Errors in alignment of center of pressure and foot coordinates affect predicted lower extremity torques

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Title translated into German:Fehler in der Abstimmung des Druckzentrums und der Fusskoordinaten beeinflussen die Kraftmomentberechnungen an der unteren Extremitaet
Author:McCaw, Steven T.; DeVita, Paul
Published in:Journal of biomechanics
Published:28 (1995), 8 , S. 985-988, Lit.
Format: Publications (Database SPOLIT)
Publication Type: Journal article
Media type: Print resource
Language:English
ISSN:0021-9290, 1873-2380
Keywords:
Online Access:
Identification number:PU199506101666
Source:BISp
id PU199506101666
bisp-collection db
format Literatur
last_indexed 2011-05-31T15:54:29Z
first_indexed 2001-07-24T13:22:59Z
publication_source BISp
subformat Zeitschriftenartikel
hierarchy_top_id JO00000000723
hierarchy_parent_id JOI19952e1b0000723
hierarchy_top_title Journal of biomechanics
hierarchy_parent_title Journal of biomechanics, 1995, 8
is_hierarchy_id PU199506101666
is_hierarchy_title Errors in alignment of center of pressure and foot coordinates affect predicted lower extremity torques
hierarchy_sequence 0985
recordtype bisparticle
publishDate 1995
publishDate_facet 1995
language eng
title Errors in alignment of center of pressure and foot coordinates affect predicted lower extremity torques
spellingShingle Errors in alignment of center of pressure and foot coordinates affect predicted lower extremity torques
Biomechanik
Ganganalyse
Kinematik
Kraftmessplatte
Kraftmessung
Messfehler
Messgenauigkeit
Messverfahren
Stützphase
title_sort errors in alignment of center of pressure and foot coordinates affect predicted lower extremity torques
title_short Errors in alignment of center of pressure and foot coordinates affect predicted lower extremity torques
title_alt Fehler in der Abstimmung des Druckzentrums und der Fusskoordinaten beeinflussen die Kraftmomentberechnungen an der unteren Extremitaet
title_alt_lang deu
media_type Gedruckte Ressource
city New York (N.Y.)
abstract The purpose of the study was to quantify the effect of errors in spatial alignment between the center of pressure recorded from a force platform and the coordinates of the foot recorded from film on resultant joint torques in the lower extremity during the stance phase of gait. Two-dimensional kinematic and kinetic data from eight subjects performing walking and running were analyzed using inverse dynamics with the obtained center of pressure values and with +/- 0.5 and +/- 1.0 cm shifts in the anteroposterior location of the center of pressure under the support foot. Shifting the center of pressure posteriorly increased the flexor (dorsiflexor) torques at the hip and ankle and decreased the extensor (plantarflexor) torques at these joints. This shift also caused an increase in the extensor and a decrease in the flexor torques at the knee. Shifting the center of pressure anteriorly caused the opposite effects at each joint. The +/- 0.5 and +/- 1.0 cm shifts in the location of the center of pressure caused, on average, 7 and 14% changes, respectively, in maximum joint torque and angular impulse values. Relative transition times between flexor and extensor torques were either increased or decreased, on average, by 7 and 13%, respectively for the two conditions over all trials. Based on these results, it is concluded that due to potential errors in the spatial alignment of kinetic and kinematic data, joint torques in the literature on gait should be considered as approximations of the true values. Verf.-Referat
abstract_lang eng
abstract_type author
author2 McCaw, Steven T.
DeVita, Paul
author_facet McCaw, Steven T.
DeVita, Paul
author2-role Autor
Autor
author_author_facet McCaw, Steven T.
DeVita, Paul
spelling McCaw, Steven T.
DeVita, Paul


0021-9290
1873-2380
218076-5
JBMCB
Biomechanik
Ganganalyse
Kinematik
Kraftmessplatte
Kraftmessung
Messfehler
Messgenauigkeit
Messverfahren
Stützphase
biomechanics
force measurement
force platform
gait analysis
kinematics
measurement accuracy
measurement error
measurement method
support phase
Bestimmung
Messmethode
Messung
Genauigkeit
Kraftplattform
Bewegung, physikalische
Merkmal, biomechanisches
Biokinematik
Prinzip, biomechanisches
force plate
strength measurement
Errors in alignment of center of pressure and foot coordinates affect predicted lower extremity torques
PU199506101666
199506101666
issn 0021-9290
1873-2380
zdb 218076-5
coden JBMCB
topic Biomechanik
Ganganalyse
Kinematik
Kraftmessplatte
Kraftmessung
Messfehler
Messgenauigkeit
Messverfahren
Stützphase
topic_facet Biomechanik
Ganganalyse
Kinematik
Kraftmessplatte
Kraftmessung
Messfehler
Messgenauigkeit
Messverfahren
Stützphase
topic_en biomechanics
force measurement
force platform
gait analysis
kinematics
measurement accuracy
measurement error
measurement method
support phase
topic_en_facet biomechanics
force measurement
force platform
gait analysis
kinematics
measurement accuracy
measurement error
measurement method
support phase
synonym Bestimmung
Messmethode
Messung
Genauigkeit
Kraftplattform
Bewegung, physikalische
Merkmal, biomechanisches
Biokinematik
Prinzip, biomechanisches
synonym_en force plate
strength measurement
journal_facet Journal of biomechanics
container_title Journal of biomechanics
container_volume 28
container_issue 8
container_start_page S. 985-988
has_references 1
institution BISp
journal_fac JO00000000723
journal_year 1995
journal_issue 8
_version_ 1663233693192290304
score 13,233966