Cardio: Stationary bike compared to Treadmill?

[MaGilicuti]

They must be different I was just wondering how much so. 30 minutes on the bike compared to 30 minutes running. Running kills me because I get shin splints like crazy. I would really like to build endurance though.

 

[diamonddiceclay]

bike is easier on the joints-treadmill works more of the body-it's a tradeoff