Quote:
Originally Posted by activeStick
Is running bad for your knees and feet due to the impact? No doubt it's great exercise for your heart, but would biking be better?
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About six years ago I got back into cycle commuting after a decade off. I had a couple false starts from overdoing it, but now I'm riding as well as I've ever ridden, and putting in 100-120 km a week.
I recently tried getting back into running about after about a decade off, and it's been much tougher. As a guy in his late 40s who's 5-10 lbs overweight, running is tough on the joints. The difference between how running felt 10-15 years ago and how it feels today is dramatic. I've had to take an extremely conservative training regime, and I'm still sore all the time - mainly knees and hips. And I'm not even getting a good a cardio workout (not nearly as good as cycling) because my muscles and joints give out before my wind does.
In my entirely subjective opinion, running relies much more on bio-mechanics that are affected by age and body-type than cycling does. You may be able to ease into a running regime injury-free. But I'd wager you'll have an easier time with cycling.