1) Children and adolescents under 18 years old. Persons under 18 years old ingest relatively higher nutrition and develop relatively fast and at present there is no standard evaluation system for components of the bodies in persons under 18 years old, therefore, some measurement indicators vary according to different ages in our system.

 

 

Indicator type

Effective age

Body Weight

Effective at any age

BMI (Body Mass Index)

≥ 4 Years old

Body fat percentage

≥ 10 years old

Body water percentage

≥ 10 years old

Subcutaneous fat

≥ 10 years old

Basal metabolic rate

≥ 10 years old

Fat free mass

≥ 10 years old

Visceral fat grade

≥ 18 years old

Skeletal muscle percentage

≥ 18 years old

Muscle Mass

≥ 18 Years old

Bone mass

≥ 18 years old

Protein

≥ 18 years old

Metabolic age

≥ 18 years old 

Physical Age

≥ 18 years old 

Health score

≥ 18 years old 

 

 

 

2) A Pregnant Woman: Her body has fetus (or fetuses) and amniotic fluid, and in detection process these uncertain factors will affect accurate values of body data, therefore, fat percentage and other data cannot be used as reference and it is suggested to measure only weight.

 

3) A professional bodybuilder: Target population of this product is general population. Since professional body builder’s body muscle percentage and fat percentage belong to special percentages, therefore, fat percentage data measured by this product may be different from those measured by a specialized instrument or equipment for use in a hospital and it is suggested that such population pay attention to long-term change in data, rather than measurement value itself.