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Using a proprietary local bioimpedance analyzer that applied current at a frequency of 10 kHz we studied the changes in the absolute value and the phase angle of the arm's impedance when we applied a pressure with a pressure cuff located in the arm of 22 voluntaries (11 men and 11 women) aged between 21 and 44 years old. A direct proportionality between variations in the blood volume after the application of the pressure pulse was expected, according to the literature. Combining the observed changes in impedance with the mechanical compliance of the blood vessels, a relationship between pressure changes, impedance changes and haematocrit can be established. We also studied the changes in the impedance when a force was produced by the hand. The force strength was measured with a load cell. We observed a direct proportionality between the absolute value of the admittance and the applied pressure in the cuff, within a certain range, as expected. However, we noticed a temporal delay in the response of the admittance module variation with respect to the increase in the pressure of the cuff. The mean value of the admittance module measured without the application of pressure was 15.4 mS ± 1.6 mS (mean ± S.D.) for men and 11.7 mS ± 1.9 mS for women. [ABSTRACT FROM AUTHOR]