in training?
Dec 19, 2016 | HRV Research
Is HIIT a better use of your precious training time than longer sessions of continuous running? An important question for runners is ‘am I more likely to get injured with one type or the other?’
Aug 4, 2016 | HRV Research, Product UpdatesWho, what & why? In an earlier blog post Measurement of HRV we described how heart rate variability (HRV) measurements were originally performed using the Electro Cardiograph (ECG or EKG) and then later by Polar chest straps once those had been validated for beat...
Jun 28, 2016 | HRV ResearchWho, what & why? The three week long cycling Grand Tours (Italy, France, Spain) are well known to be amongst the hardest multi day endurance events in the World. But for most of us that will never experience one, how fatigued do the riders actually become, and...
May 17, 2016 | HRV Research
HRV has been recognised as an index of stress and vulnerability to stress, so it’s no big surprise that researchers have been looking for possible relationships between higher HRV and a longer lifespan.
Apr 4, 2016 | HRV Research
It is very important to take into account the trends reported by both the Week and Month Change indications, as these are the ones that will report an increasing and unsustainable imbalance between stress and recovery.
Feb 29, 2016 | HRV Research
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.
Feb 8, 2016 | HRV Research
PhD candidate Angela Spontelli Gisselman PT, DPT, OCS details the who, what and why of her own recent research in to overuse injuries and the ANS.
Jan 28, 2016 | HRV ResearchWho, 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...
Dec 17, 2015 | HRV ResearchWho, 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...
Nov 26, 2015 | HRV Research
In our latest research summary, we take a look at one of the papers we reviewed carefully when designing ithlete back in 2009
Nov 19, 2015 | GeneralIn 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...
Oct 22, 2015 | HRV Research
Our latest research summary focuses on two studies from Yann Le Meur who sheds some light on how and when parasympathetic overreaching occurs.
Oct 8, 2015 | HRV ResearchWho, 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...
Sep 24, 2015 | HRV Research
Summarising a very interesting piece of research looking at how work affects individuals in both psychological and physiological respects.
Sep 8, 2015 | ithlete Tips
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
Aug 27, 2015 | InfographicsHere is a more visual summary of the excellent recent research by Andrew Flatt and Dr Mike Esco looking at heart rate variability (HRV) being used to predict performance in collegiate women’s soccer players.
Aug 13, 2015 | HRV Research
Summarising a very interesting piece of research looking at predicting team sports performance using heart rate variability (HRV).
Jun 24, 2015 | HRV Research
Using the Framingham data this paper focuses on heart rate variability (HRV) and resting heart rate as predictors of cardiovascular disease, type-2 diabetes, and the so-called metabolic syndrome that also includes obesity and blood fat levels.
Jun 8, 2015 | HRV Research
Our latest research summary takes a look at a case study of heart rate variability (HRV) in two elite triathletes, one successful, one overtrained
May 26, 2015 | ithlete Tips
ithlete Pro is ideal for the user who values the data garnered via the ithlete mobile app and wants to extract greater insight from your daily reading.
May 22, 2015 | HRV Research
Research summary of an intelligent study trying to understand the relationship between daytime heart rate variability (HRV), HRV response to periods of worry and sleep disturbance.
May 5, 2015 | HRV Research
Researchers at the University of Salzburg, Austria and the University of California wanted to test the idea that if daytime heart rate variability (HRV) is strongly linked to physical and mental health, would HRV also be a predictor of healthy sleep?
Apr 9, 2015 | HRV Research
This is an interesting study that suggest that HRV has the potential to deliver a sport independent comparable training load number, a goal long sought after by sports scientists and coaches.
Mar 25, 2015 | HRV Research
A very interesting post looking at predicting team sports performance using heart rate variability
Jun 18, 2014 | HRV Research
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.