'On yer bike' says Boris...

Junglist said:
I want to work out what I'm doing wrong! On my 2:46 ride on the weekend I only burned 1195 active calories /1500 total calories! It wasn't a particulary intense cycle but I don't know how much harder I'd have to push to burn that many in almost half the time!
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The gadget being used to estimate Calories will make a difference, power meters are supposedly quite accurate at this, while training by power has been a revelation compared to using heart rate for me over the last ~2.5 years.

Not to mention things like weight, gradient and wind direction etc.
 
Psycho Sonny said:
What's that a 15% decrease in calorie burn?

You would need to increase your speed by 15% or so. But remember it's actually acceleration not speed need a physics expert for the proper calculations.

Also during that time have you changed bikes, what you wear, etc.

As in you started on a crap bike now ride a much more efficient bike for transfer of power. So less power is being lost and you have gotten more effecient at riding a bike so lose less energy through ineffeciencies.
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But that's pretty much to speed on a hours ride for new me, that's kind of my point.

I don't think it is just acceleration though. You need to keep putting power in to maintain speed. More effort when you're heavier.

Yes, definitely I've reduced rolling resistance and wind resistance which has helped make me quicker.

For me, the bottom line is when I was bigger, I burnt more an hour. Slower bike will just mean slower speed for the energy I'm putting in, not a different amount of energy. I'll leave it there and move on from this thread :)
 
Fat burn is only one outcome though. If you want to be fit you need to understand your limits based on the sport you are training in. So for cycling it’s about power and your heart rate, understanding what your limits are and then training around then.

I can assure categorically that this method of training shreds fat (alongside a normal diet, I don’t do anything special just generally balanced). In fact I could only shift the crap around my waist by doing this.
 
More pathetic weakness from our big business government, the sugar tax has been shown to work yet Boris won’t extend it in case he annoys some rich food company who might loose 10p from sales of their crappy food.
 
Dis86 said:
You're doing the same amount of work, i.e. the same mass is being moved the same distance. There are some losses of efficiency when running because you tend to have more vertical movement vs walking and as you say there's more heat which may require increased heart rate although that's of limited effect. That doesn't decrease efficiency in the muscles though.
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I hadn't mentioned mass&distance - false friends I thought -
covering the distance on a bicycle, would use the same energy by such a definition of work,
what the ratio of energy used for both forward motion & preserving potential energy is, at different paces, is less intuitive though - I don't know
(Those new/banned trainers definitely show the importance of energy storage+recovery though).


On the other hand this repeated idea in the thread of increasing exercise intensity over a shorter time period facilitating weight loss - that's flawed, with the different body energy resources.


Boris's £50 would be closer to a new pair of running shoes .
 
jpaul said:
I hadn't mentioned mass&distance - false friends I thought -
covering the distance on a bicycle, would use the same energy by such a definition of work,
what the ratio of energy used for both forward motion & preserving potential energy is, at different paces, is less intuitive though - I don't know
(Those new/banned trainers definitely show the importance of energy storage+recovery though).


On the other hand this repeated idea in the thread of increasing exercise intensity over a shorter time period facilitating weight loss - that's flawed, with the different body energy resources.


Boris's £50 would be closer to a new pair of running shoes .
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Bicycle is very different as you're using a mechanical device which increases the efficiency of the process. Mass and distance are good friends!
 
If everyone starts biking to work, it means they will all have to shower when they get there. That is a lot more energy (and water) usage :D
 
Psycho Sonny said:
It takes the same amount of calories to walk a mile as it does to run a mile.
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There is generally a 10-30% calorie variance of running a mile versus walking a mile dependent on the individual.

Shameless quote steal:

“Your body stores only a limited amount of ATP (enough for only a few seconds of activity), so it needs to replenish that supply, and it does so by metabolizing your stored fuels (glycogen and fat). The process of making useable energy (ATP) from stored fuel (glycogen and fat) is dependent on how much you need and how quickly you need it.”

If an activity is more intense, it will need more ATP, and seeing as walking is less intense than running, it requires less ATP production, and hence less energy to initiate the movement.
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A study...you can find many more that come to similar results.

https://pubmed.ncbi.nlm.nih.gov/23190592/
 
Junglist said:
I want to work out what I'm doing wrong! On my 2:46 ride on the weekend I only burned 1195 active calories /1500 total calories! It wasn't a particulary intense cycle but I don't know how much harder I'd have to push to burn that many in almost half the time!
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for best information it’s worth having a power meter on the bike and HRM with all your correct stats entered but then you’re entering a whole new area of cycling when it comes to gadgets and money spent.

the one thing that’s kept me going on my little health mission is the garmin index scales that measure not just weight but bmi, body fat percentage and muscle mass etc..

for me being a bit of a stats nerd it’s what’s really kept me at it

although garmin are a bit of a pain at the moment with their app still not working fully.. there are other names about
 
VincentHanna said:
Predictably the voucher site has gone down.
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Lol, this Govt just can't catch a break can they :D

https://www.bbc.co.uk/news/uk-53576008

A website offering £50 bike repair vouchers in England crashed after the government scheme launched on Tuesday.

An initial 50,000 "Fix Your Bike" vouchers were due to be made available online at 23:45 BST on a first-come, first-served basis.

However, many people complained they received an error message when they tried to access the website.

It began working again just before 04:00 BST but by 06:30 BST the page said it had been "temporarily paused".
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And now it's just a short paragraph on the site saying no vouchers are available right now, with future vouchers being released in batches to no overwhelm the shops.

:lol:
 
I guess it shows how popular it’s been.

might just be people fixing up their old bikes to sell on eBay because of the bike shortage :D
 
labbby said:
for best information it’s worth having a power meter on the bike and HRM with all your correct stats entered but then you’re entering a whole new area of cycling when it comes to gadgets and money spent.

the one thing that’s kept me going on my little health mission is the garmin index scales that measure not just weight but bmi, body fat percentage and muscle mass etc..

for me being a bit of a stats nerd it’s what’s really kept me at it

although garmin are a bit of a pain at the moment with their app still not working fully.. there are other names about
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I'd like a power meter but don't think I'd benefit from it on a fixed gear. Plus I expect a decent one would probably cost more than I paid for my bike haha!

I am tempted to grab a little bike computer though. I used to have a rubbish Speedo years ago that used a magnet on the wheel but even that I found made me push that little bit harder. I've been using Strava on my phone and watch but not sure if it's actually worth the monthly price
 
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Junglist said:
I'd like a power meter but don't think I'd benefit from it on a fixed gear. Plus I expect a decent one would probably cost more than I paid for my bike haha!

I am tempted to grab a little bike computer though. I used to have a rubbish Speedo years ago that used a magnet on the wheel but even that I found made me push that little bit harder. I've been using Strava on my phone and watch but not sure if it's actually worth the monthly price[/
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you could always get a stages crank arm power meter then switch it between bikes if you have more than one.. make sure it’s compatable with both cranks though. I don’t know much about fixed gears to be honest.

with strava I don’t think you need to pay monthly if you are just comparing your own stats, I believe it just removes you from the leaderboards. If I’m wrong could someone please correct me.. I got a tad confused with their pricing model :D
 
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