Why is that so?

I have been doing HIIT during my lifting days for the past 5 weeks, and the results from my training have been amplified ALOT.
Faster recovery time, less lactic acid buildup, bf% reduction, lean muscle mass gain.. just to mention a few.

My HIIT training is like this:
Warmup - 1-3mins

8 intervals of 1min run,1min walk= total 16min

Cooldown - 3mins

I lift on a 3day split per week.
But then again, thats just my body loving the combo. Not everyone is the same, gotta listen to your body.

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Added on April 14, 2009, 6:15 pmPerhaps you're running on too much a calorie deficit?

Perhaps you should try adding a little more carbs, I suggest pasta.

Muscles don't grow on protein alone, carbs play an important role in adding and maintaining muscle.

This post has been edited by tineagle: Apr 14 2009, 06:15 PM

not necessarily. If your weight is lower, but bf % is the same, you could be losing water/bowel discharge..etc

The best way is to see the bf weight itself. Most machine tests will show you the weight of body fats in your body