Paper Information

Title: 

STRATEGIES APPLIED TO CONTROL GAIT INITIATION AFTER STANDING-UP FROM A SEATED POSITION

Type: PAPER
Author(s): BAHRAMI FARIBA*,PATLA AFTAB
 
 *DEPARTMENT OF ELECTRICAL AND COMPUTER ENGINEERING, FACULTY OF ENGINEERING, UNIVERSITY OF TEHRAN
 
Name of Seminar: IRANIAN CONFERENCE ON BIOMEDICAL ENGINEERING
Type of Seminar:  CONFERENCE
Sponsor:  ANJOMANE MOHANDESI PEZESHKI IRAN
Date:  2004Volume 11
 
 
Abstract: 

IN THIS STUDY, WE HAVE INVESTIGATED THE COMBINED TASK OF SIT-TO-WALK (STW) UNDER DIFFERENT TIME CONSTRAINTS. STW CAN BE VIEWED AS GAIT INITIATION (GI) AFTER/WHILE RISING FROM A SEAT (SIT-TO-STAND: STS). SIX HEALTHY ADULTS PERFORMED 100 STS AND STW TRIALS UNDER DIFFERENT TIME CONSTRAINTS. MOVEMENTS WERE INITIATED FOLLOWING A VISUAL CUE. PARTICIPANTS WERE INSTRUCTED TO CHANGE THE FINAL TASK FROM STANDING TO WALKING OR FROM WALKING TO STANDING DEPENDING ON A SECOND VISUAL CUE WHICH MIGHT BE GIVEN AFTER THE FIRST ONE. FOR ALL COMBINED TASKS INCLUDING A GI COMPONENT, IT WAS OBSERVED THAT THE ANTICIPATORY POSTURAL ADJUSTMENT, WHICH IS A CHARACTERISTIC OF GI FROM STANDING POSTURE, WAS PRESENT AFTER SEAT-OFF WITH SOME MODIFICATIONS. COMPARISON OF DIFFERENT COMBINED TASKS WITH ELEMENTARY TASKS OF STS AND GI SHOWED THAT, STW WAS NOT PERFORMED MERELY AS A SUCCESSIVE COMBINATION OF TWO ELEMENTARY TASKS OF STS AND GI. RATHER, SOME TERMINAL CHARACTERISTICS OF STS AND SOME INITIAL CHARACTERISTICS OF GI WERE MERGED TOGETHER. THE MERGING SCHEME WAS TO A LARGE EXTENT INDIVIDUAL-DEPENDENT.

 
Keyword(s): SIT-TO-WALK, GAIT INITIATION, COMBINED TASK, ANTICIPATORY POSTURE ADJUSTMENT
 
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