Parameters:
(1) mid-arm circumference in cm (MAC) in cm
(2) triceps skinfold thickness in cm (measured in mm)
(3) corrected arm muscle area (CAMA) in square cm
CAMA in males =
= ((((MAC in cm) - ((PI) * (triceps skinfold thickness in cm)))^2) / (4 * (PI))) - 10
where:
• 10 represents the bone area in males.
• Measurement of MAC is discussed in 02.03 (above).
Equations with Weight
These are listed on page 125:
muscle mass in kilograms =
= (0.265 * (weight in kg)) + (0.672 * (MAC)) - 5.314
muscle mass in kilograms =
= (0.309 * (weight in kg)) + (0.202 * (CAMA)) + 4.971
Equations without Height, Reference
These are listed on page 124:
muscle mass in kilograms =
= (1.641 * (MAC)) - 15.580
muscle mass in kilograms =
= (0.496* (CAMA)) + 10.183
Equations without Height, Alternative
These are listed on page 125:
muscle mass in kilograms =
= (1.442 * (MAC)) - 11.065
muscle mass in kilograms =
= (0.50 * (CAMA)) + 9.623
|
Equation
|
r value
|
SEE
|
|
with height, MAC
|
0.79
|
2.62 kg
|
|
with height, CAMA
|
0.79
|
2.59 kg
|
|
reference without height, MAC
|
0.72
|
2.91 kg
|
|
reference without height, CAMA
|
0.62
|
3.29 kg
|
|
alternative, MAC
|
0.71
|
2.57 kg
|
|
alternative, CAMA
|
0.61
|
2.90 kg
|
