What kind of interval running is best to loose weight and how much?

Question

What kind of interval running is best to loose weight and how much?

Answer 1

Easiest way to lose *fat* is to run at 60-70% of your max HR. (220-age)...for long periods.

Best way to lose weight (muscle) would be to run at a higher intensity e.g. 80-90% of your max HR, again and again.

I assume you mean fat loss?

Run for as long as you can at 60-70% HR and do it again and again.

Answer 2

"intervals" implies that you are running a  set distance, usually a mile or less, repeatedly. This will not really help you lose weight. In order to do that you must go and run continually, for a prolonged period of time at a pace comfortable to you.

Answer 3

It is "lose" weight.  Loose is something altogether different, like what your skin wil be after you lose the weight.