News for hackers. Stuff that matters.

A comment on Ugandan runner Jacob Kiplimo completes first ever sub-57 minute half marathon. Parent comment

Re:Ugandan runner Jacob Kiplimo completes first ever sub-57 ... by wging on Tuesday February 18, 2025 @10:16AM (#43090457)
Those error bars are too wide for the formula to be useful for training based on heart rate percentages.
[ Parent | on HN ]
Re:Ugandan runner Jacob Kiplimo completes first ever sub-57 ... by igouy on Tuesday February 18, 2025 @12:22PM (#43092407)
I've already said that I have found it to be useful:

https://news.ycombinator.com/item?id=43083815

:so please explain why I haven't :-)

[ Parent | on HN ]
Re:Ugandan runner Jacob Kiplimo completes first ever sub-57 ... by wging on Wednesday February 19, 2025 @04:13AM (#43100182)
You are doing nothing that requires the formula to be precise. A 10bpm standard error, meaning the max is very possibly 20bm off where you think it is, means that you can't reliably distinguish between efforts that someone doing serious training would want to be distinguished.
[ Parent | on HN ]
Re:Ugandan runner Jacob Kiplimo completes first ever sub-57 ... by igouy on Wednesday February 19, 2025 @01:08PM (#43105260)
> You are doing nothing that requires the formula to be precise.

Exactly.

My guess is that neither are most other readers and commenters here. (Any evidence to the contrary?)

Meanwhile, what do those error bars tell use about "training based on heart rate percentages." :-)

> someone doing serious training

Care to say what you mean?

[ Parent | on HN ]