# VO2 training percent **URL:** \ **Category:** Training\ **Created:** [September 5, 2020, 6:15pm UTC](https://www.trainerroad.com/forum/t/vo2-training-percent/42291 "2020-09-05T18:15:09Z")\ **Posts on this page:** 13\ **Page:** 3
**Author:** ![old\_but\_not\_dead\_yet](https://sea2.discourse-cdn.com/trainerroad/forum/user_avatar/www.trainerroad.com/old_but_not_dead_yet/32/58519_2.png) [@old\_but\_not\_dead\_yet](https://www.trainerroad.com/forum/u/old_but_not_dead_yet)\ **Post date:** [September 7, 2020, 10:58am UTC](https://www.trainerroad.com/forum/t/vo2-training-percent/42291/46 "2020-09-07T10:58:08Z")
Yes, the question is does it matter how hard you go, the answer scientists give to which is yes, at least up to the point that the intervals are too short so you are really training something else. ---
**Author:** ![Nope0337](https://sea2.discourse-cdn.com/trainerroad/forum/user_avatar/www.trainerroad.com/nope0337/32/174110_2.png) [@Nope0337](https://www.trainerroad.com/forum/u/Nope0337)\ **Post date:** [September 7, 2020, 1:20pm UTC](https://www.trainerroad.com/forum/t/vo2-training-percent/42291/47 "2020-09-07T13:20:23Z")
Sooooooo, if heart rate and RPE are fatigue dependent, would you say training VO2 would be fatigue dependent? 🤯 ---
**Author:** ![aydraper](https://sea2.discourse-cdn.com/trainerroad/forum/user_avatar/www.trainerroad.com/aydraper/32/54303_2.png) [@aydraper](https://www.trainerroad.com/forum/u/aydraper)\ **Post date:** [September 7, 2020, 1:49pm UTC](https://www.trainerroad.com/forum/t/vo2-training-percent/42291/48 "2020-09-07T13:49:09Z")
I’ve recently switched to turning OFF erg on VO2 max intervals and go as hard as I can for the prescribed period keeping in mind the number of intervals I have to do. I use the power target as a guide. On good days I end with NP at or above all the interval Targets. Bad days, I’m fading the last few intervals. But overall I feel like I’m getting the adaptations in the right zone and letting my body dictate how hard it is that day. ---
**Author:** ![Otoman](https://sea2.discourse-cdn.com/trainerroad/forum/user_avatar/www.trainerroad.com/otoman/32/1756_2.png) [@Otoman](https://www.trainerroad.com/forum/u/Otoman)\ **Post date:** [September 9, 2020, 1:54am UTC](https://www.trainerroad.com/forum/t/vo2-training-percent/42291/49 "2020-09-09T01:54:19Z")
Good call. I’m going to use this approach. Thanks! ---
**Author:** ![old\_but\_not\_dead\_yet](https://sea2.discourse-cdn.com/trainerroad/forum/user_avatar/www.trainerroad.com/old_but_not_dead_yet/32/58519_2.png) [@old\_but\_not\_dead\_yet](https://www.trainerroad.com/forum/u/old_but_not_dead_yet)\ **Post date:** [September 9, 2020, 2:37am UTC](https://www.trainerroad.com/forum/t/vo2-training-percent/42291/50 "2020-09-09T02:37:05Z")
Isn’t NP supposed to be an estimate of the _metabolic_ impact? Does it apply to VO2max intervals, which are supposed to cause _cardiac_ adaptations? ---
**Author:** ![aydraper](https://sea2.discourse-cdn.com/trainerroad/forum/user_avatar/www.trainerroad.com/aydraper/32/54303_2.png) [@aydraper](https://www.trainerroad.com/forum/u/aydraper)\ **Post date:** [September 10, 2020, 12:20am UTC](https://www.trainerroad.com/forum/t/vo2-training-percent/42291/51 "2020-09-10T00:20:26Z")
NP is normalized power or that was my abbreviation for it. I’m just trying for normalized power in the VO2max range and go as hard as I can and finish the interval ---
**Author:** ![old\_but\_not\_dead\_yet](https://sea2.discourse-cdn.com/trainerroad/forum/user_avatar/www.trainerroad.com/old_but_not_dead_yet/32/58519_2.png) [@old\_but\_not\_dead\_yet](https://www.trainerroad.com/forum/u/old_but_not_dead_yet)\ **Post date:** [September 10, 2020, 11:09am UTC](https://www.trainerroad.com/forum/t/vo2-training-percent/42291/52 "2020-09-10T11:09:37Z")
Yes, but does that train VO2max as much as hitting the same average power? I’m not sure it does. ---
**Author:** ![aydraper](https://sea2.discourse-cdn.com/trainerroad/forum/user_avatar/www.trainerroad.com/aydraper/32/54303_2.png) [@aydraper](https://www.trainerroad.com/forum/u/aydraper)\ **Post date:** [September 10, 2020, 12:09pm UTC](https://www.trainerroad.com/forum/t/vo2-training-percent/42291/53 "2020-09-10T12:09:42Z")
Now I understand your point/question. My average power is never more than a watt or two off NP for these intervals. Still doing them on the trainer so no coasting and no downhills. Just taking off erg mode ---
**Author:** ![Emmodd](https://sea2.discourse-cdn.com/trainerroad/forum/user_avatar/www.trainerroad.com/emmodd/32/12908_2.png) [@Emmodd](https://www.trainerroad.com/forum/u/Emmodd)\ **Post date:** [September 13, 2020, 8:09pm UTC](https://www.trainerroad.com/forum/t/vo2-training-percent/42291/54 "2020-09-13T20:09:37Z")
Aren’t you working the wrong system doing this. If you’re going as hard as you can then surely that’s well above vo2 max le; anaerobic or neuromuscular. Vo2 max should be worki5 the aerobic system. ---
**Author:** ![jarsson](https://sea2.discourse-cdn.com/trainerroad/forum/user_avatar/www.trainerroad.com/jarsson/32/69117_2.png) [@jarsson](https://www.trainerroad.com/forum/u/jarsson)\ **Post date:** [September 13, 2020, 9:05pm UTC](https://www.trainerroad.com/forum/t/vo2-training-percent/42291/55 "2020-09-13T21:05:33Z")
I am not sure it is possible to hold purely anaerobic for the duration of proper vo2 max interval. By going hard you are depleting anaerobic contribution and working purely aerobic. ---
**Author:** ![Captain\_Doughnutman](https://sea2.discourse-cdn.com/trainerroad/forum/user_avatar/www.trainerroad.com/captain_doughnutman/32/7694_2.png) [@Captain\_Doughnutman](https://www.trainerroad.com/forum/u/Captain_Doughnutman)\ **Post date:** [September 14, 2020, 6:28am UTC](https://www.trainerroad.com/forum/t/vo2-training-percent/42291/56 "2020-09-14T06:28:02Z")
Yes. I just hooked up my trial WKO and looked at a recent 1min@150% session. Turns into a 50/50 an/aerobic interval surprisingly quick. ---
**Author:** ![bbarrera](https://sea2.discourse-cdn.com/trainerroad/forum/user_avatar/www.trainerroad.com/bbarrera/32/14734_2.png) [@bbarrera](https://www.trainerroad.com/forum/u/bbarrera)\ **Post date:** [September 14, 2020, 1:17pm UTC](https://www.trainerroad.com/forum/t/vo2-training-percent/42291/57 "2020-09-14T13:17:57Z")
Keep in mind that features like that rely on a well fed PDC. So there will be times you can’t trust some of the features. ---
**Author:** ![road\_wars](https://sea2.discourse-cdn.com/trainerroad/forum/user_avatar/www.trainerroad.com/road_wars/32/7746_2.png) [@road\_wars](https://www.trainerroad.com/forum/u/road_wars)\ **Post date:** [October 8, 2020, 12:21am UTC](https://www.trainerroad.com/forum/t/vo2-training-percent/42291/58 "2020-10-08T00:21:06Z")
I really like the approach of turning off ERG for VO2 Max. I am going to use this method. I am pretty good at picking an effort level i know I can sustain. It is not about going as hard as you can, but picking an effort you can maintain for the interval. [Previous page](https://www.trainerroad.com/forum/t/vo2-training-percent/42291.md?page=2)