More Ways to Use the Moxy to Interpret A Workout at Cycling Center Dallas

Leonardo Spencer - 2015-01-29T09-56-33 - Snapshot

I keep finding out more and more about this Moxy Muscle Oxygen Sensor, and I can't wait to share it!

Here's an image of a longtime client and his workout from a few days back. He's always good about getting in early, getting a solid warmup, and he drinks his hydration like a saltwater fish. The squiggly red line is his Hemoglobin count, and the light blue line is his Muscle Oxygen. This workout consisted of six 5-minute intervals at 107% of Critical Power, with just 2.5 minutes of recovery. He. NAILED. IT!

How so? Well, first, I'm not showing his actual wattage line, but we did not need to, because it was so consistent. Every interval was 107%. The consistency of the wattage is also reviewed in the consistency of the Muscle Oxygen. See the green line hidden beneath the light blue? That's W', and after the first 15 minutes of warmup, you'll see that the value stayed rather static, and actually remained above 60% reserve after the first interval was completed. The ONLY trouble I see with this workout is that after interval #4, Leo's ThB values began falling. I'm interpreting this as a sign of fatigue, and maybe his dehydration was outpacing his rehydration. He is an incredibly heavy sweating individual, and I suspect that he loses maybe 2-3 Kg over the course of an hour. But here's my takeaway from this image...

If we looked at this, and it repeated itself in other workouts, it would be a sign that Leo had adapted to his CP value at 209w, and a retest might be worthwhile. How so? Well, look at his SmO2 in light blue... it was consistent. REALLY consistent. My analysis leaves me believing that he can successfully handle this load, and while his RI (Relative Intensity) was at 93%, which signifies a pretty hard 60 minutes, we need to 'Go Up'. Had SmO2 dropped significantly, well, that would have indicated that maybe he wasn't ready for six intervals at low Vo2 range. 

If you want to get a different look at the file, here's a link... http://ppst.co/18CzDsv

Here's another example, taken later that night. 

Jim Porter - 2015-01-29T19-16-48 - Snapshot_copy
Jim has been coming in consistently now for several weeks, and while we're still about four weeks out from an official Critical Power test, it might be time to RAISE THE NUMBER! Once again - look at his SmO2 values in light blue. They were rather consistent. Now, look at the white line, which indicated Critical Power. We raised his numbers about 5%, and the SmO2 values didn't change. In the middle of interval #4, we raised the CP again, and Muscle Oxygen still didn't decrease! You can't get as good a look at the ThB values because of scaling, but they did not change all that much. But again, the important thing is that, as he raised his intensity on the intervals, metabolically speaking, nothing much changed. He hit his wattage goals, and while he was highly fatigued, did NOT lose much else. Here's the link to his file: http://ppst.co/18CzHsq

I'm starting to believe that this little product is going to really help my athletes and myself as we continue to focus on ways to help THEM improve their performance through proper intensity. Moxy allows me to see what's going on intrinsically, while wattage reveals what's going on extrinsically. If we get consistent wattage results, but SmO2 begins to drop, well, I read that as strain that is adequate to affect a response from the body. But if it's static or within a range, well, then we need to test, because the subject has adapted to the load. The result? MORE POWER and more POWER-TO-WEIGHT. 

This device could be revolutionary. Let's see what else it can tell us over the next several months! If you're interested, Moxy monitors can be purchased through Cycling Center Dallas for $1000, and we'll help you with setup. 


Comments

Go set a watch, man.
August 31, 201516:06
Go set a watch, man.
Just a heads-up for Moxy Monitor users, today SportTracks.mobi software announced the integration of data from the Moxy Monitor: http://sporttracks.mobi/press/sporttracks-moxy-partnership