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Validation of Fitts' Law with stroke patients' reaching task ; potential application in robot-aided upper limb rehabilitation

Title
Validation of Fitts' Law with stroke patients' reaching task ; potential application in robot-aided upper limb rehabilitation
Translated Title
뇌졸중 환자의 도달 운동을 통한 피츠의 법칙 검증; 로봇 기반 상지 재활의 가능성 있는 응용
Authors
Kim, Jong Bum
DGIST Authors
Kim, Jong Bum; Kim, Jong Hyun
Advisor(s)
Kim, Jong Hyun
Co-Advisor(s)
Jang, Sung Ho
Issue Date
2015
Available Date
2015-07-19
Degree Date
2015. 8
Type
Thesis
Keywords
reaching taskFitts’ Lawrobot-aidedrehabilitationstroke피츠의 법칙도달운동로봇기반재활뇌졸중
Abstract
This study deal with validation of fitts’ law with stroke patients’ reaching task. Fitts’ Law is a linear re-lationship between movement time from start position to target position and Index of Difficulty (ID). ID is consisted of distance from start position to target position (A) and target width (W). Fitts’ Law is a one-dimensional model of reaching movement, is commonly applied to two-dimensional reaching movement. By using fitts’ law, it is possible to indicate the performance of reaching movement quantitatively. If fitts’ law can be applied to stroke patients, it is easy to evaluate their reaching movement. It is possible to know intuitively by comparing between before therapy and after therapy, therefore it is comfortable method to assess stroke patients’ reaching performance. It has advantage that therapy and assessment can be done at the same time by changing ID. Also, there are various possible targets in same ID in order to provide person-alized therapy to patients and the interest subjects and prevent the feeling of boredom and learning effect. ⓒ 2015 DGIST
Table Of Contents
Ⅰ. INTRODUCTION 1-- 1.1 Background 1-- 1.2 Fitts’ Law 3-- 1.2.1 Extending Fitts’ law to two dimensional space 3-- 1.3 Goal of the study 4-- Ⅱ. METHOD 5-- 2.1 Participants 5-- 2.2 Apparatus 5-- 2.2.1 Haptic Master 5-- 2.2.2 Trunk fixed Chair 7-- 2.3 Experimental Protocol 7-- 2.4 Data Analysis 8-- Ⅲ. RESULT 9-- 3.1 Healthy Subjects 9-- 3.1.1 Validation of Fitts’ Law 9-- 3.1.2 Difference among directions 11-- 3.2 Stroke Patients 13-- 3.2.1 Change of r^2 as experiment was repeated 13-- 3.2.2 Change of r^2 along directions 18-- 3.2.3 Change of movement time along directions 22-- Ⅳ. DISCUSSION 26-- 4.1 Healthy Subjects 26-- 4.2 Stroke Patients 26-- Ⅴ. CONCLUSION 31
URI
http://dgist.dcollection.net/jsp/common/DcLoOrgPer.jsp?sItemId=000002066749
http://hdl.handle.net/20.500.11750/1407
DOI
10.22677/thesis.2066749
Degree
Master
Department
Robotics Engineering
University
DGIST
Files:
Collection:
Robotics EngineeringThesesMaster


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