Differences in Elliptical training

[alewisdvm]

At my 24 hour fitness they appear to have two different elliptical trainers.
One unit: There isn't the motor behind it, and when you pedal, your heel comes up like you are stepping. You can change the resistance.

Second unit: It looks like you take a longer stride and the machine pedal kind of moves with your heel. I understand you change it like going up a hill. So, more of a "incline" change not resistance.

Is there a significant difference between the two? One a better workout or one better for the core.

Thanks

[ZiR RED]

Elypticals are great if you want something low impact or are injured.

Otherwise, use the treadmill. Greater caloric expenditure, more muscles used, greater core activation.

Br

[alewisdvm]

tough call.
My problem is I have flat feet. The right ankle does get a bit more aggravated with jogging, although I could try jogging instead on the treadmill.
So far, elliptical causes no problems.

I do have orthotics, and I also have excellent shoes to reduce pronation (Asics beasts)

[Steelwolf]

I have flat feet and pronatation issues as well. I used to use the bike a ton and the eliptical as well

[tubbednova]

The one with out the motor in the back is more then likely a cross trainer(like a stepper/elliptical)my personal fav.i get a higher heart rate,more of a burn(using more energy)just a tougher unit for me.