Tag Archives: iThlete

New Study: Agreement between a smart-phone pulse sensor application and ECG for determining lnRMSSD

Here’s a brief overview of our latest study, in press with JSCR.  We compared the ithlete finger sensor with ECG in supine, seated and standing positions. We are continuing our testing with other popular smartphone HRV apps in the near future. Thanks … Continue reading

Posted in Heart Rate Variability | Tagged , , , , | Leave a comment

New Study: Individual HRV responses to preseason training in D-1 women’s soccer players

Here’s a brief look at a new paper of ours in press with JSCR. This is a very small study that we submitted as “Research Note” that looked at changes in HRV (via finger pulse sensor) and training load (via … Continue reading

Posted in Heart Rate Variability, Monitoring | Tagged , , , , , , , | 2 Comments

Early HRV changes relate to the prospective change in VO2max in female soccer players

It’s been a good start to the Thanksgiving break with the  acceptance of our latest study entitled “Initial weekly HRV response is related to the prospective change in VO2max in female soccer players” in IJSM (Abstract below). We’re currently working … Continue reading

Posted in Heart Rate Variability, Monitoring | Tagged , , , , , , , | Leave a comment

RMSSD: The HRV Value provided by ithlete and BioForce

Most individuals who take their sport or training very seriously have likely heard of heart rate variability (HRV). Thanks to devices such as the Polar RS800 (Formerly S810) wrist-watch/heart rate monitor and eventually ithlete, the first (to my knowledge) commercially … Continue reading

Posted in Heart Rate Variability | Tagged , , , , | 34 Comments

Reviewing HRV data after a 9 week training cycle

It’s been a quite a while since I can honestly say that I completed a successful training cycle with little interruption. After Christmas break I had a 9 week cycle tentatively planned out. As you’ll see, the plan changes due … Continue reading

Posted in Heart Rate Variability, Training Log | Tagged , , , | 4 Comments

Making HRV More Practical For Athletes: Measurement Frequency?

Perhaps the biggest limitation with HRV monitoring in a team setting is obtaining and maintaining compliance from athletes. Daily HRV measurements can become monotonous, particularly for athletes who may not fully understand the value of the data. One question I’ve … Continue reading

Posted in Heart Rate Variability, Training Log | Tagged , , , , | 4 Comments

HRV Data from a High School Sprinter

Here is some more data and analysis from a nationally ranked high school sprinter (Junior) that I have using ithlete. Please note that the sprinter trains primarily with his sprint coach. I work with him roughly 3 days/week on mobility, … Continue reading

Posted in Heart Rate Variability | Tagged , , , , , , , | 2 Comments

4 Months of HRV, sRPE, Tap Test and Sleep score: Charts, Tables and Analysis

Since about mid-September of 2012 I started using a CNS Tap Test to see if it provided any indication of training fatigue or if it correlated with my HRV. In addition to tracking my tap test and HRV, I’ve also documented … Continue reading

Posted in Heart Rate Variability | Tagged , , , , , , | 1 Comment

Reflections, Thoughts & Some HRV Data Analysis from 2 Athletes

This week Carl Valle had a great article posted on Mladen’s site here. It’s definitely worth the read if you train athletes. This article inspired me to reflect on where HRV fits in to training, for whom it may work … Continue reading

Posted in Heart Rate Variability, Programming | Tagged , , , , , | Leave a comment

Recent HRV trend analysis and a new collaboration

As I try and further my understanding of the seeming incomprehensible autonomic nervous system I try to simplify the role HRV may play in monitoring athletes. There is one main issue I’m having; I don’t yet fully grasp the ANS … Continue reading

Posted in Heart Rate Variability, Programming, Training Log | Tagged , , , , , | Leave a comment