How much cardio first thing?

[Peta-Alana]

I have just bought an exercise bike to start doing some morning cardio.
i have been doing 20 mins, is this enough?
what would be a sufficent time to do first thing on an empty stomach for fat burning?

[nunu713]

[QUOTE=Peta-Alana;435567861]i have been doing 20 mins, is this enough?
QUOTE]

Is 20 mins enough for what? Enough to create a calorie deficit to drop fat? Enough to increase cycling speed or endurance? Enough to work up a little sweat before you shower?

What's the goal here?

[Peta-Alana]

[QUOTE=Peta-Alana;435567861]i have been doing 20 mins, is this enough?
QUOTE]

Is 20 mins enough for what? Enough to create a calorie deficit to drop fat? Enough to increase cycling speed or endurance? Enough to work up a little sweat before you shower?

What's the goal here?

for fat burning.

[nunu713]

Do you also do a weight routine or is this your only form of exercise?

[Emma-Leigh]

you could 'sit on your booty' whilst fasted and it would be enough for 'fat burning'... ;)
Fat is always burnt by your body when you are in a fasted state...

So just cycling lightly for 20 mins in a 'fasted state' so you can 'burn fat' is not really doing to do much (bike especially so - which is low resistance and low impact training)... Doing such fasted will likely cause a reciprocal decrease in your energy expenditure over the rest of the day.

Cardio CAN help with weight loss - but you are better off eating first, and then flogging yourself ratty once to twice a week while you 'burn a stack of calories' instead of trying to 'burn fat' with lighter 'fasted cardio.

If you REALLY want to 'lose fat' => diet. ;)