Comparison between CV4 and EV4 - Osteopathic Research

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4.1.3.3 Fastening of sensors
4.1.3.3.1 Multisensor fastening
The test subject’s hands are to be cleaned with soap prior to the test and the ring
finger of the non-dominating hand wiped with alcohol. The multisensor is
attached to the inner side of the non-dominating hand’s 4 th finger, as fingers with
strongly calloused skin are not adequate for this purpose.
The inner side of the finger is placed on the multisensor and pushed forward to
the guiding border. The guiding border is used to guarantee a definite
positioning of the finger on the sensor.
The fastening belt is placed around the finger, slightly placed over the finger and
zipped shut so that the finger’s surface fully lies on the sensor.
The finger may at no time be tied too tightly as this will cause wrong
measurement values to be taken – pressure that is too strong will cut off blood
circulation.
The test subject’s hand should be positioned as to have finger and sensor up in
the air (they shall not rest against something). Hand or finger movements are to
be avoided as they could compromise results.
4.1.3.3.2 Breathing sensors positioning
The distance between the active surface of the breathing surface and any area
from which breathing movements are to be taken should be approximately 15-
20cm and positioned parallel to the thorax or abdomen. In order to obtain
measurement results that can be reproduced, one must always use the same
distance.
A distance of 17cm is used for this experiment. Breathing sensor 1 is located at
navel level, breathing sensor 2, the width of a hand lower than the sternoclavicular
joint. The same clothing should always be worn for different
measurements as varying fabrics reflect light differently. Strong prints or black
Margit Grill / 2006