
Originally Posted by
twa2w
Unfortunately the research backs your in-laws :-). There was a research paper done on this a few (15-20) years ago. While swimming is a great exercise for all the reason mentioned above, it just doesn't burn as many calories as equivelant exercise done outside a pool(given the same calorie burn during the exercise period) I believe the gist of the research was - When you go for a run your body heats up and when you quit running there is an afterburn effect. When you swim in a pool your body does not heat up as much becasue the water cools it down so you do not get the same afterburn effect. Having said that, you are still burning calories from the exercise itself and if you swam in really cold water your body may have to work harder to maintain its temperature.
IIRC the other part of the equation is swimming is not weight bearing so less hard on body. This translated in to a few less calories burned for repair of tissue that occurs with weight bearing exercise.
That being said Swimming is still a great exercise and if you do enough of it (or intensly enough)you can burn plenty of calories.
Oddly enough - many bikers -including pros- tend to have weak bones - not weight bearing enough - although I have never heard this about swimmers.Cheers j
As a former competitive swimmer since I was a little kid, I can say swimmers who swim in COLD water, gain an extra layer of fat as insulation. For someone like me, with numerous joint, spinal & connective tissue injuries, there are few other options that I enjoy as much as swimming. Even though I love to hike & walk about (weight bearing), I do sometimes hurt myself if I slip on uneven surfaces. Swimming is safer for me & I enjoy it. I lift weights too, but less weight & more reps than before my injuries/surgeries, so as to not hurt myself (shoulders & spine mostly)
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