Hard-start intervals use an initial hard effort at a power output above what would be sustainable for the intended interval duration, to enhance oxygen uptake and cardiac output. Let's talk about some of the reasons for why we might want to perform hard-start intervals, when they might be appropriate for our training, and when they might not be.
Here are some of my current thoughts and questions on the topic of VO2max trainability, time near VO2max, hard-start and intermittent intervals, and adaptations toward capacity and efficiency.
For this experiment we wanted to look at physiological response to the same workout in the LAB vs in the FIELD. It's fascinating! There are a lot of conflicting and equivocal findings, ultimately suggesting that there is a high degree of individual variability in how each of us produce power across modalities and conditions.
The 5-1 assessment we run is a submaximal intermittent step test that uses NIRS and VO2 to identify physiological thresholds and training zones. I've mentioned it before. We use the general terms ‘Aerobic Threshold’ (AeT) and ‘Anaerobic Thresholds’ (AnT) for the first and second breakpoints respectively, and a polarized 3-zone model between these thresholds. The … Continue reading Comparing VO2 Master Pro to TrueOne 2400 – Part 2
Before my recent surgery I performed a whirlwind of self-testing to answer some pressing questions before being off the bike for a while. Now that I'm in recovery mode I'm working through all the data I collected and trying to write up the more interesting findings. I was able to perform an informal pilot study … Continue reading Comparing VO2 Master Pro to TrueOne 2400 – Part 1