Training intensity - Fat burn 65% of max heart rate ???

On the cross-trainer machines I use its got Fat Burn listed as 65% of
max heart rate with Cardio as 80% of max heart rate. Also listed that
65% for my age is about 130bpm.

Question is :- Is this really the best rate to exercise at to burn
fat?

Why isnt a higher heart rate better? If I'm exercising at a higher
rate am I burning less fat then?

The thing is thats a pretty low heart rate - when I try to stick to
this it leaves the machine on the lowest setting and is always telling
me to slow down...

.

Relevant Pages

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