My rabbi once told me that it would be avodah, not melacha, so technically I could if I wanted (obviously not according to all opinions, as Tzvi has shown), but it's not really in the spirit of the day, and you won't find anyone who is shomer shabbos really doing that. I wasn't sure what he meant by "not in the spirit of the day" until I started keeping Shabbat fully a few times, and then I understood what it was all about. There wasn't any need or desire to do anything except fully immerse in shabbat, learning resting eating, etc. I agreed strongly with what CHaim said to this question in ask JTF, there's a whole 6 other days to do that kind of stuff (exercise etc).
Are you living at school, do families ever host you or you have somewhere to go for Shabbat?