Human reach posture prediction based on psychophysical discomfort

Eui Seung Jung, Jaeho Choe

Research output: Contribution to journalArticle

75 Citations (Scopus)

Abstract

A man model is a useful design tool for the evaluation of man-machine systems and products with less time delay and cost, specifically at the early stage of design. For a man model to be truly useful, it must be integrated with a proper posture prediction model, especially, an arm reach prediction model. In this study, a regression model to Predict the perceived discomfort with respect to the joint movement was developed using a central composite design based on the response surface method. Joint angles of the upper body with seven degrees of freedom and the weight of a load were treated as independent variables while the perceived discomfort measured using a magnitude estimation technique was used for the response variable. The perceived discomfort in the category scale and the normalized EMG of six muscles were also collected. A three-dimensional reach posture prediction model using an inverse kinematics technique was then developed, based on the prediction of perceived discomfort. The model predicts the posture by selecting the minimum discomfort configuration among feasible body postures to reach a target point. The reach posture prediction model developed in this study was found to simulate human arm reach posture accurately and the discomfort prediction model will help understand the human arm reach movement. Relevance to industry. Accurate reach posture prediction will be a useful function for any ergonomic evaluation. The model effectively assists the process of design and evaluation of man-machine systems and products with less time delay and cost.

Original languageEnglish
Pages (from-to)173-179
Number of pages7
JournalInternational Journal of Industrial Ergonomics
Volume18
Issue number2-3
DOIs
Publication statusPublished - 1996 Sep 1
Externally publishedYes

Fingerprint

Posture
Man-Machine Systems
man-machine system
Man machine systems
Joints
Costs and Cost Analysis
Time delay
Human Engineering
evaluation
Biomechanical Phenomena
Inverse kinematics
Industry
estimation procedure
Ergonomics
costs
Weights and Measures
Muscles
ergonomics
Muscle
Costs

Keywords

  • Inverse kinematics
  • Posture prediction
  • Psychophysical discomfort
  • Reach

ASJC Scopus subject areas

  • Industrial and Manufacturing Engineering
  • Safety, Risk, Reliability and Quality
  • Human Factors and Ergonomics

Cite this

Human reach posture prediction based on psychophysical discomfort. / Jung, Eui Seung; Choe, Jaeho.

In: International Journal of Industrial Ergonomics, Vol. 18, No. 2-3, 01.09.1996, p. 173-179.

Research output: Contribution to journalArticle

@article{92e6ba7f231d472f884e446824a19c26,
title = "Human reach posture prediction based on psychophysical discomfort",
abstract = "A man model is a useful design tool for the evaluation of man-machine systems and products with less time delay and cost, specifically at the early stage of design. For a man model to be truly useful, it must be integrated with a proper posture prediction model, especially, an arm reach prediction model. In this study, a regression model to Predict the perceived discomfort with respect to the joint movement was developed using a central composite design based on the response surface method. Joint angles of the upper body with seven degrees of freedom and the weight of a load were treated as independent variables while the perceived discomfort measured using a magnitude estimation technique was used for the response variable. The perceived discomfort in the category scale and the normalized EMG of six muscles were also collected. A three-dimensional reach posture prediction model using an inverse kinematics technique was then developed, based on the prediction of perceived discomfort. The model predicts the posture by selecting the minimum discomfort configuration among feasible body postures to reach a target point. The reach posture prediction model developed in this study was found to simulate human arm reach posture accurately and the discomfort prediction model will help understand the human arm reach movement. Relevance to industry. Accurate reach posture prediction will be a useful function for any ergonomic evaluation. The model effectively assists the process of design and evaluation of man-machine systems and products with less time delay and cost.",
keywords = "Inverse kinematics, Posture prediction, Psychophysical discomfort, Reach",
author = "Jung, {Eui Seung} and Jaeho Choe",
year = "1996",
month = "9",
day = "1",
doi = "10.1016/0169-8141(95)00080-1",
language = "English",
volume = "18",
pages = "173--179",
journal = "International Journal of Industrial Ergonomics",
issn = "0169-8141",
publisher = "Elsevier",
number = "2-3",

}

TY - JOUR

T1 - Human reach posture prediction based on psychophysical discomfort

AU - Jung, Eui Seung

AU - Choe, Jaeho

PY - 1996/9/1

Y1 - 1996/9/1

N2 - A man model is a useful design tool for the evaluation of man-machine systems and products with less time delay and cost, specifically at the early stage of design. For a man model to be truly useful, it must be integrated with a proper posture prediction model, especially, an arm reach prediction model. In this study, a regression model to Predict the perceived discomfort with respect to the joint movement was developed using a central composite design based on the response surface method. Joint angles of the upper body with seven degrees of freedom and the weight of a load were treated as independent variables while the perceived discomfort measured using a magnitude estimation technique was used for the response variable. The perceived discomfort in the category scale and the normalized EMG of six muscles were also collected. A three-dimensional reach posture prediction model using an inverse kinematics technique was then developed, based on the prediction of perceived discomfort. The model predicts the posture by selecting the minimum discomfort configuration among feasible body postures to reach a target point. The reach posture prediction model developed in this study was found to simulate human arm reach posture accurately and the discomfort prediction model will help understand the human arm reach movement. Relevance to industry. Accurate reach posture prediction will be a useful function for any ergonomic evaluation. The model effectively assists the process of design and evaluation of man-machine systems and products with less time delay and cost.

AB - A man model is a useful design tool for the evaluation of man-machine systems and products with less time delay and cost, specifically at the early stage of design. For a man model to be truly useful, it must be integrated with a proper posture prediction model, especially, an arm reach prediction model. In this study, a regression model to Predict the perceived discomfort with respect to the joint movement was developed using a central composite design based on the response surface method. Joint angles of the upper body with seven degrees of freedom and the weight of a load were treated as independent variables while the perceived discomfort measured using a magnitude estimation technique was used for the response variable. The perceived discomfort in the category scale and the normalized EMG of six muscles were also collected. A three-dimensional reach posture prediction model using an inverse kinematics technique was then developed, based on the prediction of perceived discomfort. The model predicts the posture by selecting the minimum discomfort configuration among feasible body postures to reach a target point. The reach posture prediction model developed in this study was found to simulate human arm reach posture accurately and the discomfort prediction model will help understand the human arm reach movement. Relevance to industry. Accurate reach posture prediction will be a useful function for any ergonomic evaluation. The model effectively assists the process of design and evaluation of man-machine systems and products with less time delay and cost.

KW - Inverse kinematics

KW - Posture prediction

KW - Psychophysical discomfort

KW - Reach

UR - http://www.scopus.com/inward/record.url?scp=0030248974&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0030248974&partnerID=8YFLogxK

U2 - 10.1016/0169-8141(95)00080-1

DO - 10.1016/0169-8141(95)00080-1

M3 - Article

AN - SCOPUS:0030248974

VL - 18

SP - 173

EP - 179

JO - International Journal of Industrial Ergonomics

JF - International Journal of Industrial Ergonomics

SN - 0169-8141

IS - 2-3

ER -