ergonomic evaluation of work and workstation design of sugarcane juice vendors

207 Pages·2013·4.59 MB·English

ERGONOMIC EVALUATION OF WORK AND
WORKSTATION DESIGN OF SUGARCANE
JUICE VENDORS

By

D. KRISHNA PRIYA
B.Sc. (Home Science)

THESIS SUBMITTED TO THE ACHARYA N.G.RANGA
AGRICULTURAL UNIVERSITY IN PARTIAL FULFILMENT OF
THE REQUIREMENTS FOR THE AWARD OF THE
DEGREE OF

MASTER OF SCIENCE
IN THE FACULTY OF HOME SCIENCE

CHAIRPERSON: Dr. Y. VIJAYA LAKSHMI
DEPARTMENT OF RESOURCE MANAGEMENT &
CONSUMER SCIENCES
COLLEGE OF HOME SCIENCE
SAIFABAD, HYDERABAD – 500 004
ACHARYA N. G. RANGA AGRICULTURAL UNIVERSITY
2013
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CERTIFICATE

Ms. D. KRISHNA PRIYA has satisfactorily prosecuted the course of research
and that thesis entitled “ERGONOMIC EVALUATION OF WORK AND WORK
STATION DESIGN OF SUGARCANE JUICE VENDORS” submitted is the result
of original research work and is of sufficiently high standard to warrant its presentation
to the examination. I also certify that neither the thesis nor its part thereof has been
previously submitted by her for a degree of any University.

Place: Hyderabad Y. VIJAYA LAKSHMI
Chairperson
Date:

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CERTIFICATE

This is to certify that the thesis entitled “ERGONOMIC EVALUATION
OF WORK AND WORKSTATION DESIGN OF SUGARCANE JUICE
VENDORS” submitted in partial fulfillment of the requirements for the degree of
„Master of Science in Home Science‟ of the Acharya N. G. Ranga Agricultural
University, Hyderabad is a record of the bonafide original research work carried out by
Ms. D. KRISHNA PRIYA under our guidance and supervision.
No part of the thesis has been submitted for any other degree or diploma. The
published part and all assistance received during the course of the investigations have
been duly acknowledged by the author of the thesis.

Thesis approved by the Student Advisory Committee
Chairperson : Dr. (Mrs.) Y. VIJAYA LAKSHMI
Associate Professor
RMCS Department
College of Home Science (Signature)
Hyderabad - 500 004

Member : Dr. (Mrs.) D. RATNA KUMARI
Professor
RMCS Department
College of Home Science (Signature)
Hyderabad - 500 004

Member : Dr. (Mrs.) S. RATNA KUMARI
Professor
HDFS Department
College of Home Science (Signature)
Hyderabad - 500 004

Date of final viva-voce:

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DECLARATION

I, Ms. D. KRISHNA PRIYA, hereby declare that the thesis entitled
“ERGONOMIC EVALUATION OF WORK AND WORKSTATION DESIGN OF
SUGARCANE JUICE VENDORS” submitted to Acharya N. G. Ranga
Agricultural University for the degree of Master of Science in Home Science is the
result of original research work done by me. I also declare that no material contained in
the thesis has been published earlier in any manner.

Place : Hyderabad (D. KRISHNA PRIYA)
Date : I. D. No.

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Acknowledgements
First and foremost I am indebted to “Almighty God” for having bestowed upon
me His grace and blessings in every humble step I have taken so far.

I express my deep gratitude to my major advisor, Dr. (Mrs.) Y. Vijaya Lakshmi,
Associate Professor, Department of Resource Management and Consumer Sciences,
College of Home Science, Hyderabad, for her guidance and inspiration offered right
from the initiation of the work to the shaping of the manuscript. The present work bears
the impression of her wise counsel and concrete suggestions, careful and constructive
criticism, constant encouragement and meticulous attention at all stages of the research
work. It was a great pleasure for me to conduct this thesis under her supervision. Her
overly enthusiasm and integral view on research and a task for providing „Only high-
quality work and not less‟ has made a deep impression on me.

My profound thanks are extended to Dr. (Mrs.) D. Ratna Kumari, Professor,
Department of Resource Management and Consumer Sciences, College of Home
Science, Hyderabad, for her untiring interest and encouragement, useful suggestions
and timely help extended in the preparation of this thesis.

My heartfelt thanks are to Dr.(Mrs.) S. Ratna Kumari, Professor, Department of
Human Development and Family Studies, College of Home Science, Hyderabad for the
advice and help given during my research work.

I am extremely grateful to Dr.(Mrs.) A. Mrunalini, University Head of
Department, Resource Management and Consumer Sciences, College of Home Science,
Hyderabad., Dr. (Mrs.) MahaLakshmi V. Reddy, Professor, Head of Department,
Resource Management and Consumer Sciences, College of Home Science, Hyderabad.,
Dr. (Mrs.) T. Neeraja, Professor, Department of Resource Management and Consumer
Sciences, College of Home Science, Hyderabad and Dr. (Mrs) P. Radha Rani, Associate
Professor, Department of Resource Management and Consumer Sciences, College of
Home Science, Hyderabad., for their co-operation in helping me in carrying out the
research work.
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I am proud to have well supported family in all aspects and it is a pleasure to
express my reverence to my parents for all their love and guidance; Mr. D.
Satyanarayana and Mrs. D. Tulasi and my brother D. Ravi Bhushan for their blessings,
moral support, constant encouragement and dedicated efforts to educate me to this
level.

I feel immense pleasure in expressing my gratitude and regards to my
grandparents for their blessings, love and affection and with those encouragements, I
could complete my study.

I extend my heartful thanks to my friends E. Shirin Hima Bindu, P. Rajya
Lakshmi, V. Prasuna and J. Deepika for their constant encouragement, good co-
operation and help rendered during the study and making it memorable one.

Lastly I want to thank one and all who helped me in completion of this work.

(D.KRISHNA PRIYA)

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LIST OF CONTENTS
Chapter No. Title Page No.
I INTRODUCTION 1-6
II. REVIEW OF LITERATURE 7-30
III. MATERIAL AND METHODS 31-41
IV. RESULTS AND DISCUSSION 42-157
V. SUMMARY AND CONCLUSIONS 158-164
LITERATURE CITED 165-173
APPENDICES 174-189

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LIST OF CONTENTS
Chapter No. Title Page No.
I INTRODUCTION 1-6
II REVIEW OF LITERATURE 7-30
2.1. Need and Importance of sugarcane juice 7-11
2.2 Techniques for the evaluation of postures 11-14
2.3 Work related musculoskeletal disorders of the workers 14-19
working in different workstations
2.4 Ergonomic assessment of different workstations of 20-24
manual workers
2.5 Design of sugarcane machines 24-30
III. MATERIAL AND METHODS 31-41
3.1 Research design 31
3.2 Location of study area 31
3.3 Selection of sample 32
3.4 Selection of tool for evaluation 32-39
3.5 Data Analysis 40
3.6 Statistical analysis and Interpretation 40-41
3.7 Designing 41
IV. RESULTS AND DISCUSSION 42-157
4.1 Profile of the respondents 42-45
4.2 Information related to the work 45-53
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4.3 Functions performed at the workstation by the vendor 54-57
4.4 Information related to workstation and machine 57-70
4.5 Problems faced at workstation while working 70-91
4.6 Observation schedule 91-94
4.7 Co relational statistics 94-97
4.8 Case studies 98-134
4.9 Designing 135-157
V. SUMMARY AND CONCLUSIONS 158-164
LITERATURE CITED 165-173
APPENDICES 174-189

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LIST OF TABLES
Table Title Page
No. No.
4.1 Distribution of sample by age 43
4.2 Demographic information of sample by age 44
4.3 Distribution of sample by number of years of experience 45
4.4 Working parameters of sample by number of years of 46
experience
4.5 Distribution of sample by information of helpers 49
4.6 Distribution of sample by different workstation 52-53
measurements
4.7 Distribution of sample by performance of different activities 56
at the workstation
4.8 Distribution of sample by working accessories 57
4.9 Distribution of sample by work parameters 59
4.10 Distribution of sample by features of workstation 61
4.11 63
Distribution of sample by type of sitting provision
4.12 Distribution of sample by placement of types of storage 63
4.13 Distribution of sample by type of garbage disposal unit 67
4.14 Distribution of sample by placement of disposal unit 69
4.15 Opinion on comfort of the respondents while performing 70
different activities
4.16 Distribution of sample by pain in different body parts 72
4.17 Distribution of sample by frequency of pain with relation to 74
Age
4.18 Distribution of sample by frequency of pain with Likert scale 76
scoring
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