Evaluation and Testing
Calculations

On your own paper:
 Write
 Find
out each equation
the answer for the practice scenario
BMI

BMI = Weight
(kg)/Height2(m)

Lbs to kg, divide by 2.2

Inches to meters, multiply
inches by 0.0254

Ex: 200lbs and stands 5/10”

Weight = 200lbs/2.2 = 90.9kg

Height = 70 inches. 0.0254 =
1.778 m

BMI = 90.1 / 1.778 2 = 28.7

Your turn:

Find BMI for a client who weighs
132 lbs and stands 5’7”
Body composition and goal weight (desired
weight)
 determine fat weight in lbs:
BW x body fat % 168 lbs x
28% = 47lb of fat
knowing how to calculate body
composition can help determine
desired (goal) body density (weight)
This is assuming that Lean mass will
not be changing throughout the
program.

determine lean body weight
(LBW): total weight – fat
weight: 168lbs – 47lbs = 121
lbs of lean mass)

If you know the body fat % you will be
able to determine goal weight.


Example: a female client’s current
weight is 168 lbs, with 28% body fat.
calculate goal weight: divide
current LBW by 76% which is
100% - goal BF%. 121 / 0.76
= 159lb

Goal: to achieve 24% body fat without
losing lean mass.

Waist to hip Ratio

excess body fat and its locations poses significant health
risks. Clients with apple shaped bodies (carry weight
around abdomen). If they have a high WHR they have a
greater health risk.

WHR = waist measurement is divided by the hip
measurement.

Your client has Hip circumference of 30 and waist of 42
MHR

age predicted HR: 220- age
 Find
for client: 37 years old, RHR: 79 bpm, 65% intensity

Karvonen formula: [(220- age) – (RHR)] x % Intensity + RHR

Exercise heart rate using Tanaka, Monahan and seals: [(208 –
(0.7 x Age) x 85%}