Musculoskeletal disorders (MSDs) refer to injuries of the muscles, tendons, ligaments, nerves, and skeleton that result from repetitive or forceful exertions, vibrations, awkward postures, and other risk factors at work. Common causes of MSDs include awkward postures, forceful exertions, repetitive motions, and vibrations. Both prolonged standing and sitting can lead to MSDs if insufficient rest is provided or unnecessary postural loads are placed on the body. Ergonomics aims to design the workplace and jobs to fit the physical capabilities of workers in order to prevent MSDs.
ergonomics and physiotherapy care,
why ergonomics is important, do's to and dont's.
how to choose your furniture according to your height, how and why your posture correction is so important to reduce the stress from your body , to minimize the risk to getting prone to musculoskeletal diseases. How is your workstation affects your posture and relate to your musculoskeletal diseases.
know your posture, correct it, consult with your physiotherapist and keep doing exercises.
Wheelchair is truly is mobility orthosis.
A properly prescribed wheelchair can be useful device in reintegrating a person with a disability into the community.
Ergonomics in Physiotherapy and WorkplaceSusan Jose
We discuss about various risk factors related to causing of cumulative trauma disorders and how to manage each risk factor using bio mechanical principles and physiotherapy knowledge.
ergonomics and physiotherapy care,
why ergonomics is important, do's to and dont's.
how to choose your furniture according to your height, how and why your posture correction is so important to reduce the stress from your body , to minimize the risk to getting prone to musculoskeletal diseases. How is your workstation affects your posture and relate to your musculoskeletal diseases.
know your posture, correct it, consult with your physiotherapist and keep doing exercises.
Wheelchair is truly is mobility orthosis.
A properly prescribed wheelchair can be useful device in reintegrating a person with a disability into the community.
Ergonomics in Physiotherapy and WorkplaceSusan Jose
We discuss about various risk factors related to causing of cumulative trauma disorders and how to manage each risk factor using bio mechanical principles and physiotherapy knowledge.
Ergonomics-The key to progress professionally without physical and mental stress. Prevention today is better than Cure tomorrow. Essential advice for proper posture at workplace.
low back pain is very common in population occurring at least once a lifetime in nearly 60-80% of population.
This presentation was presented as a webinar in coordination with ypta and serving hands on 12-8-2021.
A very old school of manual therapy which comprises of two main principle centralization and peripheralization thought given by Robin McKenzie. The slideshow explain theoretical and practical part of both entire spine and extremities as well
Introduction:-
Hoffa's pad syndrome also known as Infrapatellar fat syndrome is an intrinsic disease of Hoffa's fat pad and a problem of knee joint which causes the pain at the front of knee joint so this pain is known as anterior knee pain.
Hoffa's fat pad contains pluripotent cells that can differentiate into osteoblasts and chondrocytes.
Hoffa's pad becomes inflamed or Damaged by The crushing of the pad between the femur and tibia during extension, causes inflammation of Hoffa's fat pad.
Nerve supply of fat pad is excellent( It receives branches of the femoral , common peroneal and saphenous nerves) so if it occurs any injury ,causes a sharp anterior knee pain.
The infrapatellar fat pad is a pad of adipose tissue underneath or deep to the patella tendon and the top of the fat pad attaches to the lower part of patella (knee cap).
hoffa's pad is a shock absorber ,when there is a direct force on the patella can result in pinching of the fat pad between femur and tibial plateau. The tibial plateau is the proximal tibial surface on which the femur rests.
HFP is surrounded anteriorly by the patellar tendon and the joint capsule, superiorly by the inferior pole of the patella, inferiorly by the proximal tibia and the deep infrapatellar bursa, and posteriorly by the joint synovium .
The main function of the HFP is to reduce friction between the patella, the patellar tendon, and the deep skeletal structures. In addition, it prevents pinching of the synovial membrane and it facilitates the vascularization of adjacent structures.
Causes:-
cause is usually due to single or repetitive traumatic episodes.
when you extend your knee the fat pad act as a cushion and reduces friction between outer patella facets and quadriceps tendons .
when you flex your knee ,upper part of fat pad becomes tensioned, it moves backwards in the knee.
it develops gradually over time if you repeatedly move your knee.
This is when your knee is forced to move forward from its completely straight normal position.
You may have always been able to over straighten your knee, which is called knee hyperextension or genu recurvatum .
hyperextension sports such as basketball, volleyball or high jumping may also cause inflammation of Hoffa's pad.
Hoffa's disease is more frequent in young women and the symptoms are anterior knee pain when upstairs and downstairs.
Sign and Symptoms:-
Complaints of anterior knee pain occurs when playing hyperextension sports such as basketball ,volleyball or high jumping .effusion and inflammation may be occurs and decreases the ROM of joint , stair negotiation .
Symptoms may worsen if the knee is overly straightened or bent for too long a period. Complications may include an inability to fully straighten the knee.
Diagnosis:-
Hoffa's syndrome completely diagnosed by MRI .we have requirement of an experienced orthopaedics to diagnose it.
primary Assessment have to check the Active and Passive Range Of Motion(AROM/PROM) of Hip joint and Knee joint.
Ergonomics-The key to progress professionally without physical and mental stress. Prevention today is better than Cure tomorrow. Essential advice for proper posture at workplace.
low back pain is very common in population occurring at least once a lifetime in nearly 60-80% of population.
This presentation was presented as a webinar in coordination with ypta and serving hands on 12-8-2021.
A very old school of manual therapy which comprises of two main principle centralization and peripheralization thought given by Robin McKenzie. The slideshow explain theoretical and practical part of both entire spine and extremities as well
Introduction:-
Hoffa's pad syndrome also known as Infrapatellar fat syndrome is an intrinsic disease of Hoffa's fat pad and a problem of knee joint which causes the pain at the front of knee joint so this pain is known as anterior knee pain.
Hoffa's fat pad contains pluripotent cells that can differentiate into osteoblasts and chondrocytes.
Hoffa's pad becomes inflamed or Damaged by The crushing of the pad between the femur and tibia during extension, causes inflammation of Hoffa's fat pad.
Nerve supply of fat pad is excellent( It receives branches of the femoral , common peroneal and saphenous nerves) so if it occurs any injury ,causes a sharp anterior knee pain.
The infrapatellar fat pad is a pad of adipose tissue underneath or deep to the patella tendon and the top of the fat pad attaches to the lower part of patella (knee cap).
hoffa's pad is a shock absorber ,when there is a direct force on the patella can result in pinching of the fat pad between femur and tibial plateau. The tibial plateau is the proximal tibial surface on which the femur rests.
HFP is surrounded anteriorly by the patellar tendon and the joint capsule, superiorly by the inferior pole of the patella, inferiorly by the proximal tibia and the deep infrapatellar bursa, and posteriorly by the joint synovium .
The main function of the HFP is to reduce friction between the patella, the patellar tendon, and the deep skeletal structures. In addition, it prevents pinching of the synovial membrane and it facilitates the vascularization of adjacent structures.
Causes:-
cause is usually due to single or repetitive traumatic episodes.
when you extend your knee the fat pad act as a cushion and reduces friction between outer patella facets and quadriceps tendons .
when you flex your knee ,upper part of fat pad becomes tensioned, it moves backwards in the knee.
it develops gradually over time if you repeatedly move your knee.
This is when your knee is forced to move forward from its completely straight normal position.
You may have always been able to over straighten your knee, which is called knee hyperextension or genu recurvatum .
hyperextension sports such as basketball, volleyball or high jumping may also cause inflammation of Hoffa's pad.
Hoffa's disease is more frequent in young women and the symptoms are anterior knee pain when upstairs and downstairs.
Sign and Symptoms:-
Complaints of anterior knee pain occurs when playing hyperextension sports such as basketball ,volleyball or high jumping .effusion and inflammation may be occurs and decreases the ROM of joint , stair negotiation .
Symptoms may worsen if the knee is overly straightened or bent for too long a period. Complications may include an inability to fully straighten the knee.
Diagnosis:-
Hoffa's syndrome completely diagnosed by MRI .we have requirement of an experienced orthopaedics to diagnose it.
primary Assessment have to check the Active and Passive Range Of Motion(AROM/PROM) of Hip joint and Knee joint.
Promoting safety and health in the workplacePrince Mello
Promoting health and safety in a work place cannot be overemphasize. Read out this piece and better you work environment and promote health and safety where you work.
Acupuncture and Manual Therapy: Parallels in Research and Clinical Practice -...Mark Sexton
In clinical practice Acupuncture, Manual Therapies and Exercise Therapy are seamlessly integrated into treatment and rehabilitation. Globally, unconnected research into how each of these treatments may work is converging in the area of Cellular Mechanotransduction. This lecture explains this process, and the reviews research in the area of fibroblast mechanotransduction in the healing or maladaptation of connective tissue. The relevance of this research to clinical practice, education and research is considered. Research showing maladaption of connective tissue in chronic low back pain is explained. A published hypothesis integrating central nervous system and peripheral tissue plasticity is discussed in relation to the emergence, and to the integrated management of, chronicity.
Importance of ergonomics in designing workplaceParth Shukla
this presentation discusses importance of Ergonomics in designing workplace and different aspects in different conditions which affects workers while performing their work.
Ergonomics- Standing and Sitting Work .pptxAytacCfrova
This presentation is about the ergonomic design of standing and sitting jobs. Its impacts and what we should and should do. suitable for students and lecturers.
Ergonomic modification for a person with a desk jobJoe Antony
It was estimated that about 40.7 % of the global population was surfing the computers in the year 2012 as compared to 2006 of only 26.2%. [1]
Marshall et al study reveal that on average, six out of 10 employees used a chair at work and the number was expected to grow.[2]
Many researchers report that working 5.41 hours sitting at desk and 7 hour sleeping at night had a great impact on the physical and mental health.[2]
Sitting on a chair is one of the most common positions adopted by humans.
children and adults spend approx. 55% of their working hours or 7.7 hours/day in sitting postures.[2]
The ergonomic fit workstations have become a standard practice in various developed countries
As part of ILRI Ergonomic program, EOHS is planning to carry out ergonomic awareness across ILRI Nairobi campus. The sessions will provide information on the basic overview of the principles of ergonomics, musculoskeletal disorders and ergonomic exercises that will help to avoid injury problems related to poor ergonomics. The sessions will be conducted by qualified Occupational Therapists and Physiotherapists and are designed to provide employees with the knowledge they need to prevent musculoskeletal problems.
This is the presentation made during the awareness.
Embracing GenAI - A Strategic ImperativePeter Windle
Artificial Intelligence (AI) technologies such as Generative AI, Image Generators and Large Language Models have had a dramatic impact on teaching, learning and assessment over the past 18 months. The most immediate threat AI posed was to Academic Integrity with Higher Education Institutes (HEIs) focusing their efforts on combating the use of GenAI in assessment. Guidelines were developed for staff and students, policies put in place too. Innovative educators have forged paths in the use of Generative AI for teaching, learning and assessments leading to pockets of transformation springing up across HEIs, often with little or no top-down guidance, support or direction.
This Gasta posits a strategic approach to integrating AI into HEIs to prepare staff, students and the curriculum for an evolving world and workplace. We will highlight the advantages of working with these technologies beyond the realm of teaching, learning and assessment by considering prompt engineering skills, industry impact, curriculum changes, and the need for staff upskilling. In contrast, not engaging strategically with Generative AI poses risks, including falling behind peers, missed opportunities and failing to ensure our graduates remain employable. The rapid evolution of AI technologies necessitates a proactive and strategic approach if we are to remain relevant.
Model Attribute Check Company Auto PropertyCeline George
In Odoo, the multi-company feature allows you to manage multiple companies within a single Odoo database instance. Each company can have its own configurations while still sharing common resources such as products, customers, and suppliers.
Welcome to TechSoup New Member Orientation and Q&A (May 2024).pdfTechSoup
In this webinar you will learn how your organization can access TechSoup's wide variety of product discount and donation programs. From hardware to software, we'll give you a tour of the tools available to help your nonprofit with productivity, collaboration, financial management, donor tracking, security, and more.
Synthetic Fiber Construction in lab .pptxPavel ( NSTU)
Synthetic fiber production is a fascinating and complex field that blends chemistry, engineering, and environmental science. By understanding these aspects, students can gain a comprehensive view of synthetic fiber production, its impact on society and the environment, and the potential for future innovations. Synthetic fibers play a crucial role in modern society, impacting various aspects of daily life, industry, and the environment. ynthetic fibers are integral to modern life, offering a range of benefits from cost-effectiveness and versatility to innovative applications and performance characteristics. While they pose environmental challenges, ongoing research and development aim to create more sustainable and eco-friendly alternatives. Understanding the importance of synthetic fibers helps in appreciating their role in the economy, industry, and daily life, while also emphasizing the need for sustainable practices and innovation.
Normal Labour/ Stages of Labour/ Mechanism of LabourWasim Ak
Normal labor is also termed spontaneous labor, defined as the natural physiological process through which the fetus, placenta, and membranes are expelled from the uterus through the birth canal at term (37 to 42 weeks
2024.06.01 Introducing a competency framework for languag learning materials ...Sandy Millin
http://sandymillin.wordpress.com/iateflwebinar2024
Published classroom materials form the basis of syllabuses, drive teacher professional development, and have a potentially huge influence on learners, teachers and education systems. All teachers also create their own materials, whether a few sentences on a blackboard, a highly-structured fully-realised online course, or anything in between. Despite this, the knowledge and skills needed to create effective language learning materials are rarely part of teacher training, and are mostly learnt by trial and error.
Knowledge and skills frameworks, generally called competency frameworks, for ELT teachers, trainers and managers have existed for a few years now. However, until I created one for my MA dissertation, there wasn’t one drawing together what we need to know and do to be able to effectively produce language learning materials.
This webinar will introduce you to my framework, highlighting the key competencies I identified from my research. It will also show how anybody involved in language teaching (any language, not just English!), teacher training, managing schools or developing language learning materials can benefit from using the framework.
Operation “Blue Star” is the only event in the history of Independent India where the state went into war with its own people. Even after about 40 years it is not clear if it was culmination of states anger over people of the region, a political game of power or start of dictatorial chapter in the democratic setup.
The people of Punjab felt alienated from main stream due to denial of their just demands during a long democratic struggle since independence. As it happen all over the word, it led to militant struggle with great loss of lives of military, police and civilian personnel. Killing of Indira Gandhi and massacre of innocent Sikhs in Delhi and other India cities was also associated with this movement.
Read| The latest issue of The Challenger is here! We are thrilled to announce that our school paper has qualified for the NATIONAL SCHOOLS PRESS CONFERENCE (NSPC) 2024. Thank you for your unwavering support and trust. Dive into the stories that made us stand out!
A Strategic Approach: GenAI in EducationPeter Windle
Artificial Intelligence (AI) technologies such as Generative AI, Image Generators and Large Language Models have had a dramatic impact on teaching, learning and assessment over the past 18 months. The most immediate threat AI posed was to Academic Integrity with Higher Education Institutes (HEIs) focusing their efforts on combating the use of GenAI in assessment. Guidelines were developed for staff and students, policies put in place too. Innovative educators have forged paths in the use of Generative AI for teaching, learning and assessments leading to pockets of transformation springing up across HEIs, often with little or no top-down guidance, support or direction.
This Gasta posits a strategic approach to integrating AI into HEIs to prepare staff, students and the curriculum for an evolving world and workplace. We will highlight the advantages of working with these technologies beyond the realm of teaching, learning and assessment by considering prompt engineering skills, industry impact, curriculum changes, and the need for staff upskilling. In contrast, not engaging strategically with Generative AI poses risks, including falling behind peers, missed opportunities and failing to ensure our graduates remain employable. The rapid evolution of AI technologies necessitates a proactive and strategic approach if we are to remain relevant.
1. MUSCULOSKELETAL PROBLEMS IN SITTING & STANDING
Presented by ,
Jinson Jose
S1 M Tech
IE& M
Roll No:4
mail me @
geothomasseril@gmail.com
1
2. CONTENTS
2
• Definition – work related MSDs
• Most important localization of WMSDs
• MSDs & Ergonomics
• Causes of MSDs
• Formula to prevent MSDs
• Design for sitting & standing workers
• Advantages of standing work
• Behavior characteristics of unconstrained standing
• For standing workers
• Transformation from standing to sitting
• Sitting postures
• Perfect sitting posture
• Spinal problem in standing
• Spinal problem in sitting
3. CONTENTS cont…
3
• Design for standing workers
• Evaluation of standing aids
• Sit – Stand production line
• Work surface design
• Ergonomic approach to reduce MSDs
• Work station
• Tools
• certain unhealthy postures causing MSDs
• Conclusion
• Reference
4. Definition - Work Related Musculoskeletal
Disorders (MSDs)
• The term musculoskeletal disorders denotes the health problems of
locomotor apparatus i.e of:
• Muscles – tissues that contract to make movements
• Tendons – tissues that connect muscles to bones
• Skeleton - load bearing structure
• Cartilage – tissues that provides cushioning & reduce
friction b/w bones
• Ligaments – tissues that connect bones to bones
• Nerves – communication s/m that links muscles,
tendons & other tissues to brain
4
6. MSDs & ERGONOMICS
• MSDs are often confused with ergonomics
• Ergonomics is the science of fitting work place
conditions & job demands to the capabilities of
workers
• In other words MSDs are the problem &
ergonomics is the solution
6
10. Static work: Design for standing and
seated workers
• Humans are designed to stand on two legs, but they
are not designed to stand still.
• Standing is the position of choice for many tasks in
industry but it can lead to
•Discomfort if insufficient rest is
provided or if unnecessary postural
load is placed on the body.
10
11. Some Advantages Of The Standing Work
Position
1. Reach is greater in standing than in sitting.
2. Body weight can be used to exert forces.
3. Standing workers require less leg room than seated
workers.
4. The legs are very effective at damping vibration.
5. Lumbar disc pressures are lower
11
12. Some Advantages Of The Standing Work
Position cont…..
12
6. It can be maintained with little muscular activity and
requires no attention
7. Trunk muscle power is twice as large in standing than in
semi-standing or sitting
13. Some Behaviour Characteristic Of
Unconstrained Standing
1. stand still
2. Bear weight on one leg
3. Lean backwards against anything
//4. Use a footrest
//5. Sit down when tired
6. Maximise contact with fixed objects
13
14. Some Behaviour Characteristic Of
Unconstrained Standing cont…..
7. Rest head on hand
8. Rest one foot on an object
9. Rest knee on something
10 . Rest hands on knees
14
15. For standing workers
• Prolonged daily standing is known to be
associated with low back pain.
• Where possible, jobs that require people to stand
still for prolonged periods without some
• external form of aid or support must be
redesigned to allow more movement or to
• allow the work to be done in a combination of
standing and sitting postures.
15
16. Transformation From Standing To Sitting
• Posterior tilting of the
pelvis and flattenting of
the lumbar curve during
the transition
from standing to sitting.
• Much of the postural
adaptation to sitting
takes place in the back,
rather than the legs.
16
17. Sitting Postures
• The lower back is supported by the chair and the fits the
curve of the spine.
• The back of the knees are 3-4 inches from the chair, the
feet are flat on the floor, the elbows, arms, and wrists are at
neutral positions. The monitor is kept at eye level.
• This individual is changing his position (not being static)
without comprising the “correct” positions 17
19. Spinal Problems In Standing
• Low back pain is common in standing
workers .
• In extended postures the facet joints
may begin to take on some of the
compressive load.
• If the lumbar intervertebral discs are
degenerated,
• the space between adjacent
vertebrae decreases and the
load on the facet joints
increases even more.
19
20. Spinal problems in sitting
• Sitting has a number of advantages over
standing as a working position
• Static,low-level activity of the soleus and
tibialis anterior muscles is required in
standing and
• these muscles can fatigue.
• Because the lower limbs drain blood against
gravity,
20
21. Spinal Problems In Sitting
• pooling may occur when someone stands still for long periods,
causing swelling at the ankles.
• In extreme circumstances, reduced return of blood to the
heart may cause a drop in blood pressure and the person may
faint
21
22. Design for standing workers
As a rule of thumb, all objects that are to be used by standing
workers should be placed between hip and shoulder height to
minimise postural stress caused by stopping or working with the
hands and arms elevated.
Some workspace design faults that increase postural stress in
standing workers can be summarised as follows
1. Working with the hands too high and/or too far away:
compensatory lumbar lordosis.
2. Work surface too low: trunk flexion and back muscle strain.
3. Constrained foot position due to lack of clearance: worker stands
too far away.
4. Working at the corner of the bench: constrained foot position,
toes turned out too much.
22
23. Evaluation of standing aids
Several researchers have investigated the effects of standing aids on
comfort and
fatigue in standing.
Footrests And Footrails - The footrest raised the resting foot 250 mm
above the level of the floor and resulted in a net posterior rotation of
the pelvis of 4–6 Degrees
23
24. Evaluation of standing aids
24
Anti-fatigue Mats - Mats do not seem to reduce lower
leg fatigue although they do reduce discomfort in the
lower leg, feet and muscle fatigue in the erector spinae
Muscles
25. Standing aids cont…
Compression stockings -
• The wearing of compression
stockings bought about a
significant reduction in leg
swelling
25
27. Sit – stand production line
• Sit–stand
industrial production line. Note
the use of height adjustable sit–
stand stools and a
large sloping footrest to
accommodate a variety of trunk–
thigh angles. 27
28. Work Surface Design
• Workstations can be further improved by considering various
aspects of desk and bench design.
• Some important considerations are the provision of tilt in
the work surface and/or of document holders and the
provision of free space in the working area
• Several studies have indicated that tilted desktops (of 15 or
even 10 degrees) do reduce the trunk and neck flexion of
seated persons engaged in reading and writing and thus
reduce the load on the corresponding parts of the spine
28
29. • Tilted work surfaces
can be effective when
used with both
conventional and
alternative seats.
29
Work Surface Design
32. Work station cont…
Standard Way
• Adjustable workstation
• Adjustable chair
• Foot rests
• Adjustable monitor
• Document holder
32
33. Fully adjustable workstation,
• table height fully adjustable which adjust the height of the
monitor, the keyboard adjusts from level to 45 degrees
33
34. • Use of Force or of grip-strength
Longer/shorter and
thicker/thinner handles
• Repetitive motion
• Ratcheting mechanism or
gears
• Power tools
Electric stapler
Electric knife
Spring-loaded returns
Tools
34
35. • Awkward positions
Bent or curved handles
Extensions or add-ons
Headphones
Support equipment overhead
Step stool
• Forceful exertions
Soft-touch keyboards/buttons
Lifting devices
Tools cont…
35
37. What’s wrong with this. If person continually performs this activity
of filing overhead could become a problem. What if person was not
standing on cart? Would overhead reach be longer? Also notice
that the proper piece of equipment is not being. This has wheels37
38. This step stool enables the person
to reach the level she needs more
comfortably. Also notice is proper
type. Becomes immobile when
step on.
38
42. CONCLUSION
42
• Musculoskeletal problems in sitting & standing mainly
arises when there is unhealthy ergonomics
• Ergonomics is the solution for all those MSDs
• proper awareness for sitting & standing workers &
providing them perfect
•workstations
•Tools &equipments
•Facilities reduce MSDs
• As a whole these changes reflect by increasing the
productivity of the firm
43. REFERENCE
43
• R.S Bridger , “introduction to ergonomics” : 2000-2014 ;
edition
• Steven Weigle , OSHA academy – course 711 study guide ;
ergonomics & WSDs
•https://www.wikipedia.com