Effects of subject position on balance platform measurements. J Biomech Eng 1981 Aug;103(3):213-6
Date
08/01/1981Pubmed ID
7278201DOI
10.1115/1.3138281Scopus ID
2-s2.0-0019606477 (requires institutional sign-in at Scopus site) 4 CitationsAbstract
The high cost of commercially available force plates instrumented to quantify postural sway can be prohibitive to both research and clinical institutions. Therefore custom plate design and construction within the institutional environment is not uncommon. Some plate designs, however, may give erroneous measurements depending upon subject position. We report here on the existence of a kern boundary on the plate surface. Loads placed inside this boundary result in support compression, while those placed outside cause at least one support to experience tension. The findings indicate that the type of force transducer used for corner support (unidirectional or bidirectional), the type of connection between the plate and transducers, plate weight, subject weight, plate dimensions and transducer preloads are all critical to accurate measurements.
Author List
Harris GF, Salamon NJ, Weber RCAuthors
Gerald F. Harris Emeritus Professor in the Orthopaedic Surgery department at Medical College of WisconsinGerald Harris PhD Director in the Orthopaedic Research Engineering Center (OREC) department at Marquette University
MESH terms used to index this publication - Major topics in bold
Biomechanical PhenomenaBiomedical Engineering
Humans
Movement
Posture
Weights and Measures
