NDLI: Walkway surface heights and ground reaction forces

Content Provider	IEEE Xplore Digital Library
Author	Schieb, D.A.
Copyright Year	1995
Description	Author affiliation: Sch. of Phys. Therapy, Texas Woman's Univ., Houston, TX, USA (Schieb, D.A.)
Abstract	Falling is a leading cause of morbidity and mortality in the U.S. Several factors can contribute to injuries resulting from tripping, slipping and falling during locomotion such as surface condition, transitions and the degree of walkway evenness. Because walkway unevenness has been largely unexamined, the purpose of this study was to evaluate the extent to which gait kinetics change with uneven walkway surface heights. In this study, subjects walked at a constant velocity over a walkway, whose surface for various trials was positioned above, below, and level with respect to multicomponent force measuring plate. Ground reaction forces (GRF) were recorded from a single step when the subject stepped up or down onto the force plate during gait. Averaged trials from three step-up and two step-down heights were compared to level gait trials. GRF parameters included peak force components, center of pressure and temporal measures. Significant differences in GRF measures were found between the level condition and step-up heights >2.5 cm and step-down heights >-1.5 cm. No differences were found between the level condition and a step-up height of 0.7 cm. The results suggest that a walkway unevenness of >2.5 cm step-up and >1.5 cm step-down may contribute to initiating a trip, stumble or fall since the GRF are significantly altered with these conditions. However, negotiating a step-up of <2.5 cm or step-down of <0.7 cm produces gait kinetic measures similar to walking on a level surface, and therefore may not predispose one to a trip or stumble.
Starting Page	175
Ending Page	178
File Size	423002
Page Count	4
File Format	PDF
ISBN	0780320832
DOI	10.1109/SBEC.1995.514471
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1995-04-07
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Force measurement Kinetic theory Legged locomotion Friction Medical treatment Injuries Position measurement Velocity measurement Pressure measurement Humans
Content Type	Text
Resource Type	Article

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

Ambulatory measurement of ground reaction forces

Simple Virtual Slip Force Sensor for walking biped robots

Calculation of Joint Reaction Forces in the Equine Distal Forelimb during Walking and Trotting

Ground Reaction Forces During Termination Of Human Gait

Adaptive Estimation of Friction Forces under a Sector Condition

Real-time detection of reaction forces during gait on a ground equipped with a large force platform

Vibration-Induced Friction Control for Walkway Locomotion Interface

Ambulatory measurement of ground reaction forces

Modeling of vertical ground reaction forces during double stance phase of the gait cycle for real-time treadmill measurements

Walkway surface heights and ground reaction forces

Similar Documents

Ambulatory measurement of ground reaction forces

Simple Virtual Slip Force Sensor for walking biped robots

Calculation of Joint Reaction Forces in the Equine Distal Forelimb during Walking and Trotting

Ground Reaction Forces During Termination Of Human Gait

Adaptive Estimation of Friction Forces under a Sector Condition

Real-time detection of reaction forces during gait on a ground equipped with a large force platform

Vibration-Induced Friction Control for Walkway Locomotion Interface

Ambulatory measurement of ground reaction forces

Modeling of vertical ground reaction forces during double stance phase of the gait cycle for real-time treadmill measurements

Walkway surface heights and ground reaction forces