Seca ct330 - Page 81

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5 Appendix
5
Instructions for Use
Resting & Stress ECG with seca ct330/331 and seca diagnostic 5.9
Calculation of the target load
seca diagnostic offers three different calculation options for calculating
the target load at maximum workload: “according to Rost & Hollmann”,
“according to Wonisch et al.” and “according to Reiterer”. The setting
can be found on the Examination, Stress ECG, Settings, Diagnostic,
Reference values screen.
Calculation of the target load according to Rost & Hollmann
Male, under 30 years of age:
Target load = 3 * weight
Female, under 30 years of age:
Target load = 2.5 * weight
Male, over 30 years of age:
Target load = 3 * weight * ((130
- age) : 100)
Female, over 30 years of age:
Target load = 2.5 * weight * ((130
- age) : 100)
Source: Rost, R. & Hollmann, W. (1982): Belastungsuntersuchungen in der Praxis, Georg
Thieme Verlag, Stuttgart, New York. 164 p.
Calculation of the target load according to Wonisch et al.
female:
3.933 + (86.641 * body surface)
- (0.015 * age) - (0.346 * body surface * age)
male:
6.773 + (136.141 * body surface area)
- (0.064 * age) - (0.916 * body surface
area * age)
Source: Wonisch M., Berent R., Klicpera M., Laimer H., Marko C., Pokan R., Schmid P.,
Schwann H. (2008): Praxisleitlinien Ergometrie. Journal für Kardiologie - Austrian Journal
of Cardiology. 15(A): 3-17.
Body surface area according to DuBois & DuBois
BSA = 0.007184 * height [cm] 0.725 * weight [kg] 0.425
Source: DuBois, D. & DuBois, E.F. (1916): A formula to estimate the approximate surface
area if height and weight be known. Arch Intern Med, 17: 863