The Fenix 5+ has several sensors including a heart rate sensor. Why is it still necessary to use a chest heart rate monitor in order to get scores on lactate threshold and HRV? Or is there a widget that can measure this with the sensor on the watch?
Why... Because bar elite athletes Joe blogs does not normally wear a belt 24 hours a day more so only for activities. Ohr is a bit of fun, and should be taken as that whomever says otherwise is bring disengenuous IMHO and the stats you quote are not really performance ones just hr measures alone... Your actual question though was about performance metrics which only a hrm run or tri has such.
Not sure if you have seen the fun tops at primary that have a built in belt, you just put the pop on centre bit from a hrm run 1st gen into it. Not tried it yet but seems novel way to remove the need for a belt in part...
fin.pimlico I don’t know if your response was to me or the OP. I’ve read your post several time but I have no idea what you’re trying to say. English isn’t my first language though.
Then why is it tracking all day stress (HRV) using the OHR?
Good question. I don't know. Perhaps all day stress is calculated assuming that the user is quite sedentary most of the time, but during a vigorous activity an OHR has a hard time getting even simple HR reading, let alone HRV. But that's just my speculation.
hi guys, my view is that if your wanting to get into the statistics and know lacte threshold or HRV, garmin would prefer you use a device HRM that has decaded of reliability at getting close to the true data as you can get than OHR that is viewed as not that reliable.
Its to do with how the Firstbeat algorithms work and the level of accuracy they currently require. So the stress score can be calculated with the current Garmin OHRM because it's good enough to pick up a decent HRV signal when you're moving around. It's not good enough to capture a high fidelity HRV signal when you're running however, which is why you still need to use a chest strap to get performance metrics like lactate threshold.
Because they are just data based algorithms Firstbeat may one day figure out a way to calculate some of the performance metrics that still require a chest strap. It wasn't that long ago that getting a "stress score" required doing a 1 minute test with a chest strap every day.
It seems that Garmin uses different levels of acceptable accuracy. Jumpmaster (skydiving) it for decision support related to life and death and has a disclaimer. VO2 max is important to know as athlete and shown but there are better ways to measure it, Race prediction is interesting but i would not use it as a starting point for my race strategy. The link with firstbeat is interesting Carl, i hope that they can improve the algorithm and it will be incorporated by Garmin as a standard feature.
Keep in mind that the belt measures the electrical signals that control your heart, and are very accurate. The optical measurement by the watch is done by detecting changes in the way light passes through your skin (due to the blood flow). The optical method isn't as accurate as the electrical method, and that makes it unsuitable for measurements requiring high accuracy.
