# Adjusting VO2 Max Sessions for lack of sleep

**URL:** <https://www.trainerroad.com/forum/t/adjusting-vo2-max-sessions-for-lack-of-sleep/10287>\
**Category:** Training\
**Created:** [January 22, 2019, 11:51am UTC](https://www.trainerroad.com/forum/t/adjusting-vo2-max-sessions-for-lack-of-sleep/10287 "2019-01-22T11:51:17Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Mackannovic](https://sea2.discourse-cdn.com/trainerroad/forum/user_avatar/www.trainerroad.com/mackannovic/32/7692_2.png) [@Mackannovic](https://www.trainerroad.com/forum/u/Mackannovic)\
**Post date:** [January 22, 2019, 11:51am UTC](https://www.trainerroad.com/forum/t/adjusting-vo2-max-sessions-for-lack-of-sleep/10287/1 "2019-01-22T11:51:17Z")

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I have two young kids and occasionally they interrupt sleep so I don’t always get the optimal 7 hours plus or have a very broken nights sleep. I’ve heard that if you don’t sleep well you should amend your session for the next day appropriately especially if it’s something intense like VO2 max efforts.  
Is this true or something that others have done in the past and if so how should I adjust the sessions?

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**Author:** ![larry](https://sea2.discourse-cdn.com/trainerroad/forum/user_avatar/www.trainerroad.com/larry/32/12653_2.png) [@larry](https://www.trainerroad.com/forum/u/larry)\
**Post date:** [January 22, 2019, 8:49pm UTC](https://www.trainerroad.com/forum/t/adjusting-vo2-max-sessions-for-lack-of-sleep/10287/2 "2019-01-22T20:49:47Z")

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I don’t quite have enough of a working knowledge on this subject to give you a guideline on how to adjust your workouts after poor sleep, but hopefully these research articles help shed some light on the effects of sleep on VO2 Max:

> **[The effects of an acute bout of sleep on running economy and VO2 max - PubMed](https://pubmed.ncbi.nlm.nih.gov/8497012/)**
>
> Synchronized human sleep has been shown to decrease activation of the sympathetic nervous system, resulting in reduced levels of oxygen consumption. This is in direct conflict with sympathetic arousal, which coincides with the initiation of exercise....

> **[Sleep quality and duration are associated with performance in maximal...](https://pubmed.ncbi.nlm.nih.gov/28502838/)**
>
> Sleep duration and quality are associated, at least in part, with performance during maximal incremental test among healthy men, with losses in Wmax and HRmax. In addition, our results suggest that the relationship between sleep patterns and...

Here’s some information I found:

> **[Why sleep is the forgotten factor during intense training](https://www.setantacollege.com/sleep-the-forgotten-factor-during-intense-training/)**
>
> Discover why a healthy sleep pattern is crucial for athletes and sportspeople during periods of intense training

Hope this helps!