Thank you! I will use this to guide my training for a few months and report back.
danspam
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ParticipantParticipant
Generally speaking, the tempo of the samples was consistent, EXCEPT that on one segment I got an E4 reading for my first sample, so the 3.7 was “late”
Thank you for your comments and suggestions. Yes, next time I will do a single reading and five minute intervals. I’m currently waiting on a new batch of test strips to arrive. I’ll probably attempt a exercise-bike based text next.
One tangential question: since I’m able to control effort/power applied directly, is it better to use power as my “knob” or heart rate when focusing workouts on building aerobic base? I would have guessed “power” based on the totality of what I’ve read here at this sight, but I’m not 100% sure, since you guys do often talk about HR, _and_ I have seen that at a given power level, my heart rate can vary considerably based on other factors.
Many, many thanks for all of your input.
Participantforgot to add: speeds are in mph. The first (1.8mph) segment was 15 minutes warmup, all subsequent segments were 7 minutes. Also, I weighted 169 pounds at the end of the test, in case conversion to power is of any utility.
ParticipantWell, I did a lactate test this morning before your post. I did seven minute segments and took two (or in case 3) readings after each segment, which resulted in about 2 minutes of downtime between segments. This may have corrupted my test, but I still felt like I got reasonable looking data out of it.
The whole test was on a Sole F63 treadmill @ 15% incline. Raw data below:
speed End HR M1 M2 Avg M
0 0.9
1.8 105 0.8 1 0.9
2 110 0.7 0.8 0.75
2.2 117 1.6 1.5 1.55
2.4 122 1.2 1.2 1.2
2.6 126 1.6 1.5 1.55
2.8 132 2 1.9 1.95
3 144 2.7 2.6 2.65
3.2 153 3.2 3.7 3.45
3.4 160 5.4 4.7 5.05
3.6 171 7.3 7.2 7.25on the 3.2 segment I got an E4 as my first reading, and then 3.2 and 3.7 on subsequent readings.
It seems based on this that at 15% incline, 2.8mph and 132bpm is right up against my AeT.
Attachments:
You must be logged in to view attached files.ParticipantAfter reading the link on MaxLASS, I am a bit confused:
1) They don’t seem to say how to determine MaxLASS
2) They seem to imply that calculating V4 is more useful and discourage determining MaxLASS despite talking about it in the first module
3) They seem to indicate that 7 minute segments are better for lactate testing than 3-5. Thoughts?ParticipantScott – no worries and nothing wrong on your part. I only switched up mid ride from a (sort of) drift test because I was (finally) able to get good readings on the lactate meter.
I will follow your protocol on my next biking day. Today will be incline treadmill and I will do the same with increasing speeds at a constant slope.
Thank you!
Participantyes, I have; so, I was well prepared for failing a lot before I start to get the hang of it.
I tried testing again some during tonight’s workout, with a few minor tweaks to my technique, and with one more day’s experience, and I think I got more sensible results.
The workout is here
I was aiming for constant 140W, originally planning to use this as a bit of a drift test, but as my lactate meter reading improved, I switched up a bit at the end.
At the first dropout (around 0:10:00), I got readings of 1.4 and 1.4
At the second dropout (around 0:50:00), I got readings of 1.7 and 1.9I decided to increase my target power to 150W for the final five minutes and see what lactate reading I would get. Immediately after finishing, I made a reading of 2.3. I did not have any more strips on hand so I could not repeat my reading.
My TP premium has expired so I can’t easily run the numbers until I export the data and do my own spreadsheet; visually it looks like this test may have shown a little bit of cardiac drift, which would be somewhat consistent with the lactate readings, I think. Is that right?
I’ll do a rigorous test on the treadmill soon.
ParticipantI may go through $50 in test strips before I get the skills to get solid readings down. I tried to take some readings during last night’s workout. 4 minutes into the warmup I got an sensible reading (1.4) but at 15 minutes in, I got 3.5, 2.1, 3.9, E, 1.4 on consecutive readings, whereupon I gave up for the night.
as always thank you for your input.
ParticipantScott,
Thank you for taking a look. The posts above got a bit out of order. Some of the older posts that I mentioned that I thought maybe got caught in a spam filter suddenly appeared recently but were originally posted in response to Scott Johnston’s responses. You can see which ones I’m talking about by the out-of-sequence post #s.
Almost all of the data is recorded via chest strap (Polar H10). On the specific test you noted, my watch lost pairing with the strap and fell back on its own internal (optical, wrist-based) meter. This does illustrate a possible vector for silent data corruption. I will turn the wrist-based meter all the way off for future tests to be sure.
I am in possession of a lactate meter, but I’ll have to rely on solo testing and so far, my results have varied wildly with immediate consecutive tests, leading me to believe that my collection skills are not yet up to snuff.
I have an exercise bike workout planned today and I will try testing during the workout to see if my skills have improved enough to get steady/reliable results without making today a rigorous AeT test.
I live in a suburb of Atlanta, GA, and the closest place I can find to do a MET with a protocol that looks like it will find AeT is in Augusta, about a 2 hour drive. I will definitely go get a test if I keep getting confusing results at home.
Thanks again for looking at the data
ParticipantToday’s test targeting 130 bpm.
ParticipantThank you. It may be a mental aspect…what I perceive as difficult or exhausting may just be way lower than most of your trained athletes. Or maybe I just have an outlier physiology. Or it could be the heat. I appreciate your insights. I will continue to explore.
a couple of recent treadmill tests @ 15% / 3.0 mph for illustration:
ParticipantTwo recent treadmill tests on TP to illustrate are linked below. Both have some flaws but hopefully the lack of cardiac drift is evident.
Both tests were done at 3.0mph, 15% incline. The first test is a little bit short (I underestimated warm up time) and the second one, my recorder lost pairing with chest HRM and reverted to wrist near the end, but there is still nearly an hour of good data.
http://tpks.ws/7ZZG65YAEGNL3TI4FEYTRMETSU
http://tpks.ws/BDW4Z3SH2H7EPTI4FEYTRMETSUParticipantParticipantSome recent bike tests:
FTP2KZBGY7LLBTI4FEYTRMETSU
GLFMCQKFM43QDTI4FEYTRMETSU
DMRP2Q2UQYRNLTI4FEYTRMETSU
BBY5HVASU2UY5TI4FEYTRMETSU
HGI3E3NHYZ5NTTI4FEYTRMETSU
4DOCEBVEKMPXBTI4FEYTRMETSU
AIGRQUXPBNPUNTI4FEYTRMETSU
VUULQZPSCNO6RTI4FEYTRMETSU
LR43XTIEHV625TI4FEYTRMETSU
TX4DQU4I6IM2JTI4FEYTRMETSUParticipantI alternate incline treadmill walking with exercise biking. Here are a few recent treadmill walks. I believe that 9/14 was the first of these where I was actively trying to get the air temperature a bit lower.
(When I posted this with links, the post just never shows up in the thread.
Trying now with just the workout IDs – the part at the very end of the URLs)CXP5O7FWKSL2JTI4FEYTRMETSU – Walking 9/20/20 2.6mph @ 15%
TXKJHORZ54YBPTI4FEYTRMETSU – Walking 9/14/20 3.0mph @ 15%
BDW4Z3SH2H7EPTI4FEYTRMETSU – Walking 9/12/20 3.0mph @ 15% (Note – Watch lost connection to Polar HRM around minute 70, and fell back to inaccurate wrist-based meter, hence the big drop)
7ZZG65YAEGNL3TI4FEYTRMETSU – Walking 9/10 3.0mph @ 15%
76INHWXIJN6BHTI4FEYTRMETSU – Walking 9/7/20 2.8mph @ 15%If this posts, I’ll put bike workouts next