After advice from my coach, I increased my easy run pace to between 6:30 and 6:50 per mile, previously I had been doing more like 7:30 to 7:50 per mile on easy days. Nothing else in my training or daily life has changed however my heart rate average for the easy days has stayed the same despite the huge pace increase. What could be other reasons for this? I've questioned whether my form is more efficient at higher paces and so my heart can work at the same rate as at slower paces?
You got better at running. Congrats!
How long has it been since you've measured your old pace? I would remeasure your HR at the old and new pace now and see if they're different. If they're the same, that is unusual.
Are you using a watch to measure HR or a chest strap? It's possible your watch isn't very accurate.
I use a chest strap so accuracy isn't the issue
Why I'm asking is because this was an overnight thing, as in the first easy run i did at the quicker pace i noticed my heart rate to be the same, and this has continued.
7:30 is not really too slow to suffer from terrible efficiency. That isn't why.
Likely you just got a bit fitter
What I mean when i say changed overnight is that on the tuesday i did 6 miles at 7:47/mile with hr at 152bpm and on the wednesday i did 6 miles at 6:34/mile with the exact same heart rate. The example ive given are "overnight" but before the change all my easy runs were around this heart rate and now after the change my easy runs are still at the same heart rate, just quicker.
I have the same thing, no clue why
It's stupid advice then, why would you run faster when your heart rate is literally the same. Just run slower and recover your leg muscles its an easy paced run
I have had the exact same experience. measuring hr with strap and it's same at 6:50-7:00 pace as at 7:40 pace. Not sure why. My thought is that at a faster pace, i recruit more of my fascial chain/tendon elasticity and (about) just as much oxygen-consuming muscles, so HR stays same but I run faster..
"It never gets easier, you just go faster".
Eh, keep monitoring. It might go up in the future. It might not
The more I learn about training and exercise physiology, the more I realize there’s a lot we just don’t know.
Ambient temperature or humidity different, gear is different, medication (e.g.beta blocker), sickness or medical issues, hydration, overreaching/overtraining, etc.
The factors influencing Hr is quite long...
What are your race prs? Running 6.5/mile is quite fast in easy jogs, thats why I am wondering.
Try changing battery in your HR band, just to test it.