i just started walking 45 minutes a day since 2 weeks ago. so far i've been walking everyday but........ to tell the truth i'm lazy lol. i power walk at 6:30 in the morning (i'm 13 and it's a big sacrifice for me to wake up so early) i have a layer of fat (not a lot but enough to cover my muscles). i have muscle (thanks to a year of strength training) but i need to tone my body