Title :
A study of postural sway during pregnancy through spectral analysis of stabilometric signals
Author :
Oliveira, Liliam F. ; Simpson, David M. ; Nadal, Jurandir
Author_Institution :
Biomed. Eng. Program, Fed. Univ. of Rio de Janeiro, Brazil
fDate :
31 Oct-3 Nov 1996
Abstract :
During pregnancy, painful problems of posture are common. With the alterations in weight and weight-distribution, changes in body balance may also be expected. In the present work, postural sway of normal pregnant women was analysed through stabilometric exams. Taking parameters of power in frequency bands in the forward/backward and lateral directions, it was found that alterations only occurred below 0.5 Hz under eyes closed/feet apart and eyes open/feet together protocols. The authors conclude that the mechanisms of balance control generally seem able to compensate body sway for the physical changes during pregnancy
Keywords :
biomechanics; medical signal processing; spectral analysis; 0.5 Hz; balance control mechanisms; body sway compensation; eyes closed; eyes open; feet apart; feet together; forward/backward direction; human body; lateral direction; normal pregnant women; painful problems; postural sway; pregnancy; stabilometric exams; stabilometric signals spectral analysis; upright position; weight-distribution alterations; Analysis of variance; Electrooptic deflectors; Eyes; Frequency; Gravity; Low pass filters; Pregnancy; Protocols; Spectral analysis; Testing;
Conference_Titel :
Engineering in Medicine and Biology Society, 1996. Bridging Disciplines for Biomedicine. Proceedings of the 18th Annual International Conference of the IEEE
Conference_Location :
Amsterdam
Print_ISBN :
0-7803-3811-1
DOI :
10.1109/IEMBS.1996.651874
