What speed setting should you put on a treadmill when doing cardio to lose weight?

The maximum is 4.5 on the treadmill and i want to lose body fat not muscle im 14 and weigh 144 and want to weigh 134ibs please help 10 points for best answer

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Recommended Answer:

It doesn't matter how fast, rather it matters how long you run. The longer your heart rate is up, the more calories you'll burn. Slow and steady.

Other Answers:

• 3.5 to 4 is perfect for weight loss. Good luck! That's what I did for 4 months and lost 37 lbs.
• Basically keep a calorie count per day and burn more calories a day then your body takes in. Calorie count is the key not so much the # on a treadmill. Hope I helped! You can try a calorie calculator through google.