Body Composition

Body composition
Unverified data

Unverified data has been collected in environments where protocols and staff may not be validated under GPTQA conditions.

Tip:

Make sure you prepare properly before completing a BIA or body composition scan.

Do not do strenuous exercise or have a large meal within the three hours prior to your scan and make sure you drink approximately 500ml of water in the thirty minutes before your scan too.  You can see information on how to prepare for a valid body composition assessment in our FAQs section.

GPTQA verified data

Verified data has been collected in an environment controlled and managed under GPTQA conditions and can be relied upon for professional assessment and tracking.

You can book a professional GPTQA with assessment with Global Wellness Tracking here.

Normative data

Normal ranges based on health and medical resources globally.  Please refer to your health professional for individual needs and levels.

Body fat percentage

Average population

Males:

  • Up to 30 years | 9 – 15%
  • 30 – 50 years | 11 – 17%
  • 50+ years | 12 – 19%

Females:

  • Up to 30 years | 14 – 21%
  • 30 – 50 years | 15 – 23%
  • 50+ years | 16 – 25%
  •  

Percentages by classification – Males

  • 20 – 39 years
    • Underfat | <7%
    • Healthy | 7 – 20%
    • Overfat | 20 – 25%
    • Obese | >25%
  • 40 – 59 years
    • Underfat | <10%
    • Healthy | 10 – 22%
    • Overfat | 22 – 28.5%
    • Obese | >28.5%
  • 60 – 79 years
    • Underfat | <12%
    • Healthy | 12 – 25%
    • Overfat | 25 – 30%
    • Obese | >30%

Percentages by classification – Females

  • 20 – 39 years
    • Underfat | <21%
    • Healthy | 21 – 34%
    • Overfat | 34 – 39.5%
    • Obese | >39.5%
  • 40 – 59 years
    • Underfat | <23%
    • Healthy | 23 – 34%
    • Overfat | 34 – 40%
    • Obese | >40%
  • 60 – 79 years
    • Underfat | <24%
    • Healthy | 24 – 36%
    • Overfat | 36 – 41.5%
    • Obese | >41.5%

Body mass index (BMI)

Calculation

Body mass index = weight (kg) / height (m)2

Normal ranges and classification

  • Underweight | <18.5
  • Healthy weight range | 18.5 – 24.9
  • Overweight | 25 – 29.9
  • Obese | >30

Basal metabolic rate (BMR)

Energy expenditure is continuous, but the rate varies throughout the day. The rate of energy expenditure is usually lowest in the early morning.

Average BMR

  • Male | 7,100 kJ per day
  • Female | 5,900 kJ per day

Visceral fat

Ranges

  • Healthy | 1 – 12
  • Excessive | 12 – 59

Bone (skeletal) mass

Ranges

Males:

  • Body weight | <65 kg = 2.65 kg healthy bone mass weight
  • Body weight | 65 – 95 kg = 3.29 kg healthy bone mass weight
  • Body weight | >95 kg = 3.69 kg healthy bone mass weight

Females:

  • Body weight | <50 kg = 1.95 kg healthy bone mass weight
  • Body weight | 50 – 75 kg = 2.40 kg healthy bone mass weight
  • Body weight | >75 kg = 2.95 kg healthy bone mass weight

Total body water

The average TBW% ranges for a healthy person are:

  • Female 45 to 60%
  • Male 50 to 65%.

 

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