Swimming VS Running

I'm sorry if my last post seemed sarcastic -- this is still kind of a broad subject but I'll take a stab at it. To me, the major difference between swimming and running as a training method (aside from the obvious ones and fact that I like to swim and I don't like to run) is the risk of injuries. I used to run, but stopped because I was injured too often (knee pain, ankle pain, etc) and they were injuries that kept me from training at all. I sometimes get shoulder pain from swimming, but I can still swim when my shoulder is sore, even if I have to ease up, avoid certain strokes or just kick for a workout. You'll see constant arguments over whether swimming or running burns more calories or is more aerobically effective. I've seen numbers both ways, but I doubt that the difference, if there is one, is really significant.

I'm sorry if my last post seemed sarcastic -- this is still kind of a broad subject but I'll take a stab at it. To me, the major difference between swimming and running as a training method (aside from the obvious ones and fact that I like to swim and I don't like to run) is the risk of injuries. I used to run, but stopped because I was injured too often (knee pain, ankle pain, etc) and they were injuries that kept me from training at all. I sometimes get shoulder pain from swimming, but I can still swim when my shoulder is sore, even if I have to ease up, avoid certain strokes or just kick for a workout. You'll see constant arguments over whether swimming or running burns more calories or is more aerobically effective. I've seen numbers both ways, but I doubt that the difference, if there is one, is really significant.