Body Fat Doesn't LIE!
When you are trying to get back into shape, stay in one pant size, or perform at an optimal level, measuring percent body fat to muscle mass ratio is a positive way to chart your progress.
Most individuals go by the poundage lost or gained on the scale. However when you choose this method to follow your progress, how do you know which weight you are adding or subtracting? Did you know a person who is over thirty will lose 1-2 pounds of muscle a year if they do not incorporate resistance training into their weekly routine? Calorie restriction can also increase body fat percentages. If you do not eat enough to meet your daily energy requirements the body holds on to fat more tightly and uses the muscle as an energy source. Body Fat then becomes the new occupant of this space. To top it all off, body fat does not even discriminate against age!
Muscle is your personal engine. It needs "gas" (energy) to run, requires the right mix of fuel at the right time to burn efficiently and entails continuous maintenance to function properly and keep its interior/exterior beautiful. Most people start with an 8 cylinder engine that has more speed then they can control! By the time they are done the cylinder head is cracked, the oil is leaking, and there is just enough power to start the engine. The great news is... It is never too late to rebuild the engine!!!! (Muscle!)
What Methods to Use
For best results, I highly recommend one of these methods for measurement:
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Underwater weighing
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Bod Pod™ ( www.bodpod.com )
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DEXA Scanning
Skin fold calipers and Body Fat scales are usually off anywhere from 6-10% on the low end! At Sports Nutrition 2Go we use the Bod Pod™.
How Often to Measure
| Non-Athletes |
| Beginning a program |
Once at the beginning and then one every 8-12 weeks until the desired goal is reached |
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| Monitor health |
Varies from 1-4 times per year |
| Athletes |
| In season |
Every 4-6 weeks |
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| Post season |
Take a month off and then a minimum of every 8 weeks if at desired percentages |
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| Improve fitness/injured |
Every 3-4 weeks |
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Advantages
Non-Athletes:
Athletes:
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Monitor health
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Prevent over training (Body fat will increase)
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Maintain proper muscle mass to body fat ratios for the sport (And throughout the season)
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Monitor strength and conditioning programs (Should not be losing muscle as the season ends)
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May detect an eating disorder (Athlete's body fat is increasing without reason)
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Finding the right amount of muscle that optimizes performance (You can gain too much muscle which will slow you down)
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Minimize Body Fat gain and muscle mass loss when injured
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Minimize too low of a body fat
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Motivate
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To prove that sports nutrition does work!
Whether you are in denial, trying to achieve a new fitness level, or optimizing performance, it is important to know your ratio of muscle mass to body fat in order to map your progress. So go find out, body fat tells the truth!
Dawn Weatherwax, ATL, RD/LD, CSCS
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