Depends on the type of interval you are doing. What is the goal of the
interval?
"Andras" <[Only registered and activated users can see links. ]> wrote in message
news:MGLoc.7087$[Only registered and activated users can see links. ].prodigy .com...
> hi,
>
> when I'm doing my interval runs, sometimes my heartrate goes near my max
hr.
> is that ok, or should i keep it lower?
>
> thanks
> a
>
>