Too many people get this whole โZone 2โ thing wrong. Very wrong
I thought we were beating up the phrase too much many years ago
Now, every wannabe health coach is screaming it, too.
And most of them have absolutely no clue what theyโre talking about.
Even many docs selling supplements on IG have no idea.
Literallyโฆ none.
Low heart rate (HR) training is important.
Just like high HR training is, too.
Should we be doing more low-HR training than high-HR training?
Yes.
A lot more low HR training.
But itโs probably at a lower HR than youโre doing now.
Much lower.
People think their LT1 or AeT is a magical 70-75% of their max HR.
(AeT= Aerobic Threshold. LT1= first inflection of lactate)
It's not for many.
First, most donโt know their true max HR.
Calculated max HRs can be way off.
Running max HR doesn't = cycling max HR either.
Second, if youโre not fit, 70% of your max HR is not your AeT.
HR zones are determined by the physiological changes that occur during them and, thus, by the adaptations we seek to encourage.
We determine our HR zones using metrics that reflect these physiological changes that vary as our effort increases.
For those who are starting out and want to be healthy...
Youโll probably have to walk or hike to be in Zones 1 &2โฆ Either zone is fineโฆ donโt sweat it.
Itโll take a lot of training to stay under your AeT and be able to run.
Cycling will be a lot easier to stay under your AeT.
And donโt try to hit your AeT.
Thatโs not the goal of all this!
The goal of low HR training is to stay below your AeTโฆ
Otherwise, your physiology changes
Your AeT is a ceilingโฆ not a goal.
For those who want to dial things inโฆ youโll need to have your lactate measured.
Your lactate levels during a run or ride will tell you whatโs happening from a physiological perspective within your cells.
That will determine your HR zonesโฆ
Not just a percentage of a made up maxHR.
Lookโฆ Iโm not a professional coachโฆ chat with them if youโre that serious ;-)