Plastic bags re weight loss

Sunnyisland

I have heard alot of things about wearing one of these plastic-black bags while cycling for a long time and everyone has something different to say about them so I thought id ask on here as everyone seems to know what they are talking about. Thanks

**Timbuk2**

Why on earth would anyone wear a bin bag while cycling? Just cycle faster!

jive

Wearing a plastic bag? It'll just be water weight due to sweating more. You'll have to replenish your water anyway so it won't make any difference. Might be handy if you were a fighter going for a weigh in but as far as fat loss goes then no.

Brian?

You'll lose weight alright, in the form of water. If you're trying to make weight for a fight go ahead, otherwise it's just silly.

paulmclaughlin

jive wrote: »

Wearing a plastic bag? It'll just be water weight due to sweating more. You'll have to replenish your water anyway so it won't make any difference. Might be handy if you were a fighter going for a weigh in but as far as fat loss goes then no.

briankeating wrote: »

You'll lose weight alright, in the form of water. If you're trying to make weight for a fight go ahead, otherwise it's just silly.

What these two said. Being a fighter myself, cutting water weight is only good for a weigh where you quickly lose about a kilo or two in a day then put it straight back on after the weigh in by re-hydrating.

Owen

These were on Dragon's Den the other day, Duncan Bannatyne said the same as the posters above, but the guy pitching said yes you lose water which you'll replenish, but you also burn more calories by sweating more, and the calories stay off. Duncan didn't counter that argument, and I don't know enough to offer an opinion on whether that's true or not.

jive

Owen wrote: »

These were on Dragon's Den the other day, Duncan Bannatyne said the same as the posters above, but the guy pitching said yes you lose water which you'll replenish, but you also burn more calories by sweating more, and the calories stay off. Duncan didn't counter that argument, and I don't know enough to offer an opinion on whether that's true or not.

I don't think you burn calories as it's just homeostasis. Any calories you do burn (if any) would be negligible. People could just sit in a sauna and lose weight if that were the case!

Hanley

Owen wrote: »

These were on Dragon's Den the other day, Duncan Bannatyne said the same as the posters above, but the guy pitching said yes you lose water which you'll replenish, but you also burn more calories by sweating more, and the calories stay off. Duncan didn't counter that argument, and I don't know enough to offer an opinion on whether that's true or not.

jive wrote: »

I don't think you burn calories as it's just homeostasis. Any calories you do burn (if any) would be negligible. People could just sit in a sauna and lose weight if that were the case!

I was watching and the figure he quoted was 0.0586 (or thereabout) kcals per gram of sweat - I have no idea on the study he quoted or the veracity of it, but moving on and assuming it's true.

Dropping an additional 1 liter of water weight would lead to approximately an extra 60 kcals being burned. All things being equal.

But all things are not equal - performance will be impacted by heat and hydration levels so you'll probably end up working less hard, or for a shorter amount of time - decreasing the kcals burned.

At best - you'd see a small marginal increase, at worst - you'd end up burning less kcals. As a fat loss tool, it's stupid and doesn't work.

LaVail

Leave the plastic bags to boxers and jockeys imo

jive

Hanley wrote: »

I was watching and the figure he quoted was 0.0586 (or thereabout) kcals per gram of sweat - I have no idea on the study he quoted or the veracity of it, but moving on and assuming it's true.

At best - you'd see a small marginal increase, at worst - you'd end up burning less kcals. As a fat loss tool, it's stupid and doesn't work.

I'd love to know how he figured that one out! I don't know where the plastic bag is worn (assuming around the mid section, maybe elsewhere too?) but roughly 1 litre of sweat from a particular area is a lot of sweat, especially for the sake of 60 kcals. I'd imagine it'd hinder you if anything. Either way I think it's safe enough to conclude that it's not a particularly useful instrument for fat loss.

Owen_S

Have you not seen the price of plastic bags these days? We're in a recession nobody can afford them(not srs).

You would need to wear this doing cardio at dangerous heats for dangerous amounts of time just for it to make you lose an additional tenth of a pound of fat.

Considering this would actually more than likely tire you out and dehydrate you quickly, it might even have a negative impact on your cardio session, resulting in less overall fat loss.

Mellor

A additional liter of sweat, on top of what you'd normally sweat doing the same excercise is huge. Overall performance defo suffers, and all for only 60 cals.
60 cals takes no time to knock out.

SanoVitae

Mellor wrote: »

60 cals takes no time to knock out.

Is that how you like to burn calories?

Sunnyisland

As i am not a boxer or jockey the overall opinion is its a waste of time and your doing more harm than good.


Reason for this question is I do a spin class 4 days a week and i don't sweat that much,no matter hard i go and the above suggestion was said to me by a very imo accomplished trainer.not to do it every time but maybe twice a week.thanks for your input.

SanoVitae

realies wrote: »

I do a spin class 4 days a week and i don't sweat that much,no matter hard i go

Sweating is merely a sign that you body is overheating - it's not a sign that you are training hard or effectively.

steve9859

I think you do lose weight and not just water, but if is negligible and not worth it for the normal person. I know international lightweight rowers that trained like that during weight loss phases. But they would run for much longer at a much lower intensity than normal - hours at barely faster than a brisk walk. I don't know the science, but these were international medal winners and knew what they were doing. So there is obviously something to it (but only i suspect if you are concerned with small changes)