Sometimes a low resting heart rate is a result of lots of exercise and really efficient heart functioning. Other times, a low resting heart rate is indicative of the heart condition bradycardia. 


If you’re reading this, it’s likely that your resting heart rate rating is red or amber too low. In this case, our data scientists: 

  • Don’t have enough data to finalise your rating, which would be the case if you’ve been with us for less than 4 weeks. If after 4 weeks, we deem your resting heart to be lower than average, but healthy, we’ll change your rating to green and calculate your VO2 max too. 



  • Have determined that your resting heart rate is too low for other reasons and may require medical attention. In this case, if would be irresponsible of us to calculate a VO2 max for you, instead, we recommend you have a chat to your GP – especially if anything you’ve read here worries you.

If you have an average RHR above 57bpm displayed within your HeadUp app, but don't have your VO2 max rating yet, please send a screenshot of your Heart dashboard to our support team and we'll look into it for you.

Note: Scientists avoid calculating VO2 max for anyone over 65 years of age! HeadUp's analysis models are based on current scientific practice, which is why if you're 65 years or older, we won't generate a VO2 max rating for you either!

Eventually, we hope to develop an algorithm that caters for all age groups, but in the meantime we simply have to err on the side of caution and hold off from rating your VO2 max.