Table 2.

Explanation of the parts of the formula used to convert the measured muscle tension into the actual muscle tension and their units

F1	Measured muscle tension in Newton (N)
L	Length of lower leg in centimeters (cm)
f	Weight of lower leg in Newtona (N)
α	Knee angle in degrees (°)
β	Hip angle in degrees (°)
δ	Lever arm of force (60) = 0.035 m

^aAccording to Leva (1996), with reference to studies by Zatsiorsky V and Seluyanov V [62], the percentage of the lower leg relative to the total body mass is 4.33 % in females and 4.81 % in males. The appraisal of the weight of the lower leg was based on these data