Damn, lots going on in here since I left this afternoon...
So yeah, I'm of the belief that doing cardio first thing in the morning, before any food, does have greater effects for burning fat. Reason: "The total amount of glucose from carbohydrate (foods) in the blood influences "how quickly" the body will tap body fat as fuel. Even a small carb snack before cardio work can elevate insulin levels and circulating insulin tends to oppose the use of fat as fuel. However, refraining from eating allows blood sugar levels to stay low. When sugar levels are low, the next fuel sources are stored muscle glycogen and body fat. After 5 minutes of constant aerobic work, your body will attempt to do its best and stop burning glycogen. Instead, it shifts its utilization of fuel so mostly body fat is used.
WL is so correct as for the walking, regarding how much work a 150 lb person will do verse a 300 lb person. But I'm pretty sure, every person that reads this on here, can get on a treadmill that can go up to 15% incline, start walking at 4.0 mph, NOT HOLDING ON, and that WILL get their heart rate up! If it doesn't, I'd personally like to know what your RHR (Resting Heart Rate) is!?!
GT Chick ~ Doing Pillates in the morning is great. I'm assuming you're doing the Floor Pilates, which is good, too. Just make sure you ARE getting your heart rate up around your Target Heart Rate (THR). Basically, if you're breaking a good sweat, great. If not..... hit it harder!!!! BTW, I did Pilates, but on the machine, for several months, almost a year ago now. I had to quit when I bought this truck, b/c I couldn't quite afford it anymore.
But I will get back into it, once I start making enough money off Massage Therapy and Personal Training.
The machine work is much better, IMO!!!