Whatever you got to do to get that heart rate going, do it! Even if it's just to maintain where you're at during nursing school; 30 minutes of brisk walking, workout DVDs, YouTube videos, etc. I gained about 17 lbs. in nursing school and by the time I got out, I felt like a fat lump 'o' lard. Now that I'm working as a per diem RN, I have lots of time to fit in workouts on MY time. I've lost 22 lbs. this year so far! I feel healthier, I've toned up so much, lost inches everywhere, my old clothes fit loose and I feel so much better about my body! I looked at pictures we took at 4th semester clinicals and can't believe how chubby I had become!
I cannot rave enough about Jamie Eason's LiveFit program. It was a great starter workout program that incorporates weight lifting, plyometrics and HIIT cardio workouts. It's FREE on bodybuilding.com's website. I will say that some of the workouts do take an hour sometimes longer so looking back, I don't think I would've been as consistent with this program then as I am now.
Takeaway message is just to get some exercise, most days of the week!