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yes nunheadbelle a mile is a mile, but not in terms of a 'swimming mile' and a 'running mile'. A swum mile = the equvialnt of 5 miles run (thats just an example) That's what I want to know from someone who swims/runs regularly (a triathlete would be good! if there are any knocking about ED?)

Well, MW, you can work it out from the site that d_c posted.


Let's say you weigh 130 lbs:


Run for an hour at 6mph (fairly middling jogger pace), and according to these data tables you'd burn up 6 miles/590 calories. This works out at about 98 calories per mile.


Conversely a medium breast stroke is about 1 mph (top speed is around 4mph), and you'd burn up 1 mile & 590 calories in an hour. This is about 590 calories per mile.


Hence you'd need to do 590/98= 6 miles running for every one mile swimming breast stroke to burn up equivalent energy levels.


If we looked at front crawl we'd get a different answer. It's about 20% faster on average and easier on energy usage, so in an hour you'd burn up 1.2miles & 472 calories. This is 394 calories per mile.


Hence you'd need to do 394/98 = 4 miles running for every mile swimming a leisurely front crawl to burn up equivalent energy levels.


The ratios stay pretty much the same regardless of weight.

You can't work it out on time alone as it's all dependent upon exertion, surely... Most people won't swim a mile or swim for 30 mins at the same exertion level at which they would run a mile or run for 30 mins. If you have a heart rate monitor, run for half an hour at say 80% WHR and then do the same in the pool and see how far you get in both cases, and you should be able to work it out from there. I'm not sure there's a catch-all rule, and if there is I imagine it'd be VERY vague and unreliable...

All I know is that I ran 9 miles yesterday and it took 1 hour and 15 minutes. I was tired but not falling over tired. I swam for 1 mile in the pool the weekend before and DID nearly fall over afterwards.

Yes! Back to the pool. And the water is very cold in the pool I go to so that should burn off a few more vino calories....(she sighs)

:-$

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