Posturography Changes During Pregnancy

The subjects will be tested at enrollment and during weeks 20, 24, 28, 32, 36, 40 of their
pregnancy, as well every 4 weeks postpartum up to 6 months. The following protocol will be
used:

1. Subjects will also be asked to answer a short health questionnaire.

2. The following data will be recorded each time: height, minimum stance width,
circumference measurements of the chest, abdomen, hip and each thigh as well as a supine
fundal height. A full body side-profile photo was also taken to determine the curvature
of the spine.

3. A session questionnaire will be used to determine if the subject had fallen or noticed
any changes in their daily activity.

4. In a seated position, the following measurements will be recorded: 1-minute heart rate
variability (HRV) with paced breathing, temporal scan body temperature, respiration
rate, heart rate, blood pressure and SpO2 (these last three will be measured
bilaterally).

5. Subject will undergo posturography testing using the modified Clinical Testing of
Sensory Integration in Balance (mCTSIB) protocol: four 30 s tests in the following
conditions: eyes open on a rigid surface (NSEO), eyes closed on a rigid surface (NSEC),
eyes open on a compliant surface (PSEO), and eyes closed on a compliant surface (PSEC).

6. At the end of the posturography testing, heart rate, blood pressure and SpO2 will be
re-measured bilaterally in the standing and then seated positions, as will be the seated
HRV.

Inclusion Criteria:

- healthy women less than 20 weeks pregnant

Exclusion Criteria:

- women affected by any pathology and/or more than 20 weeks pregnant