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Before
Body Weight Fat Percentage Body Fat Weight
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Body Weight Weight of Body Fat Lean-Body Weight
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Use the Same Factors to Calculate After Six Weeks.
After
Body Weight Fat Percentage Body Fat Weight
x
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Body Weight Weight of Body Fat Lean-Body Weight
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Final Results
Before Body Fat Weight After Body Fat Weight Total Fat Lost
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After Lean-Mass Weight Before Lean-Mass Weight Total Lean-Mass Gained
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Now that you know your body-fat percentage, you can calculate your lean-body percentage. This will
eventually show you how many pounds of muscle were added to your body, after completing the program.
For Example:
Before the program, Joe weighs 200 pounds (90.7 kg) and measures 30% fat, which amounts to 60
pounds (27.2 kg). Thus, his lean-body mass is 70%, or 140 pounds (63.5 kg).
After the program, Joe weighs 180 pounds (81.6 kg) and is 20% fat, which equals 36 pounds (16.3 kg).
His lean-body mass is 80%, or 144 pounds (65.3 kg).
Simple calculations allow us to find the amount of fat Joe lost, and the amount of muscle Joe gained.
Before fat weight (60 pounds), minus after fat weight (36 pounds) equals 24 pounds (10.8 kg) of fat lost.
After lean-mass weight (144 pounds) minus before lean-mass weight (140 pounds) equals 4 pounds (1.8
kg) of muscle gained.
Enter Your Information Here: (Pounds or Kilograms)
Calculating Lean Body Mass