Joe Friels Base miles...

mclarent

Just checked this out of interest. Last time I did a couple of hours on the turbo was end of December. 1st hour, average power 175 watts, 120bpm, 2nd hour 173 watts, 122bpm.

That's an L2 ride for me. Unfortunately I don't have the data for a tempo ride.

BTW, 2 hours at tempo on the turbo is pretty tough(!)

Alex_Simmons/RST

LJAR wrote:

amaferanga wrote:

What does this coupling between HR and power actually tell you anyway? What do you do differently if you believe they're no longer coupled?

"Coupling" refers to how your heart rate changes for a fixed power output over a long period of time.

Eg 2 hours at 200 watts

First hour HR = 150

Second Hour HR = 165

this indicates a slight "decoupling" (10%) as your HR for the same power was higher in the 2nd hour.

If you have low decoupling or no decoupling in a long tempo ride this indicates you have built a good aerobic base.

If you have a power meter, ditch the HR strap and stop looking for things in the HR tea leaves.

Old Tuggo

Alex_Simmons/RST wrote:

LJAR wrote:

amaferanga wrote:

What does this coupling between HR and power actually tell you anyway? What do you do differently if you believe they're no longer coupled?

"Coupling" refers to how your heart rate changes for a fixed power output over a long period of time.

Eg 2 hours at 200 watts

First hour HR = 150

Second Hour HR = 165

this indicates a slight "decoupling" (10%) as your HR for the same power was higher in the 2nd hour.

If you have low decoupling or no decoupling in a long tempo ride this indicates you have built a good aerobic base.

If you have a power meter, ditch the HR strap and stop looking for things in the HR tea leaves.

Isn't a HRM usefull in knowing how hard you are working to achieve a specific power?

P_Tucker

Old Tuggo wrote:

Isn't a HRM usefull in knowing how hard you are working to achieve a specific power?

Nope. You are either achieving a specific power or you aren't.

Alex_Simmons/RST

Old Tuggo wrote:

Isn't a HRM usefull in knowing how hard you are working to achieve a specific power?

A HRM is useful for knowing how fast your heart is beating. It is an indicator of cardiac strain. That may or may not have much to do with how hard you are working.