Enhancements in The Accuracy of The Center of Pressure (COP) Determined With Piezoelectric Force Plates Are Dependent on The Load Distribution  

Oleh:

Schmiedmayer, Heinz-Bodo ; Kastner, Josef

Jenis: Article from Bulletin/Magazine
Dalam koleksi: Journal of Biomechanical Engineering vol. 122 no. 5 (2000), page 523-527.
Topik: distribution; enhancements; accuracy; center of pressure; piezoelectric; forces plates; load distribution

Ketersediaan

Perpustakaan Pusat (Semanggi) Nomor Panggil: JJ52.2 Non-tandon: 1 (dapat dipinjam: 0) Tandon: tidak ada

Lihat Detail Induk

Isi artikel

Errors up to ± 30 mm in determining the COP with piezoelectric force plates have been reported in the literature. To compensate for these errors, correction formulas were proposed, based on measurements with single point loads. In this paper, it will be shown that the errors in the COP depend on the load distribution. Two examples are presented : (1) simulated balance study, and (2) different pressure patterns during walking. Accurate corrections can only be made for forces distributed over a small area. Errors are expected to be overcompensated if there are only a few pressure peaks separated by large distances. These errors can be as large as the statistical errors (5.8 ± 3.7 mm) after compensation. For certain situations, it is probably better not to use correction formulas.

Opini Anda

Klik untuk menuliskan opini Anda tentang koleksi ini!

Kembali