umm i have a friend thats working out 2x a day like 4 times a week, is this good or bad :/ im assuming shes doing weights in the mornin and cardio at night -- or other way around... do you guys suggest this? I might wanna try it

It is probably not a good idea for her (I know who she is). She should really be eating way more, she is likely starving herself with the amount of training and lack of eating shes doing.

I usually do cardio and weights on the same day, I don't see the big deal. If you're weight training twice a day that's a bit different though...

i do it most days and eat a huge amount but i always feel like crap.

weight training on the same day is a big no no. You'll be eating yourself.

since we (or i ) dont know what shes trying to do, i wont say anymore.

Football and track we run and lift, and I end up eating fucking tons of food throughout the day just to stay running.

This is also the latest I've stayed up on a weekday in nearly four weeks.

so weights twice a day is bad?? .... but weights/cardio is a go?... how about weights/cardio in the mornin, and cardio at night?

Wow I'm lost

Don't go too hard, rest is good thing

I don't see the point in doing cardio twice a day. It takes a while in a cardio session for your body to actually start burning fat. It takes about 20-30 mins for the body to use up its glycogen stores. So doing cardio at two different periods during the day would really fuck things up. By your second session the glycogen levels would likely be back up and you would have to burn through it again. So this is obviously a very inefficient way of going about it. There is no reason to do more than one session a day if fat burning is your goal. If you're training for a racing event that's another story

Also, your cadio sessions shouldn't be any longer than about 40mins (once per day) as after that you're likely to start losing muscle mass. Don't forget muscle burns fat.

You have two options really. The best time to do cardio is in the morning on an empty stomach (empty aside from water you should be drinking) as you will enter the fat burning stage MUCH quicker. And then do weights later on after eating. If you're going to be doing one extended weight/cardio workout (obviously after eating) then do weights first to utilize those glycogen stores. This will make the cardio after the weights much more efficient as, again, the glycogen will be used up.

I never do cardio and weights on the same day. People that usually do both aerobic and anaerobic excercises on the same day are those training for a specific competition but it's not something I'd recommend to others. As long as your friend gets in all the right meals and doesn't burn out then it seems fine.

Calories in<calories out = weight loss.

Those carbs will be taken off her total calorie intake.

THere will be some fat loss with an elevated heart rate after workout.

HIIT doesnt burn fat during the workout yet its proved to be more efficient then regular cardio.

Ya a caloric deficit is important. And yes intense cardio will elevate your metabolic rate and you will continue to burn calories after your workout. But there's more to it than that. Pace, duration and timing all play their roles as well. Not everyone agrees with this obviously. Interesting article from IronMan Magazine I found on bb4u on the subject. It covers both sides of the argument pretty extensively.

http://www.bodybuildingforyou.com/articles...AM-fat-burn.htm

Assuming all exercise is the same is like assuming all food eaten is the same, which we know is false