title: [Readjustment of peripheral factors during the unsteady-state phase of dynamic muscular exercise].
abstract: The behaviour of the ratio: oxygen extraction (total peripheral resistance (DAV/TPR) in a group of untrained healthy young male students has been bloodless investigated during the unsteady-state phase of the dynamic muscular exercise (2.5 watt/Kg). The results obtained have shown that the kinetics of the ratio, from a resting value of 3.40 ml O2 . min-1 . mmHg-1 to a figure of 17.62 (steady-state) doesn't follow a step function. During the first 30 seconds the percentual increase of the ratio falls to 0.45, becomes 1.5 thirty seconds later and there this exponentially drops down to a value of 1. The observed behaviour agrees with experimental findings of other authors.
mesh_terms: D000293:Adolescent; D000328:Adult; D006801:Humans; D007700:Kinetics; D008297:Male; D010101:Oxygen Consumption; D005082:Physical Exertion; D014655:Vascular Resistance
vernacular_title: Riaggiustamento del "fattore periferico" nella fase di "unsteady-state" dell'esercizio muscolare dinamico.