Jem Arnold
This is a quick transfer of a massive twitter thread I posted in June, 2023. Since Txitter is more difficult to read these days without an account, and even less worth it than ever to create an account.. I will try to transfer some threads back to here. This is basically just an archive of … Continue reading Cadence Affects Everything, and it Doesn’t Really Matter
A meta-analysis on endurance athletes' training found that while high-intensity interval training (HIIT) above the maximal metabolic steady state (MMSS) significantly improved oxygen uptake (V̇O2peak), there was no detectable difference in time-trial (TT) performance. This suggests that although increased V̇O2peak is achievable through HIIT, translating it into enhanced TT performance may require a different approach or potentially longer timeframes. The findings may inform athletes on balancing low/intermediate intensity and HIIT sessions.
How accurate is your gadget of choice at predicting your individual response to exercise? How close is your watch's V̇O₂max estimate? How close was the predicted race time to your real results? How far apart are your FTP/threshold estimates between a ramp test, a 20 minute test, and a 40-60 minute time-trial? How come with … Continue reading Interpreting Group-Level Data for Individual-Level Application
Here is a brief summary of our recent paper from the University of British Columbia Environmental Physiology Laboratory authored by my colleague Dr. Assaf Yogev and our colleagues. We think this is a paper that athletes & coaches can use to help understand uncertainty in performance data collection. The results here can be used as … Continue reading Study Summary – Reliability of Common Cycling Performance Markers
Oxygenation Response Profiles represent the SmO2 trend as a function of progressive exercise intensity measured at the vastus lateralis. Two general profiles have been observed that may reveal some so-far unexplained, but apparently systematic physiological variance between subjects of differing fitness and muscle tissue typology. Unexplained variation means we still have something to learn about human physiological response to exercise.
Spare Cycles 