Logging roller skating?

SFalconStorm

Okay, I hate normal exercise...walking, running, etc. I've been looking for fun alternatives because I really need to exercise. I do a lot of Just Dance and I started roller skating on Wednesdays at the end of December. I adore roller skating. It's great exercise and is low impact. (at my size, I need low impact)

My main issue is logging the roller skating. I take a one hour class on Wednesdays, so I'm not skating for the whole hour, of course. Right now, I'm counting it at a third of the time, so twenty minutes. Then I do free skate after the lesson. Right now, I only do that for twenty minutes and I have to take a lot of breaks to catch my breath. As I understand it, roller skating is as good at burning calories as running, but since I'm taking breaks, I count free skate at half the time, so 20 minutes of free skate = 10 minutes logged.

Does this sound okay? I really can't afford a body bug or anything like that at the moment. I just want to make sure I'm not reporting more calories burned than I really have burned. Any advice would be appreciated.