Advice for spinning

[Do_headquarters]

Hello I'm Do, i'm 21 years old. I have this problem, in my school there is a bunch of spinning bikes, but there's not an instructor. Well I rode them this week (M,W and F) one hour per day, I felt great but in the morning of Friday I felt a little pain on my right leg, I'm not pretty sure what I did wrong in spinning. I would like to know if there is a thread for beginners in spinning that explains something about what not to do.

Thanks a lot!!

[Zen]

Here's a tutorial-
http://davedraper.com/blog/2007/01/17/spin-bike-tutorial-spinning-an-indoor-cycle/

[Do_headquarters]

Here's a tutorial-
http://davedraper.com/blog/2007/01/17/spin-bike-tutorial-spinning-an-indoor-cycle/
Thanks!
I've seen some people who rise while they're doing spinning. DO you know any thread that explains that kind of movements??

Thanks!