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Hiit

Destroyer1986*

New member
Well now that's summer is approaching, everyone wants to lose weight. Cardiovascular exercise is a key component to shedding off those pounds. If you are interested in how to do this effectively than I suggest you read this post with some common questions that I've read and their answers.

What type of cardio should I be doing, high intensity or low intensity?

Well there have been recent studies about this. One group of people did high intensity cardio for a period of time while others did low intensity cardio. At the end of the experiment the group doing the high intensity cardio had burned more fat than the group who did low intensity cardio. The truth is that low intensity cardio for long periods of time actually burns more fat while you're exercising than the high intensity. They also burned a similar amount of calories during the exercise. However, studies showed that the group that did high intensity cardio continued to burn those calories afterwards while the group who performed low intensity burned barely any calories afterwards ultimately resulting in many more calories burned by the high intensity group. For long term fat loss, it is not techinically how much fat you're burning, but how many calories you are burning since the calorie deficit ultimately results in total fat loss.

Is HIIT a good form of cardio

Yes, HIIT is a great form of high intensity cardio. I would recommend it to anyone who is trying to lose some weight.

What is HIIT?

High Intensity Interval Training. It should take you about 15 to 20 minutes to complete and you do it in intervals. An example would be sprinting for 20 seconds than briskly walking for 40 seconds before repeating for the desired number of times. There are many other ways you can do this though. For more info on HIIT I suggest you read this, http://davedraper.com/hiit-cardio-training.html

Does it matter how I do the cardio?

Well I suggest running and walking because it's easy and you can do it just about anywhere. However if you would like, you can try an exercise bike or a rowing machine.

Should I be doing cardio in the morning on an empty stomach?

Well the answer is yes if you would like to burn that muscle that you've worked so hard for. The problem is that in the morning you are at a fasted state and cortisol levels are high. Cortisol is a catabolic hormone which aids in the loss of muscle. If you do the cardio on an empty stomach, your body will use your muscle that you've worked so hard for, in order to supply you with energy. What is the solution? Well I suggest that you eat some complex carbs such as oatmeal about 45 minutes before your cardio session so that they can provide your body with the fuel it needs and not your muscle.

If I eat carbs before my cardio, won't my body just be burning the carbs and not the fat?

Studies have shown that it's not what nutrients your body is burning that matters. Like I said before, what's important for fat loss is how many calories in total that you're burning.

When is the best time to do cardio?

It really doesn't matter as long as you're not doing it on an empty stomach.

What should I consume for post cardio nutrition?

A good whey protein shake should be sufficient, just like you drink post lifting.

Should I do my cardio on lifting days?

Try not to. Try to do your cardio on non lifting days so you can put all your energy into the cardio. If you have to do it on lifting days though make sure that you're doing it after you lift so you won't waste your lifting energy on cardio. I don't recommend doing cardio the day that you're training legs though.

Thanx BigNbuff
 
Isn't the HIIt supposed to preserve muscle while on empty stomach? Because you are actively using the muscle...

I had that ideia, from stuff that I have read.

So the best is to do this form of cardio with some food before...? Even low intensity?

thanx
 
Gumball said:
Isn't the HIIt supposed to preserve muscle while on empty stomach? Because you are actively using the muscle...

I had that ideia, from stuff that I have read.

So the best is to do this form of cardio with some food before...? Even low intensity?

thanx


ive also read that cardio on an empty stomach helps burn more fat and preserve the muscle
 
Cardio on an empty stomach will most definitely not preserve muscle. Think about it. Cortisol is a catabolic agent in your body. Catabolic is the opposite of anabolic. Anabolic is growth. So, your body will be in the process of breaking down your muscle tissue, should you not get any nutrition. That's just sitting around. Now, put your body at intense levels that HIIT calls for, and kiss muscle goodbye. For an average person, it won't be anything too noticable. If you're looking to be above average though, and keep your muscle tissue, don't do cardio on an empty stomach.

Not sure if it's a good analogy, but Synpax used a car for cardio the other day (tires to sneakers) so what about no gas in the tank? Would you try to push your car (or expect it to preform well) with no gas? I wouldn't. Give your body energy.
 
Has anyone seen/heard of the interval cardio routine that Bill Phillips uses in the Body for Life program? It's 20 minutes, basically the same idea but a little more gradual.
http://www.bodyforlife.com/cardio.shtm
For example, I do it on the treadmill, and it looks like this:

Minutes 1-2: warmup (about 5 mph)

Then I repeat this 4-minute cycle a total of 4 times:
1 min: 5.5 mph
1 min: 6 mph
1 min: 6.5 mph
1 min: 7 mph

On the 4th time, I add a final minute at 7.5 or 8 mph, then drop down to 5 mph for the final minute of the workout (and on top of that, walk at about 3-3.5 mph until I truly feel cooled down).

I was just wondering if HIIT or this program is better, or are they about the same? I've done this interval one and had great results.
 
Tom Treutlein said:
Cardio on an empty stomach will most definitely not preserve muscle. Think about it. Cortisol is a catabolic agent in your body. Catabolic is the opposite of anabolic. Anabolic is growth. So, your body will be in the process of breaking down your muscle tissue, should you not get any nutrition. That's just sitting around. Now, put your body at intense levels that HIIT calls for, and kiss muscle goodbye. For an average person, it won't be anything too noticable. If you're looking to be above average though, and keep your muscle tissue, don't do cardio on an empty stomach.

Not sure if it's a good analogy, but Synpax used a car for cardio the other day (tires to sneakers) so what about no gas in the tank? Would you try to push your car (or expect it to preform well) with no gas? I wouldn't. Give your body energy.


Well generally Cortisol is produced based on stress, not an empty stomach as explained here at medline http://www.nlm.nih.gov/medlineplus/ency/article/003693.htm
But I understand what you are saying. An empty stomach would cause the body to metabolize muscle to fuel your workout.

What I would like to know is if people have taken some supplement that causes the body to target stored fat in the above situation and gotten cut from doing so??
 
Figureskater-

Body-for-life? How hard can it be. That's what I originally thought about the 20 minute cardio session you recommended. Then I tried it this morning. Not too shabby. I'm gonna stick with this for a while.

Thanks!
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