Can I get a sufficient workout from two 15 min intervals on an Elliptical?

I'm 5'2, 245lbs. I find that all I can do is 15 mins at a time so I rest and do another 15 mins. Or should I try another approach for weight loss?

How to Lose Weight while Pregnant

Recommended Answer:

The longer you can stay on the elliptical, the better. Get a metronome app or a podcast that is 120 BPM and get your feet on the elliptical traveling at 120 RPM. take a note of the speed. Now, try going for 30 - 45 minutes without any resistance. Do that 3 times in a row and if you think that is too easy than dial up the resistance a little. If you can't do even 30 minutes at the easiest setting, then take note of how far you can go and try to add a minute to that each week.