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Old 04-14-2007, 08:52 PM   #1
Carl Woodward
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Location: Livermore  CA
Posts: 9
Hey there, a question on the Zone and LBM loss.

I have been on Zone for about 3 months. My body fat has dropped from 19% to 12% but based on the calculations, I have also lost ~6-7 lbs of lean body mass.

I started at 187lbs am now 168 and still at 17 blocks. My energy level is good and my strength has not decreased.

For those of you with more zone experience, is lbm loss on the Zone normal or do I need to adjust my blocks?

Any help much appreciated.

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Old 04-14-2007, 09:07 PM   #2
Nick Cummings
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If your strength has not decreased I would suggest that the loss might be in the calculations or in water weight. You could possibely be losing LBM but that seems inconsistent without strength loss. How are you estimating your body fat percentage and what ammount of error is built into the method? Also do you feel you are improving in your exercise?
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Old 04-14-2007, 09:23 PM   #3
Carl Woodward
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Location: Livermore  CA
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Hi Nick.

Thanks for the response.

I am using the waist - wrist method in "Entering The Zone"

Not sure on margin of error but as long as I use the same method to calculate each time it is somewhat negated.

I feel as though my exercises are improving but somewhat slowly on the strength side. Overall energy level is good, the only time I bonk during a WOD is if I do not get enough sleep.

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Old 04-15-2007, 07:34 AM   #4
Larry Lindenman
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Lot's of error in bodyfat calculations. When performance drops, increase fat blocks. Water weight is calculated as lean body mass. Your doing great.
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Old 04-15-2007, 12:23 PM   #5
Jordan Glasser
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Exactly right! Body fat calculations are really just body fat estimations, not science. Sounds like you're right on track.
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Old 04-16-2007, 06:04 AM   #6
Craig Van De Walker
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By my calculations your number show closer to 3 lb change (LBM loss) if my math was correct. Which is about 1.5% of your original bodyweight. I would guess the "wrist method" is accurate to plus or minus 5% with 90% of the people who use it. Even the gold standard BF measurements have a margin of error greater than 2%.

The long and short is to use performance as your guide! Are you stronger and performing better? If yes you are moving in the right direction!

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