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VO2 max connect vs beep test calc

Hi there I'm wondering why there's such a big difference between the connect vo2 figure and my predicted vo2 from beep test results. I've been told tbe 20m beep is a reasonable predictor.
I've only been running with my 935 for 2 weeks and have been given a guided threshold of 170bpm with vo2 of 48.
I'm a 37yr old male and can consistently run at least a 14.1 beep test which gives me a vo2 of 60 according to the calculators I've used online.

I'm not sure if i should manually change my vo2 figure on the watch or just give it more time and runs.

Any help appreciated.

0 chunkywizard over 7 years ago

Firstly, Garmin say you need to give it at lest 4 weeks to get used to you, so be patient. You can?t manually input it so you will have to wait. VO2 figures will always be better after a best effort. Have you run hard with it yet? Are you wearing a chest strap for HR or just using optical? It could be that you are wearing the watch too loose. What?s your max HR set to, is that correct? Was it measured with a HR strap? And recently?

and lastly, VO2 numbers from calculators and watches are all just estimates. The only real way to get a proper number is get a lab test. Bottom line, you might find the watch isn?t set up right or it hasn?t had time to learn you. When it does then it will get close to your beep test calculation if the calculator you use is half way accurate.

HTH

CW

0 GGSGGSGGS over 7 years ago

Thanks for the reply. I've used chest strap a few times for threshold tests but I've not done a hard 5k etc just hard efforts within runs. I've set max to 201 which I've hit a few times up hills with chest strap.
Ill do a max hr run and a 5k over the next few weeks. I figure it just needs more data even though i was riding heaps prior with it.

0 tommy060289 over 7 years ago

What is a 5k/10k/HM PB for yourself? It will be pretty obvious whether you are nearer 47 or 60 VO2 Max

0 GGSGGSGGS over 7 years ago

I've never been a big runner but I've got a broken wrist now and decided to train for an ultra trail run. Last time i went hard at a 5k with slight elevation gain i was at 17:40. I used to play a lot of squash and my best beep was 15/6 and id get ckose to 15 now if i pushed. I reckon these scores are better due to a good pivot turn more than a huge engine which is why I'm curious. I think my vo2 is less than the beep score tells me and I'm hoping the 935 can give me some accuracy to base a training plan and race plan on.

0 tommy060289 over 7 years ago

17:40 with a VO2 Max of about 60 seems around right. I run sub-17 and Garmin estimates me at 69 (again probably high) and my HRV measurement app suggests 64 so maybe its just a case of your Garmin is still trying to figure out your engine:)

0 chunkywizard over 7 years ago

I have a VO2Max of 60 on the 935 and a 5K PB of 18:58. The 935 will end up saying you are at high 60's I reckon.

0 timgrose over 7 years ago

Agree 17:40 and 60 VO2 Max is in the ballpark.

However if you have broken your wrist presume you aren't able to run that fast right now? VO2 Max is an indicator of current fitness and not necessarily potential.

What pace and HR are you seeing on your current runs?

BTW you don't need to run "hard" to get a "better" VO2 Max. Ideally you just need to run at a steady pace for a reasonable period. The watch says at least 10 mins but suggest do bit longer as a minimum.

0 GGSGGSGGS over 7 years ago

Yeah i wouldn't be that quick now. I reckon 18:30 ish would be max with my wrist. My current runs are all trail 10-15km so lots of up and single track mtb with a pace around 6:30 - 7:00 average. I'll see how it goes over the next few weeks and check in. Cheers for the feedback folks