Can't get my HR high enough
tenohfive
Posts: 152
I've recently taken up cycling as a less impactive form of cross training (and because I enjoy it, which is a bonus) but I'm struggling to get my HR up. I will mention now I'm using a watch with an optical HRM rather than a strap based one but I've got a fair feel for how hard I'm working and believe the numbers it's giving me.
On a recent hill reps session (6% or so hill) I was sub 170bpm at all points (and I was pushing my legs as hard as I could, particularly at the end.) I only felt properly, raspy, knackered out of breath on the last minute of the last rep.
On another occasion I deliberately hammered down a flat stretch aiming for as high a speed as I could manage - 90 seconds of max effort. 160bpm.
For a comparison when I'm pushing hard running - either sprints or hill reps - I'll regularly hit 180bpm+.
I'm thinking that because I've not been cycling long and using the same muscles my heart is stronger than my legs (or I need to man up and push harder somehow.) Is there anything I can do to even that balance, other than being patient and spending plenty of time in the saddle?
On a recent hill reps session (6% or so hill) I was sub 170bpm at all points (and I was pushing my legs as hard as I could, particularly at the end.) I only felt properly, raspy, knackered out of breath on the last minute of the last rep.
On another occasion I deliberately hammered down a flat stretch aiming for as high a speed as I could manage - 90 seconds of max effort. 160bpm.
For a comparison when I'm pushing hard running - either sprints or hill reps - I'll regularly hit 180bpm+.
I'm thinking that because I've not been cycling long and using the same muscles my heart is stronger than my legs (or I need to man up and push harder somehow.) Is there anything I can do to even that balance, other than being patient and spending plenty of time in the saddle?
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Either way, I don't really understand what your concern is.
So work harder then? Sorry, I still dont understand what the issue is. Try a few rides without the HRM and ride on feel.
It could be that you're not strong enough to push flat out ? Maybe try dropping a gear and spinning faster ?
Running will get you higher BPM as there are more muscles you're utilising.
Max HR doesn't really mean anything... if 170 is what you can reach going up a 10% slope, then that's your max HR... if you don't like it, then ditch the HR monitor
This - your running MHR will be higher than your cycling MHR, so it's not too much to worry about.
If you want to know your cycling MHR there are a few protocols online (Google it), but it is not pleasant. To be honest flat out hill reps should get you there provided the hill is not really short.
Although does suggest you're possibly not working hard enough, since flat out hill reps should definitely induce that result...
Try riding up a hill with someone else who's much faster than you, try and hold their wheel for as long as possible - I can always go harder then...
If you read his post properly, he gives example running and cycling HRs and is asking why his cycling HR is lower than his running HR... Not why he can't hit 220-age...
As Bob says you probably need to ascertain how hard you are actually going up a hill as hill reps should definitely have you blowing out your backside!
To give an example I have a 1km hill at 6% I use for reps. If I am doing cadence or strength work I use the following respectively, both of which get me to max heart rate quite easily:
- Cadence; 36 x 15 gear at 95+ rpm for full climb
- Strength; 30-45 second sprint, hands on drops in 52 x 17 (all out effort)
I am not suggesting you try this but will give an indication that spinning up in 34 x 32 will not induce max heart rate, you need to be going hard (again, not to suggest that is what you are doing!).
Tried that too, turned around and chased a random during my last rep who had a bit of a head start. That was the closest I came to being out of breath but still wasn't as knackered as I'd have liked.
Sorry but I don't understand the latter paragraphs - I need to wrap my head around gearing and teeth numbers etc, but right now I think in terms of lowest gear, highest gear, stuff in the middle gears. I agree that I don't seem to be getting into anaerobic capacity yet and that is ultimately what I want
I don't have the strength to push the bigger gears during hill reps, absolutely. What feels like the 'right' gear is a good few notches down but not the lowest gear either.
Will I end up working harder if I drop a cog and spin like crazy (and any technique tips on that front?) or just try and grind my existing slightly higher gear quickly?
Or am I better off looking at some sort of exercises that'll build my leg strength sooner?
Sorry, that's nonsense. Leg strength is not what allows you to hit VO2 max, by definition. Someone could walk in off the street having never exercised before, jump on an exercise bike and hit their VO2 max if needs be, so not having enough 'strength' is a complete red herring.
The right gearing is important.
I'm 59 now and my MHR cycling is 168, which is a bit higher than the 220-age thing.
AFAIK the only reason for needing to know MHR is to use it to establish training zones based on it. Is that what you're wanting to do?
It won't be the issue because the two simply do not correlate. Although I agree, gearing is important, it's not the issue here though - it's perfectly possible to hit MHR while over-geared.
If it's a strength issue, fine. I'm open to solutions.
If it's a gearing issue, fine. I'm open to solutions.
I just want to finish a session feeling utterly b*****ksed, regardless of the numbers. It's not currently happening and something is holding me back - and I don't think it's me; I'm used to pushing myself.
Keep cycling.
It'll happen.
At a really inconvenient time. Like when you're showing off to mates.
You said you have recently taken up cycling. It's not a strength issue, it's not a gearing issue - it's a fitness issue. Take a bit of time to get some aerobic fitness and some miles in the bank before you go out smashing yourself. And ditch the HRM for now, it won't be telling you anything useful.
As a runner too, I agree with some of the comments above that running will raise your HR higher. As an example my MHR on the bike is 185, which I rarely get near on any length of interval, or even races.
My first 5k race I averaged 185 for 18 minutes. I would blow up in seconds/minutes if I got near that on the bike.
I know its not a fitness issue, as the PM doesnt lie.
Next time get out of the saddle and sprint flat out up it, without looking at the HR, then report back.
If you're not out of breath but can't spin your legs any faster then you just want a harder gear, surely.....
The best way is to do a test in a lab
Failing that you can do a self test either on a turbo or on a road. If its on a road then it needs to be without traffic lights or anything to slow you down. It needs to be flat or slightly uphill, best not to have any downhill.
This test is similar to an FTP test, start with a warm up then fo a 5 minute flat out as fast as you can hold for 5 mins.
Then recover for 15 minutes. Then do 20 mins as fast as you can go like in a time trial, hit the lap button at the start, dont jump too hard. At 20 minutes the average should be close to your LTHR.
Or you could buy Jow Friels Training with a HRM and he goes into how to achieve your LTHR in detail
And Imposter/Bob, I am many things - unfit isn't one of them. As others have pointed out - if I were unfit I'd be breathing out my derriere sooner. I'm a keen runner and I'm fit. But something is holding me back right now.
I go up a gear, get out of the saddle, start peddling like mad. Fine. Switch it up a gear. Less fine but still moving. Continue up until one below the point that I'm going to fall off the bike because I'm not actually moving, that my legs just can't spin...chest still feels okay. If anything I feel like I'm working harder spinning a higher cadence in a lower gear, which is something I might consider doing in future.
I don't want an argument about it though, if the idea that different parts of the body are actually separate (and one can be trained to a higher level than others) is utterly ridiculous, then more fool me. I thought there might be a few others who'd experienced similar problems before though coming into cycling with a good CV base. But if cycling naturally means a less intensive session then that's fine; I can leave the LT work for when running and use cycling for good aerobic sessions. Or maybe it'll come with conditioning and I'll be able to push harder.
That's got to be the quote of the thread
I never said you were unfit - but it's quite likely that you're not 'cycling-fit' - there's a big difference.
why are you doing this?
as you fatigue you should be going to an easier gear, grinding to a halt because the gear is too big isnt the idea at all.
keep it in a gear you can just turn over, at a PE of say 9/10, say at a cadence of 80 or 90 rpm on a hill and keep going and at this cadence using your gears, eventually you ll throw up lol1
I picked a watch with an optical HRM after side by side comparisons with a normal chest strap one - it was pretty accurate (DC Rainmaker does some painstaking reviews.) They aren't infallible of course.
But that's by the by, I only mention it as a side note. In this case the HRM is just backing up what I already know (that my lungs/chest aren't working that hard.)
I'm not grinding to a halt currently I was saying that for illustration - I'm keeping it in a gear that I can keep spinning steadily; if I go higher I slowly stop. I'm saying that I can't sensibly go higher and keep moving. I don't know what cadence I'm doing (no sensor) and the gradient I'm up against does change - and I change accordingly. Where it steepens I drop down to keep a steady cadence, where it lessens I change up. I'm not getting to that point of exhaustion - my legs are screaming at me, I'm stomping on the pedals, throwing my bodyweight about to keep moving...but I can still hold a conversation.
I know this sounds strange - it does to me to. Especially since I can throw myself at basically the same hill a few hundred yards away and run up and down it until I fall over with exhaustion.
As people have said to you a number of times already - running fitness and cycling fitness are not comparable.
I'm sure you are fit but in any case lack of cycling fitness shouldn't be an impediment to reaching high HRs (sustaining those HRs and being fast at those HRs on the other hand is very different). I know from personal experience that if anything when I have low fitness my HR tends to skyrocket (as I'm trying to cycle like fit me, my brain makes checks my fitness can't cash). Had many @rse breathing experiences this way.
So your MHR maybe higher and one day, when you least expect it, you will do an effort that will find it. Keep cycling and keep doing hill reps for varying lengths of time.
It'll come.
When I've not done top end work for a while the legs pack in before the HR suggests they should.
It doesn't take long to get there though.
Do the Carmichael 2x8 min test, the result is what it is. Work with it for a month then retest.
Strava - Alex Taylor (sportstest.co.uk)
ABCC Cycling Coach
I've also done a max hr test on a hill (http://www.bikeradar.com/gear/article/h ... sts-28838/ & https://www.cycling-inform.com/how-to-t ... heart-rate) and the max I hit was 182 although even on my hardest rides the maximum is around 175.