There's no point you mentioning segment lengths of 14.5km to determine your max HR. I don't think your understanding the type of effort you need to do to obtain your true max.
You'll get your max reading from a sprint effort, you'll not be able to sprint for 14.5km's.
Have a look at this link below. Test 1 will be your best bet of obtaining you true max HR. Please forget about 15km efforts for max HR purposes.
https://www.cycling-inform.com/how-to-test-for-your-cycling-max-heart-rate
thanks for that .... I will have a close look at this
on my ride today, I gave it my best for the 14.5km ....
it's a long stretch between Swaversy and Milton road Cambridge on the guided busway (long stretches on a good cycle path) .... a few road intersections where the busway crosses busy roads, but all in all a good course to sprint and do TT .... The busway is between Milton rd and St ives and is 12 miles long (I worked in Swavesy, which is 3 miles away from St Ives)
on the last small segment, called the
CRC sprint of 0,8km .... my average speed was 36.3km/hr and my max speed was 40.7km/hr .... average heart beat was 168 ...I sprinted as fast as I could ... thats where I got the 172 heartbeat ...
I had my Garmin set to use the Virtual Partner as a test on this feature as I have only had my Garmin for a week and am trying to learn how to use it. So, on this stretch, I was already pretty knackered and sprinted as fast as I could. Not sure if the hill climbing test will get my heart pumping faster than this
So, saying this, I am still trying to figure all this out ....
my age is 56, so, if we use the 220 minus the age, my max heartbeat rate works out to 164
so, now, I pushed my h/r to 172 .... so, 220-172=48 .... means that someone 48 years old should have a max h/r of 172
does this now mean that my heart is as good as reasonably fit 48 year old (8 years younger than me)?
looking at the formula of 220 minus age, the younger that you are, the higher you can push your heart to pump faster? ....