Saint said:"Skunk" <[email hidden]> wrote in message
news:[email hidden]...
Quoted message said:I have been cycling for about two years after previously doing very
little exercise in adult life.
I have lost just over 2 stone.
I don't diet but I try to eat sensibly - I have mainly cut down on
sugar, butter , beer and fatty foods.
My weight started to go up again recently and I started doing more
uphills and I have lost a stone and a half since easter.
I am not a big build and although I hardly drink beer now, my gut was
built over many years drinking bitter on a daily basis, and my gut has
absolutely refused to go, though it has gone down a lot. I have just
started sit ups but that doesn't seem to be doing much either. I traded
beer for white wine, though after what an earlier poster said, I might
trade down to red wine - the thought isn't doing much for me though.
I have never thought about a hrm. Would it be worth it. I cycle about
12 hours a commuting to work via roundabout routes and try to do a 50
mile run every weekend.
--
Skunk
Don't have exactly the same problem as you (i.e. 'gut'😉 but seem to have
'plateaued' in terms of weight loss. Got an HRM with an HR Max of 185 and a
RHR of 63 and am perenially confused as to whether my training zones should
be at 50 - 60% or 60 - 70% of max hr and also whether I should use the Heart
Rate Reserve (Karvonen) method or the 220 - age formula.
Each give different results and 'target zones' within which to work:
Karvonen (185 HR Max)
50 - 60% = 123 - 134 bpm
60 - 70% = 135 - 146 bpm
Age Related (220 - age = 182 HR Max)
50 - 60% = 91 - 109 bpm
60 - 70% = 109 - 127 bpm
I suspect that the age related formula, even on the lower % zone for fat
burning/longer duration, is flawed as raising my RHR by less than 30 bpm is
not really gonna do the job - I can do that walking upstairs.
If I could pinpoint the more accurate way, with some clear definition over
what exactly the correct 'weight loss' zone is, then I may have more success
with the HRM.
On the other hand maybe I'm just a classic endomorph! ;-)
S
This book I have (that I mentioned in the earlier post) gives about 4
different ways to determine your max hr - one of which is the age-based
version, but also by doing specific rides (indoor or out) to determine
it, or extrapolating by judging what is roughly 85% of max, or by the
max you've ever seen whilst out riding, and also a formula based on age
but also weight, etc.
It also sets out all the zones as percentages of your max hr, in bands
of 10% starting at 50%, and the sort they are (healthy heart, aerobic,
threshold, anerobic, all out max etc etc) and some info on the apparent
differences in fat vs glycogen? burning at each zone, but also balances
that with the fact that working in higher zones burns less % fat, but
more of it cos the total calories burned is that much higher.
But the main thing is that it does explain why you don't get as much
benefit out of training hard up at your anaerobic threshold as you would
if you did a lot of that time in the aerobic intead.
Really do recommend it if you're thinking of getting a HRM or doing some
semi-serious training and want some background on it, but if anyone
wants the formula stuff, I'll dig it out and post it on request.
--
Velvet