Weight / Fat loss

Whilst eating the same as you do during non-diet periods.

Running does seem to be a bit better for fat loss, but it's also quite catabolic once you go over a certain amount of running a day*, cycling tends to preserve muscle mass better, according to a few experience articles from people that have been lifting and cutting weight for ages**

• over 45 minutes or so...again it's gym talk and not hard and fast studies that would cos mega bucks.
  Marathon runners that are as muscly as sprinters tend to not exist, of course diet/genetic selection plays a role but marathon running does not preserve strength muscles as those are dead weight
  **if you care about that sort of thing obv, unless you are a gym bro, you may not want to keep that muscle I'm 7 kg over hill climbing cycling weight anyway, I'd need to take up running and trim myself down hard...
  

I always have to force myself to go for a run, never to get on my bike.

I bet you £100 that I'd also be a slower cyclist afterwards.

It also uses the wrong muscle groups for cycling, is much higher risk for overuse injury (especially as I already have a CV capacity that far outstrips my running muscles/tendons/ligaments/etc) and I don't particularly like doing it. Having said that I'd take the hundred off Dammit and run to work for shits and gigs.

I don't really like running either...I can't eat for hours before it cos I puke otherwise.

It beats the threadmill though...soooooo boring!

It was fun doing the 3.5 mile Belfast marathon relay leg and beating all the other slow amateurs going uphill.

But unless I really need to add cardio nope.

I bet you £100 that I'd also be a slower cyclist afterwards.

I'd take that - I reckon the aerobic and weight gains you'd make doing a much higher intensity aerobic exercise during your commute would be good for you overall, as long as you could avoid injury.

Avoiding injury is the key. I’m running again after about 4months off - Cycling just doesn’t burn enough cals for me. I’ll be running to/from work one day a week, whilst still doing my structured turbo training on the other days. I could run more, but as Hippy says it’ll affect my cycling - I’m a better cyclist than runner now, so that’s my priority.

Starting out very slow, doing run/walk intervals and building up distance sensibly is the way to go if you’ve never run before IMO

I've no way of knowing, so I'll make a blind guess that Hippy does more cycling than his commute- structured training on the turbo and on the road would be my assumption, in addition.

The question is whether the performance hit from removing cycling commute miles would be offset to a greater or lesser degree by running the commute miles.

Only one way of finding that out, I submit.

If you ran them at low speed, avoided injury, etc, I think the weight would come off.

Also, imagine him running and trying new products out. All the info. It'd be incredible.
"These fucking shoes are fucking shit"
"Don't buy this fucking water pouch"
"These running pants are the fucking business. My balls have never felt so safe"

But there would be adaptation injury probably. And time off the bike.

Also.
Triathlons.

You seem to be forgetting that I used to run and cycle (and swim). I already know it hampers my cycling, which is why, in this country, I've only ever run when I didn't have a bike.

I reckon the use of non-cycling muscles and huge amount of extra recovery needed from running to/from work, even a day a week would totally fuck my race season. I'd need a couple of years to be able to run the ~24k/day and even after adapting my cycling would be disadvantaged.

It's not about losing the commuter miles, it's about adding a load of running miles.

If I run, and I still do now and then very rarely, it takes me a week before I'm able to walk properly again. Obviously if I kept it up this would improve but the sheer amount of damage I do means my cycle training wouldn't happen or would be so reduced as to be pointless.

The shoes I wear to the gym currently are the last pair of proper running shoes I bought. Had all that gait analysis and shit, I was fairly serious but heavier than I am now and racing crits and sprint tris. The shoes must be 15 years old or more. When I got them, they were so nice I decided to run from Croydon to Ringwood, get drink and run back (~10k, or about as far as I'd ever run in one go). At Ringwood I decided they still felt great so I used the money for a drink and kept running. I made it to my office in Hawthorn, 26k away. I had physio for months after that due to ITB overuse injury.

Blouse

Cycling just doesn’t burn enough cals for me

Out of interest, how many do you reckon you can burn per hour while running?

Now I've got decent cycling fitness, I find I can burn not far off 1,000 an hour on the bike if I'm pushing hard for two hours or doing 2 x 20 at threshold on the turbo.

The treadmill told me I was able to do similar when I was running but there was no way I could run at that intensity for two hours without wrecking my joints.

I think the larger difference is at lower intensity- when I switched from cycling my commute to running it I was taking conference calls during my run, which should give you an idea of intensity, yet the weight absolutely fell off me.

Nice try.

1000 cal/hour? What are you using to measure calorie use?

https://www.lfgss.com/comments/12901124/

So you were already 78kg when you started running to work. I'm 95kg.
Put 17kg in a backpack and run 12k and let me know how you feel.

Right, I'm back in here.

I lost a whole bunch a couple of years ago, from 105 down to 75 or so. I actually think that since doing PBP it has been creeping back up, and then work stress, a couple of periods off bike have put a bunch back on. Been in Amsterdam for three months and my cycling suffering. Used to have a 17km each way at a reasonable pace and now have a 5km Brompton ride, all of which has meant I am 92 today. Ho hum.

Complicated Algorithms

Definitely involving some imaginary numbers. #mathsburn

I did 3 ultra marathons last year at 112kg, you put 17kg in a backpack and get on with it ya lazy git. :)

I did >10,000k of racing with a system weight of ~120kg. Lift your game. Running... pfft.