Arc trainer

SofiaofNY

I am really digging this. I was a complete treadmill stickler and thought it looked a little weird - but when I read that it was low impact and a great calorie burner - I gave it a whirl and fell in love. It is the one thing in the gym other than crossfit that really makes me sweat - and what is working out with out sweating?????????? Also - I am really feeling it in my core. Does anyone know if it worked the core the way running does?