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How Does Dehydration Affect Body Fat Measurement. Dehydration causes energy levels to drop and leads to increased tiredness making it difficult to be active. A study performed in ten-weight trained males reported that passive dehydration resulting in approximately 15 loss of body mass as a result of water loss decreases muscle strength of one rep max bench press. By increasing the amount of water in your body youre effectively increasing your lean tissue amount and decreasing your body fat percentage. Fatty tissue which is about 10 to 20 percent water slows the signal.
Additionally dehydration contributes to reduced enzyme activity and slower metabolic processes. The problem is that hydration plays a major role in this reading. The brain is made of roughly 80 water and is therefore very sensitive to changes in water level. This can also lead to tiredness and often mistaken for hunger. 06-13-2013 0315 PM 2. By increasing the amount of water in your body youre effectively increasing your lean tissue amount and decreasing your body fat percentage.
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An overestimation of body fat. Hydration status can be useful when reviewing the results of a body composition test. Hydrate yourself drink 8-10 ounces of water 2-3 hours before testing. If you are dehydrated the current will pass through at a slower rate and show an inflated body fat percentage. Additionally dehydration contributes to reduced enzyme activity and slower metabolic processes. Now that youre aware of the importance of being well-hydrated to gain lean body mass youre probably curious if your hydration status can also impact fat loss efforts.