Effects on the center of gravity and foot pressure contribution to standing balance associated with aging in healthy adults

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Bibliographic Details
Title translated into German:Auswirkungen auf den Koerperschwerpunkt und die Mitwirkung des Fussdrucks auf das Gleichgewicht im Verlauf des Alterungsprozesses bei gesunden Erwachsenen
Author:Tanaka, T.; Takeda, H.; Izumi, T.; Ino, S.; Ifukube, T.
Published in:Journal of human movement studies
Published:34 (1998), 6 , S. 233-253, Lit.
Format: Publications (Database SPOLIT)
Publication Type: Journal article
Media type: Print resource
Online Access:
Identification number:PU199903307473

Author's abstract

The purpose of this study was to examine the limitation of the head and lumbar movements in relation to the center of gravity which is needed to maintain standing balance with aging. The subjects of the study were 22 healthy volunteers. The subjects were divided into two age categories, the young group (mean 22.6ñ3.2 years, mean weight 59.3ñ3.2 kg); and the elderly group (mean 70.6ñ3.0 years, mean weight 56.4ñ7.7 kg). The instruments for measuring the movements of the lumbar and head and the center of pressure (COP) were a three-dimensional motion analysis system and a force plate. In addition, the peak foot pressure was measured during standing using the F-Scan system. The subjects were first asked to stand relaxed for 10sec. They then shifted from the starting position to the four directions (sways); anterior, posterior, right and left. They tried to maintain standing balance at the maximal distance position for each sway as much as possible for 10sec. Analyzing parameters was performed by measuring the average maximal linear displacement (cm) of the head and lumbar markers, the COP (cm), and the peak foot pressure (percent of body weight per squared centimeters; BW%/cm2) in each subject. The data of the young group for lumbar maximal displacement were greater than those of the elderly group in the anterior, posterio, and lateral sways. A significant difference between the young and elderly data was found in the posterior sway. According to the data of the head's maximal displacement, the elderly data were greater than the young data in all sways except for the anterior side. For the data of peak foot pressure in the posterior sway, the elderly group's data was greater than the young group's data. The forefoot area data of the young group was significantly greater than that of the elderly group and the heel area data of the elderly was significantly greater than that of the young group in the right sway. The results suggest that the maximal displacement of head and lumbar positions and the toe's activity in the forefoot are all important factors associated with the center of gravity in healthy adults. These variables could be made available as a clinical to test for the degree of poor balance. Verf.-Referat