[Respirometry by bipolar electric transthoracic impendance].
In a population of ten young normal male subjects (average height of 174.2 cm +/- 3.8, average weight of 70.2 kg +/- 6.16), which was subjectively classified as mainly ectomorph (slightly biased towards the mesomorph type) a good correlation was found between the transthoracic impedance changes due to normal respiratory movements and tidal volume (average r of 0.963 +/- 0.034) and a mean coefficient b1 of 3.64 ohms/liter +/- 1.82. For equal volume, inspiratory and expiratory movements, on the average, produced impedance changes with no significant difference (p less than 0.55). Attempts to quantitatively correlate the coefficient b1 (ohms/liter) with the anthropometric parameters did not produce any consistent result.
D001824:Body Constitution; D002307:Cardiography, Impedance; D006801:Humans; D008297:Male; D010992:Plethysmography, Impedance; D013147:Spirometry / Q000379:methods*
Respirometriá por impedancia eléctrica transtorácica bipolar.