NDLI: Compressive tibiofemoral force during crouch gait.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Steele, Katherine M. Demers, Matthew S. Schwartz, Michael H. Delp, Scott L.
Description	Country affiliation: United States Author Affiliation: Steele KM ( Department of Mechanical Engineering, Stanford University, USA.)
Abstract	Crouch gait, a common walking pattern in individuals with cerebral palsy, is characterized by excessive flexion of the hip and knee. Many subjects with crouch gait experience knee pain, perhaps because of elevated muscle forces and joint loading. The goal of this study was to examine how muscle forces and compressive tibiofemoral force change with the increasing knee flexion associated with crouch gait. Muscle forces and tibiofemoral force were estimated for three unimpaired children and nine children with cerebral palsy who walked with varying degrees of knee flexion. We scaled a generic musculoskeletal model to each subject and used the model to estimate muscle forces and compressive tibiofemoral forces during walking. Mild crouch gait (minimum knee flexion 20-35°) produced a peak compressive tibiofemoral force similar to unimpaired walking; however, severe crouch gait (minimum knee flexion>50°) increased the peak force to greater than 6 times body-weight, more than double the load experienced during unimpaired gait. This increase in compressive tibiofemoral force was primarily due to increases in quadriceps force during crouch gait, which increased quadratically with average stance phase knee flexion (i.e., crouch severity). Increased quadriceps force contributes to larger tibiofemoral and patellofemoral loading which may contribute to knee pain in individuals with crouch gait.
File Format	HTM / HTML
ISSN	09666362
e-ISSN	18792219
DOI	10.1016/j.gaitpost.2011.11.023
Journal	Gait & Posture
Issue Number	4
Volume Number	35
Language	English
Publisher	Elsevier
Publisher Date	2012-04-01
Publisher Place	Great Britain (UK)
Access Restriction	Open
Subject Keyword	Research Support, N.i.h., Extramural Discipline Orthopedics Comparative Study Arthralgia Anthropometry Stress, Mechanical Gait Disorders, Neurologic Posture Knee Joint Etiology Physiology Severity Of Illness Index Research Support, U.s. Gov't, Non-p.h.s. Risk Assessment Complications Physiopathology Walking Biomechanical Phenomena Range Of Motion, Articular Models, Biological Adolescent Muscle, Skeletal Cerebral Palsy Cohort Studies
Content Type	Text
Resource Type	Article
Subject	Orthopedics and Sports Medicine Rehabilitation Biophysics Sports Science

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Stiff-knee gait in cerebral palsy: how do patients adapt to uneven ground?

Effect of hip angle on anterior hip joint force during gait.

Ankle range of motion is key to gait efficiency in adolescents with cerebral palsy.

Bilateral knee extensor disruption in severe crouch gait.

Can biomechanical variables predict improvement in crouch gait?

Muscle-tendon lengths according to sagittal knee kinematics in patients with cerebral palsy: differences between recurvatum and crouch knee.

Altered gait biomechanics and increased knee-specific impairments in patients with coexisting tibiofemoral and patellofemoral osteoarthritis.

The relationship between clinical measurements and gait analysis data in children with cerebral palsy.

Biomechanical and perceived differences between overground and treadmill walking in children with cerebral palsy.

Compressive tibiofemoral force during crouch gait.

Similar Documents

Stiff-knee gait in cerebral palsy: how do patients adapt to uneven ground?

Effect of hip angle on anterior hip joint force during gait.

Ankle range of motion is key to gait efficiency in adolescents with cerebral palsy.

Bilateral knee extensor disruption in severe crouch gait.

Can biomechanical variables predict improvement in crouch gait?

Muscle-tendon lengths according to sagittal knee kinematics in patients with cerebral palsy: differences between recurvatum and crouch knee.

Altered gait biomechanics and increased knee-specific impairments in patients with coexisting tibiofemoral and patellofemoral osteoarthritis.

The relationship between clinical measurements and gait analysis data in children with cerebral palsy.

Biomechanical and perceived differences between overground and treadmill walking in children with cerebral palsy.

Compressive tibiofemoral force during crouch gait.