Total Body Water: Water is essential to your body’s process and function. The brain and heart are 73% water, Lungs are 83% water, and the bones in the body are 31% water ( H. Shimamoto, S Koyima, J. Physiology Anthropology Applied Human Sci. 2000). Most of us have heard “the human body is 60% water” since our time in grade school….because it’s true. Body water will decline as we age due to a variety of natural physiological processes. By the age of 65, muscle mass in humans drops approximately 25-30%. This is due to a combination of a decrease in muscle fiber diameter (drops of 20-30%) and decrease in muscle fiber number (drops of 25%). Muscle atrophy can begin in the 3rd decade of life and over the course life drop by 48% without resistance training. The maintenance of muscle mass is extremely important in relation to maintaining normal levels of water considered muscle can be composed of 79% water. Loss of muscle can directly affect total body water.
The normal range for an adult woman can range from 45%-60%, with males being slightly higher (50-65%) due to larger amounts of muscle tissue, bigger organs, and more hemoglobin and in extension blood (predominantly water).
How do I find my percent water on an Evolt 360 scan?
EVOLT 360 METRICS EXPLAINED
Evolt 360 Metrics Explained & How to Aid Recovery
The Evolt 360 provides insight into what your or your client’s body is really made up of, but what do these metrics all mean and how can this information be used to aid recovery? Chris Reader MS, NSCA-CSCS, Evolt’s very own Performance and Education Specialist explains all.
Total Body Water: Water is essential to your body’s process and function. The brain and heart are 73% water, Lungs are 83% water, and the bones in the body are 31% water ( H. Shimamoto, S Koyima, J. Physiology Anthropology Applied Human Sci. 2000). Most of us have heard “the human body is 60% water” since our time in grade school….because it’s true. Body water will decline as we age due to a variety of natural physiological processes. By the age of 65, muscle mass in humans drops approximately 25-30%. This is due to a combination of a decrease in muscle fiber diameter (drops of 20-30%) and decrease in muscle fiber number (drops of 25%). Muscle atrophy can begin in the 3rd decade of life and over the course life drop by 48% without resistance training. The maintenance of muscle mass is extremely important in relation to maintaining normal levels of water considered muscle can be composed of 79% water. Loss of muscle can directly affect total body water.
The normal range for an adult woman can range from 45%-60%, with males being slightly higher (50-65%) due to larger amounts of muscle tissue, bigger organs, and more hemoglobin and in extension blood (predominantly water).
How do I find my percent water on an Evolt 360 scan?
Total body water/Total weight = percentage of water
Based on where this person’s percentage is, coaches can dive into their client training/recovery/nutrition to see why a client may be less hydrated.
- Always Look at ratio/percent of Intracellular Fluid (ICF) to Extracellular Fluid (ECF) to gauge more about water in the body. The ICF lies within cells and is the principal component of the cytosol. The ICF makes up about 60-65 percent of the total water in the human body, and in an average-size adult male, the ICF accounts for about 25 liters (seven gallons) of fluid. This fluid volume tends to be very stable, because the amount of water in living cells is closely regulated. If the amount of water inside a cell falls to a value that is too low, the cytosol becomes too concentrated with solutes to carry on normal cellular activities; if too much water enters a cell, the cell may burst and this will result in cell death.
- The ECF accounts for the other one-third of the body’s water content. Approximately 20 percent of the ECF is found in plasma. The other third of that is found in the interstitial fluid.
- If you have more muscle tissue expect to hold more water.
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