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1.2 Medical background
1.2.1 ABOUT PAIN
Pain is an important signal in the human body warning system.
It reminds us that something is wrong, without which, abnormal
conditions may go undetected, causing damage or injury to vital
parts of our bodies.
Aside from its function in diagnosis, longlasting persistent pain
serves useless purpose.
Pain does not occur until encoded message travels to the brain
where it is decoded, analyzed, and reacted to, from the injured
area along the small nerves leading to the spinal cord. There
the message is transmitted to different nerves that travel up the
spinal cord to the brain. Then the pain message is interpreted,
referred to and pain is felt.
1.2.2 WHAT IS TENS ?
TENS (Transcutaneous Electrical Nerve Stimulation) is effective
in relief of pain. It is daily used and clinically proven by phy-
siotherapists, caregivers and top athletes around the world. Hi-
gh-frequency TENS currents activates the pain inhibiting mecha-
nisms of the nervous system. Electrical impulses from electrodes,
placed on the skin over or near the pain area, stimulate the ner-
ves to block the pain signals to the brain, causing the pain go
unperceived. Low-frequency TENS currents facilitate the release
of endorphins, the body's natural painkillers.
1.2.3 WHAT IS EMS ?
Electrical Muscle Stimulation is an internationally accepted and
proven way of treating muscular injuries. It works by sending
electronic pulses to the muscle needing treatment that causes
the muscle to exercise passively. It is a product deriving from the
square waveform, originally invented by John Faraday in 1831.
Through the square wave pattern it is able to work directly on
muscle motor neurons. The EMS System has low frequency and
this in conjunction with the square wave pattern allows direct
work on muscle groupings.
1.2.4 WHAT IS MASSAGE ?
The massage function is non-medical function. The Massage sti-
mulation program provides relaxing muscle vibration to loosen
tight muscles.
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