Skinfold Body Fat Assessment

This video shows Dr. Evan Matthews explaining how to perform a body composition assessment to estimate body fat percentage using skinfolds. This is a common field test used in fitness centers and with athletes and the general population. This video starts by going over general tips and guidelines, then moves to how to perform the most common seven sites, then how to use the skin fold measurements to calculate body fat percentage (the rest of the tissue is lean tissue mass).



Link to video showing how to perform hydrostatic weighing (under water weighing) to assess body fat percentage.
   • Hydrostatic - Under Water - Weighing ...  

Link to video showing how to use bioelectrical impedance analysis to assess body fat percentage.
   • Body Fat Percentage - Bioelectrical I...  

Link to video showing how to measure waist and hip circumference.
   • Waist and Hip ratio  



Male Body Density Equation (ACSM’s Guidelines for Exercise Testing and Prescription)

Body Density = 1.112 - (0.00043499 x sum of skinfolds) +
(0.00000055 x square of the sum of skinfold sites) - (0.00028826 x age)


Female Body Density Equation (ACSM’s Guidelines for Exercise Testing and Prescription)

Body Density = 1.097 - (0.00046971 x sum of skinfolds) +
(0.00000056 x square of the sum of skinfold sites) - (0.00012828 x age)



Siri Equation to go from body density to body fat percentage

Total Body Fat % = (495 / Body Density) – 450



Link to Dr. Evan Matthews website.
https://sites.google.com/site/evanmat...