[Light reflection rheography and invasive measurement of venous pressure in the standing exercise test].
The peripheral venous hemodynamics of the lower limbs was simultaneously and repeatedly investigated by means of light-reflection-rheography and peripheral venous pressure measurement with healthy volunteers (total = 40 lower limbs). Two different kinds of exercise were used (knee-bends and tiptoe-stands). The measurements showed highly significant differences (p less than 0.001) between knee-bends and tiptoe-stands not only for all three hemodynamic parameters of non-invasive light-reflection-rheography (maximum reflection difference, refilling time, half-refilling time) but also for all three parameters of the invasive venous pressure measurement (venous pressure difference, refilling time, half-refilling time). There are statistically significant correlations of medium importance (p less than 0.01) between refilling times/half-refilling times of both investigative methods by knee-bends and tiptoe-stands. But there is no significant correlation between light-reflection difference and venous pressure difference. As exercise programme of light-reflection-rheography or invasive peripheral venous pressure measurement the most suitable is the programme in standing position, which represents the maximum hydrostatic load on the insufficient veins and reveals the pathologic condition of venous outflow better than the exercise programme in sitting position.
Seycek
J
J
D000328:Adult; D005080:Exercise Test / Q000379:methods*; D005260:Female; D006801:Humans; D008297:Male; D010991:Plethysmography / Q000379:methods*; D012016:Reference Values; D014690:Venous Pressure
Licht-Reflexions-Rheographie und blutige Venendruckmessung beim Arbeitstest im Stehen.