I hate the treadmill but for those who don't: TREADMILL SHREDMILL WORKOUT! It's 45 min long with a 5 min cooldown. This is part of my bikini comp cardio. And yes, you CAN last this long on a treadmill. Trust me.
used to do this routine everyday for 45 days. paired with a 1000 calorie/day diet and strength training, 100 jumping jumping rope., 5 inches from waist, 3 dress sizes. To everybody that has asked me my secret to losing.