You can make a difference in the Apple Support Community!

When you sign up with your Apple Account, you can provide valuable feedback to other community members by upvoting helpful replies and User Tips.

Looks like no one’s replied in a while. To start the conversation again, simply ask a new question.

Cardio Fitness

Got my apple watch today and was really excited to try out all the features. Went for a 25 minute walk because i read you had to at least go for a 20 minute walk to get a cardio fitness read, also went for a session at my training studio.

Unfortunately it says no data in my health app, regarding cardio fitness.

It may take a few days to get data, but the problem is that there are no data sources in cardio fitness, it doesn't list my watch.

I've tried a bunch of tips online, does anyone have a solution to this?

Thanks.

Apple Watch Series 8

Posted on Oct 10, 2022 11:52 AM

Reply
Question marked as Top-ranking reply

Posted on Oct 10, 2022 11:55 AM

Apple says;

Your Apple Watch gives you a cardio fitness ESTIMATE by measuring how hard your heart is working during an outdoor walk, run or hike.



To estimate your cardio fitness level, your Apple Watch also takes into account your:

Age

Sex

Weight

Height

Medications that may affect your heart rate

It can take at least 24 hours wearing your Apple Watch, followed by several workouts and passive measurements with your Apple Watch before you receive an initial ESTIMATE.

Certain conditions or medications that limit your heart rate may cause an overestimation of your VO2 max.


Are VO2 max predictions accurate?

The relationship between heart rate and VO2 max is not precise, and it varies from one individual to another. So Apple’s predicted VO2 max may not be very accurate. The estimate is also dependent upon your Apple Watch’s heart rate sensor. And while that’s pretty good, it is not infallible.


Why is there no VO2 max data in the Health app?

If you can’t find any VO2 max readings in the Health app, that is probably because you have not yet logged the right kind of workouts with your watch. Only three workout types can produce an estimated VO2 max on Apple Watch: Outdoor Walk,Outdoor Run and hiking.


VO2 max relates to maximal exertion. So you’ll need to log a pretty intensive workout to generate a reading. And you’ll need to sustain it for at least 20 minutes.

1 reply
Question marked as Top-ranking reply

Oct 10, 2022 11:55 AM in response to Horseborn

Apple says;

Your Apple Watch gives you a cardio fitness ESTIMATE by measuring how hard your heart is working during an outdoor walk, run or hike.



To estimate your cardio fitness level, your Apple Watch also takes into account your:

Age

Sex

Weight

Height

Medications that may affect your heart rate

It can take at least 24 hours wearing your Apple Watch, followed by several workouts and passive measurements with your Apple Watch before you receive an initial ESTIMATE.

Certain conditions or medications that limit your heart rate may cause an overestimation of your VO2 max.


Are VO2 max predictions accurate?

The relationship between heart rate and VO2 max is not precise, and it varies from one individual to another. So Apple’s predicted VO2 max may not be very accurate. The estimate is also dependent upon your Apple Watch’s heart rate sensor. And while that’s pretty good, it is not infallible.


Why is there no VO2 max data in the Health app?

If you can’t find any VO2 max readings in the Health app, that is probably because you have not yet logged the right kind of workouts with your watch. Only three workout types can produce an estimated VO2 max on Apple Watch: Outdoor Walk,Outdoor Run and hiking.


VO2 max relates to maximal exertion. So you’ll need to log a pretty intensive workout to generate a reading. And you’ll need to sustain it for at least 20 minutes.

Cardio Fitness

Welcome to Apple Support Community
A forum where Apple customers help each other with their products. Get started with your Apple Account.