Jem Arnold
The charts we looked at last week have some 'hidden' interesting features that I want to go into more detail on. This will get into mathematical derivations of metabolic equations, estimating Gross Efficiency, fuel utilization between fatty acids & glucose, and aerobic & anaerobic contribution to power output. This might get complicated, but it will … Continue reading Deriving Power from VO2 and VO2 from Power
Recently I was asked to compare how closely WKO-modeled VO2 (VO2mod) tracks against actual measured VO2. My last few articles looked at how measured pulmonary VO2 (pVO2) tracked with HR for both continuous and intermittent workouts. So let's look again at a few VO2max intervals and see how well the modeled numbers track to measured … Continue reading VO2 Measured to Modeled
I wanted to share a quick visual comparison of another athlete trying the Hard-Start VO2max workout. This might be helpful for comparing your own data in Strava and dialing in your individualized workout targets. The athlete wasn't sure of his precise power targets, so he plugged in something reasonable and gave it a go. After … Continue reading More Comparisons for Hard-Start VO2max
This week I want to look at VO2 and SmO2 response to one of my favourite VO2max workout protocol. We will see how systemic metabolism responds to hard-start VO2max intervals. The experiments were fascinating and I'll try to give some recommendations to dial in your own individual workout prescription. Hard-Start Intervals The principle of the … Continue reading Comparing Metabolic Response to Hard-Start VO2max Intervals
Let's continue looking at the Sprint Interval Training workout from Part 1. Using the VO2 Master Pro wearable VO2 analyzer and Moxy muscle oxygen monitors together to measure systemic oxygen consumption (VO2), and local muscle oxygen saturation (SmO2). Sprint Interval Training - Complete Recovery Intervals We left off with the suggestion that O2 delivery to working muscle was limiting the rate of … Continue reading VO2 Master Pro & Moxy – Revealing Metabolic Limitation – Part 2
Spare Cycles 