If you're not used to running, starting off doing it every day is hard on you.
It's best to build yourself up by doing it every other day. For example, start off running 1 minute, then walking 4 for 45 minutes total. Slowly increase your running time. Maybe during the next week, run 1 min 30 sec, walk 3 min 30 sec. etc..
Eventually you build yourself up so you can run 5, walk 2.. or run 10 and walk 3, getting closer to working you way up to running for a full 45 minutes.
Doing it that way lets your body adjust much better... muscles, joints, and the circulatory/cardiovascular systems. Once your lungs/heart get used to it, it's very easy.
I have a book on it if you wanna borrow it.
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As for whether or not you get the same effects from biking... it's all cardio, so I would assume so at least in terms of getting a decent workout. With running it seems you're putting more of your body into it - arms, torso, etc - whereas biking, it's all legs.
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Last edited by Stompy; 01-20-2005 at 11:43 AM..
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