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Relational Girth Measures

Target, Track, and Trend Your Wellness

Many of the Fit Grader assessments determine girth measurements for several body parts.  The relationship and/or ratio of these have been shown to correlate to increased/decreased odds for developing various diseases.  They can also be used to estimate lean body mass and are a simple way to track changes over time.

Following are the scoring standards we follow broken down by gender and age.


Waist to Hip Relation Score – Risk Level 

Persons with extra weight located around the middle are at higher risk for diseases such as heart disease and diabetes than those who carry weight around their hips and thighs. Abdominal fat, when out of proportion to total body fat, may be considered an indicator of health risks.

Men      Low(10)   Mod(7.5)   Above(5)    High(2.5)    Very High(0)
20-29      <.83       .83-.88       .89-.93       .94-.97           >.98
30-39      <.84       .84-.91       .92-.95       .96-.99           >1.0
40-49      <.88       .88-.95       .96-.99       1.0-1.1           >1.2
50-59      <.90       .90-.96       .97-1.0       1.1-1.2           >1.3
60-69      <.91 .      91-.98       .99-1.1       1.2-1.3           >1.4

Women Low(10)   Mod(7.5)    Above(5)    High(2.5)    Very High(0)
20-29        <.71      .71-.77       .78-.81       .82-.85           >.85
30-39        <.72      .72-.78       .79-.83       .84-.86           >.86
40-49        <.73      .73-.79       .80-.85       .86-.88           >.88
50-59        <.74      .74-.81       .82-.87       .88-.90           >.90
60-69        <.76      .76-.83       .84-.89       .90-.91           >.91

(modified from nsca guide to tests & assessments 2012)


Waist to Height Ratio – Risk Level

The degree of central fat distribution may be more closely tied to metabolic risks than BMI. Measurement of the degree of central fat distribution thus appears to be important for the early detection of subsequent health risks, even among those of normal weight.

Men      (0)       (2.5)         (5)         (7.5)          (10)          (7.5)         (5)          (2.5)        (0)
<.35    .35-.39   .40-.43     .44-.45      .46-.52     .53-.55    .56-.57    .58-.63     >.63

  • Ratio less than 35: Abnormally Slim to Underweight
  • Ratio 35 to 43: Extremely slim
  • Ratio 43 to 46: Slender and Healthy
  • Ratio 46 and 53: Healthy, Normal Weight
  • Ratio 53 to 58: Overweight
  • Ratio 58 to 63: Extremely Overweight/Obese
  • Ratio over 63: Highly Obese

Women      (0)      (2.5)         (5)        (7.5)        (10)        (7.5)         (5)          (2.5)        (0)
<.35    .35-.39   .40-.41     .42       .43-.49    .50-.52    .53-.54    .55-.58     >.58

  • Ratio less than 35: Abnormally Slim to Underweight
  • Ratio 35 – 42: Extremely Slim
  • Ratio 42 to 46: Slender and Healthy
  • Ratio 46 to 49: Healthy, Normal Weight
  • Ratio 49 to 54: Overweight
  • Ratio 54 to 58: Seriously Overweight
  • Ratio over 58: Highly Obese

adapted from https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0177175 and shapefit.com/calculators