If they can do it I can too! So today I set my incline at 10! I managed to keep it at that incline for 15 minutes before my calves were screaming. I finished out my walk at an incline of 4, which at this point was a walk in the park. Afterwards I strapped on my fancy new ice pack. A result of watching "Biggest Loser." I guess it's proof that product placement really does work! But hey, this ice pack is AMAZING and so handy!