4. Others names for RSI
• Work related upper limb disorder(WHO)
• Occupational overuse syndrome(NZ)
• Cumulative trauma disorder(USA)
• Computer related injuries(CSI)
5. RSI Facts and figures
• OSHA estimates over 7000,000 RSI’s occur every
year.
• 15-20% of computers users throughout the world
may have estimated RSI .
• 3 out of 5 office workers in Sweden have
symptoms of RSI.
• Every day 6 people in uk have to leave their job
due to RSI
6. DID YOU KNOW?
• 75% of Indian computers users report
pain/numbness
• Over 30 young Indians IT/ITES professionals have
lost their jobs because of advanced RSI
• 55% of Indian computer users got injured within a
year of starting their first job
7. A dangerous occupation: This is also dangerous:
As a typical computer user, you “walk”
several miles each day on your fingertips
(250 keystrokes / min) * (2 in / keystroke) * 4 hours = 2 miles
8. What is RSI?
Repetitive Strain Injury (RSI)
is pain or nerve problems in upper extremity (hands, arms, or shoulders)
can also include neck and back
is a soft tissue disease (muscles and nerves)
is an overuse syndrome
Symptoms:
tightness, discomfort, stiffness,
soreness or burning in the hands, wrists, fingers, forearms, or
elbow.
pain that wakes you up at night; tingling, coldness or numbness
in the hands,
and loss of strength and coordination in the hands
9. Repetition Of Tasks
Too Much Stress
Other soft
Muscles Tendons Nerves
tissues
RSI
10.
11.
12. (CTS) is caused when median nerves that
controls the functioning of the hands and
fingers become compressed inside a “tunnel”
made up of the wrist bones, or carpals.
Median Nerve
Compressed
Free Powerpoint Templates Page 12
13. Symptoms of CTS injury
• Pain and discomfort
• Numbness and coldness in the
hands
• Loss of strength and/or joint
movement
• Swelling and stiffness in the hands
• The need to massage your
hands, wrists and arms
• Heaviness & even disturbs sleep.
14. Reasons for CTS injury
Long hours in the keyboard, especially those that type more
than four hours
Lack of circulation in the muscles that prevents nutrients and
oxygen to reach the tissues
Inadequate rest and breaks
Poor posture including the sitting, placement of hands on the
keyboard and proper height of the keyboard
Poor diet (lack of vitamins)
15.
16. CTS Treatment
• Rest, rest and more rest
• Use of a wrist brace or splint
• Take medication like ibuprofen
• Take vitamins
• Keep hands warm, take
breaks, exercise your hands and arms
• Use your knowledge of ergonomics
• Surgery should be your last retreat if
everything else fails
17. Eye Strains
• Eye strain is the single largest complaint of
computer users causing
soreness, irritation, blurred vision, redness
and dryness of the eyes.
Page 17
18. Reasons for this injury
Bad monitor resolution, flickering, or glare at the monitor
Poor lighting conditions in the computer room
distance between eye and screen readability of the screen
Electromagnetic radiation emitted by the CRT (UVA)
Staring at anything for a long period of time.
Loss of negative ions in the atmosphere due to
electrostatic charges on the face of the CRT
19. Symptoms of Eye Strains
Impaired vision, double vision and blurred vision
Difficulty in looking at one point for a period of time
Itchy dry eyes and discomfort while looking at the VDT
Headaches
Eye fatigue that can have serious
impact later in life
watering and other sensations
are eye problems associated with
computer maneuverings
20. Eye Strain Treatment
Use your knowledge of ergonomics
Take breaks when you feel strained
Use your laptop when possible because the monitor emits less
radiation
Use a monitor that holds a steady image without flickering.
Use the zooming function to improve readability
The screen should be kept 18-30 inches from ones eyes or about
an arm’s length.
21. Internet Addiction
• Use Internet every day without days off
• Loosing track of time while surfing the Net.
• Denial of high usage.
• 51% of Internet addicts suffer severe job impairment
• 58% get addicted within the first 12 months of Internet
usage
• Web addicts display similar brain changes to those
addicted to drugs or alcohol.
22.
23. Discomgoogolatio
n
• It is defined as feeling of distress or anxiety when unable to gain
immediate information access.
• Derived from “discombobulate” which means illusion and
”Google”
• The internet users suffer from distress or anxiety when unable
to get connected to the Internet.
• They felt frustrated and
confused whilst unable to get
online.
• Some had higher stress levels.
24. Use internet only when necessary.
Try to have account on only one of the social
networking sites.
Indulge in other hobbies.
Take care of time while chatting.
If still suffered by online mania ,
consult psychologist.
There is even an anti-facebook
blog called sickfacebook.com to
discuss issues.
25. Stress and Depression
• Computer operators experience more stress than
any other occupational group the National
Institute of Occupational Safety and Health has
studied
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26. Other Computer Related Health
Hazards
Back problems (pain) caused from the efforts of the muscle
to hold your posture for long periods of time
Skin rashes that are caused from the static fields in front of
the screen causing ions and pollutants in the air to become
positively charged and attach themselves to your negatively
charged skin (especially in low humidity)
Abnormal reproductive outcomes due to electromagnetic
radiation's affects on biological functions and biochemical
processes inside our cells
Cancer and leukemia (?)
Skin aging (?)
31. The required adjustability to achieve an
ergonomically correct computer
workstation
1. The top of your monitor should be at eye level,
and directly centered in front of you. It should
be about an arm's length in front of you.
2. Your desk surface should be at roughly belly
button level. When your arms are placed on the
desk, your elbows should be at a ~90 degree
angle, just below the desk surface. The armrests of
your chair should be at nearly the same level as the
desk surface to support your elbows.
32. 3. Your feet should be flat on the floor with your
knees at a ~90 degree angle. Your seat should not
be pressing into the back of your knees; if
necessary, tilt it slightly forward to alleviate any
knee pressure. Sit fully back in your chair, with
your back and shoulders straight and supported
by the back of the chair.
4. When typing, your wrists should be in line with
your forearms and not bent up, down, or to the side.
Your keyboard should be directly centered in front of
you. Other frequently used items should be
nearby, within arm's reach.
33.
34. RSI
May be worse than you think
Prevent
It before it causes permanent
DAMAGE
Repetitive stress injuries (RSIs) result from using the body continuously in ways it was not designed to work.RSIs have appeared in office workers who spend a lot of time using the computer keyboard and mouse
What causes RSI?
that may run up the hand into the wrist and arm
The forearm flexor tendons and a few nerves pass through a small tunnel formed by the wrist bones, or carpals, into the hand. As you move you hands and fingers, the flexor tendons rub against the sides of the tunnel, sometimes causing them to swell and push the median nerve. When the median nerve is pushed by the tendons, we feel pain.It is caused by typing for extended period ending up in swelling of muscles that pinches the nerves in a hand and fingers
causing eyestrain : luminance, contrast, reflections on screen,
Many people find a low monitor tobe more comfortable for eyes and neck, Wear protective eye glasses , Adjust the brightness of your screen
Now it becomes equals to drugs and cigrates.
Computer and internet are doors to vast information access and excellent means of entertainment, communication and networking. But that virtual medium should NEVER rip you off from the real world. Take Care!!
We all will become murli because either our fingers or wrist get twisted, then we cannot do anything expect for turning ballThin people will become fat by having an internet addiction.
Ergonomics, the "science of work," is a field of technology that considers human capabilities and limitations in the design of machines and objects that people use, the work processes that they must follow, and the environments in which they operate
tilt it slightly forward to alleviate any knee pressure.
