G
B
9
Body Water Chart***
BF % RANGE
OPTIMAL TBW % RANGE
Men
4 to 14%
70 to 63%
15 to 21%
63 to 57%
22 to 24%
57 to 55%
25 and over
55 to 37%
Women
4 to 20%
70 to 58%
21 to 29%
58 to 52%
30 to 32%
52 to 49%
33 and over
49 to 37%
Fig. 2
** Source: University of Illinois
Department of Food Science and
Human Nutrition.
Body Fat Percentage Calculator.
www.ag.uiuc.edu/~food-lab/ai/bfc.html
*** Source: Derived from Wang &
Deurenberg: “Hydration of fat-free
body mass”. American Journal Clin
Nutr 1999, 69 833-841.
Body water measurement results are influenced by the proportion of body fat and muscle. If the
proportion of body fat is high, or the proportion of muscle is low then the body water results will
tend to be low.
It is important to remember that measurements such as body weight, body fat and body water are
tools for you to use as part of your healthy lifestyle. As short term fluctuations are normal, we suggest
you chart your progress over time, rather than focus on a single days reading.
Basal Metabolic Rate (BMR) - What does it mean?
Your Basal Metabolic Rate (BMR) is an estimation of the energy (measured in calories) expended by
the body, at rest, to maintain normal body functions.This continual work makes up about 60-70% of
the calories the body uses, and includes the beating of your heart, respiration, and the maintenance of
body temperature.Your BMR is influenced by a number of factors, including age, weight, height, gender,
dieting and exercise habits.
Why Should I Know My Muscle Mass?
According to the American College of Sports Medicine (ASCM), lean muscle mass may decrease by
nearly 50 percent between the ages of 20 and 90. If you don’t do anything to replace that loss you’re
losing muscle and increasing fat. It is also important to know your muscle mass % during weight
reduction. At rest, the body burns approximately 110 additional calories for each kilo of muscle gained.
Some advantages of gaining muscle mass include:
•
Reversing the decline in strength, bone density and muscle mass that accompanies age
•
Maintenance of flexible joints
•
Guide weight reduction when combined with a healthy diet.
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