Techniques & Measurements

This page lists techniques and measurements employed by
the rodentPACK jacket system.


Small adhesive electrodes are placed on the shaved chest of the rodent. Electrode’s cables are connected to the transmitter, housed in a jacket during recording sessions. Physiological signals are radio-transmitted to a receiver within 3 to 5 meters distance.

  • PR, QRS, QT, ST, RR intervals
  • QTc corrected values (available with a choice of 6 calculation modes)
  • ST-segment elevation
  • P, Q, R, S, Tneg. & Tpos. amplitudes
  • P, QRS, T wave areas
  • Arrhythmia detection
  • Heart Rate Variability


A 3-axis accelerometer inside the rodentPACK transmitter measures the acceleration in the x-, y- and z-axis.

Any movement of the subject head translates in variations in the x, y, z coordinates of acceleration.

Using the three individual axis signals, IOX2 acquisition software calculates a global acceleration, making it possible to derive information about the animal’s posture (standing on hind legs, on its side etc).

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