Technical Notes
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The muscle mass displayed includes the skeletal muscles, smooth muscles (such as cardiac and
digestive muscles) and the water contained in these muscles.
Muscles play an important role as they act as an engine in consuming energy. As your muscle mass
increase, your energy consumption increases helping you reduce excess body fat levels and lose weight
in a healthy way.
Research has shown that exercise and the development of muscle tissue are related to stronger,
healthier bones. While bone structure is unlikely to make noticeable changes in a short period, it is
important that you develop and maintain healthy bones by having a balanced diet and plenty of
exercise. People worried about bone disease should consult their physician. People who suffer from
osteoporosis or low bone densities due to advanced age, young age, pregnancy, hormonal treatment or
other causes, may not get accurate estimations of their bone mass.
Below is the result of estimated dry bone mass of persons aged 20 to 40, who are said to have the largest
amounts of bone masses, by weight. (Source: TANITA Body Weight Science Institute)
Please use the below charts as a guide to compare your bone mass reading.
- What is muscle mass?
This feature indicates the weight of muscle in your body.
- What is bone mass?
This feature indicates the amount of bone (bone mineral level, calcium or other minerals) in the body.
Women: Average of estimated dry bone mass
Weight (lb)
Less than 110 lb
4.3 lb
110 lb to 165 lb
5.3 lb
165 lb and up
6.5 lb
Less than 143 lb
5.9 lb
143 lb to 209 lb
7.3 lb
209 lb and up
8.1 lb
Men: Average of estimated dry bone mass
Weight (lb)
Weight (kg)
Less than 50 kg
50 kg to 75 kg
75 kg and up
1.95 kg
2.40 kg
2.95 kg
Weight (kg)
Less than 65 kg
65 kg to 95 kg
95 kg and up
2.66 kg
3.29 kg
3.69 kg
Persons described below may obtain varying readings and should take the values given for reference
purposes only.
- Elderly persons - Women after menopause
- People receiving hormone therapy
Note
“Estimated bone mass” is a value estimated statistically based on its correlation with the fat-free mass
(tissues other than the fat). “Estimated bone mass” does not give a direct judgment on the hardness or
strength of the bones or the risks of bone fractures. If you have concerns over your bones, you are
recommended to consult a physician.
