Vol.1, No 6, 1999 pp. 1- 13
UDC 796.421
Scientific Paper
BUTE'S ULTRASOUND-BASED MEASURING TECHNIQUE
AND MODEL FOR GAIT ANALYSIS
Laszlo Kocsis1, Rita M. Kiss1,
Zsolt Knoll2, Mihaly Jurak1
1Department of Applied Mechanics, Budapest
University of Technology and Economics, Hungary
2MEDICaMENTOR Foundation, Budapest,
Hungary
Abstract. The paper focuses on the presentation of a new 3D motion
analysis technique for treadmill walking. An ultrasound-based 3D measurement
system and a developed measuring arrangement were used to measure and determine
gait parameters during treadmill walking. The model considers each limb
segment to be a rigid body, linked to each other by a joint. This paper
also presents a new 3D motion analysis software package for treadmill walking
and introduce the DataManager developed. We studied knee kinematics and
temporal-distance gait measurement parameters (step length, stride length,
stride width, etc.) to be obtained from treadmill walking. These measurements
were highly correlated with and not significantly different to those in
literature. Treadmill walking allows for the analysis of several cycles
of each subject. On the basis of the analysis the standard deviation of
temporal-gait parameters and the knee kinematics data of each subject can
be established. The 3D movement analysis system presented is a suitable
and standardized procedure for quick gait analysis.
Key words: motion analysis, gait analysis, knee joint, treadmill
walking
BUTS-OVA ULTRAZVUČNA OSNOVA
MERNE TEHNIKE I MODEL ZA ANALIZU HODA
Rad se fokusiran na prezentaciju nove 3D analize tehnike hodanja na tredmilu.
Ultrazvučna osnova 3D sistema merenja i razvijeni aranžman kretanja su
korišćeni da izmere i utvrde parametre hoda tokom hodanja na tredmilu.
Model podrazumeva da je svaki rasčlanjeni segment uda odvojen deo, povezan
jedan sa drugim zglobovima. Ovaj rad takođe prikazuje novi paket softvera
za 3D analizu kretanja hodanjem na tredmilu koji je Datamenadžer razvio.
Mi smo proučavali kinematiku kolena i vremensku razliku merenih parametara
hoda (dužina koraka, dugačak korak, širinu koračanja, itd) dobijenih hodanjem
na tredmilu. Ova merenja su visoko korelantna i ne značajno različita od
onih u literaturi. Hodanje na tredmilu omogućava analizu u nekoliko ciklusa
za svakog subjekta. Na osnovu analize kod svakog subjekta se može utvrditi
standardna devijacija parametara vremena hoda i podataka kinematike kolena.
3D sistemska analiza pokreta prezentovana je kao odgovarajuća i standardna
procedura za analizu brzog hoda.
Ključne reči: analiza pokreta, analiza hoda, koleni zglob, hod
na tredmilu
