5
4.5
Choosing the right strength
The object of EMS treatment is to produce powerful muscle contractions.
The strength of the current should be increased to
about three times the level at which you can
first feel the tingling
, or to as high as you can stand without causing pain.
You will probably feel that electrical contraction is being more powerful than a voluntary
contraction, because the current also stimulates your sensory nerves. The signals have a pain-
relieving effect.
You may find the sensation uncomfortable to start with, so that you may not get up to therapeutic
strength at the start of treatment. The strength can be increased during the course of the treatment,
as you become accustomed to the sensation.
Voluntary muscular activity is more effective than stimulation, and it may improve progress if you
combine voluntary contraction with stimulation.
The powerful muscle contractions caused by electrical stimulation give rise to training aches, which
usually disappear within a week.
After treatment tingling sensations may continue or your skin may feel numb, this is normal.
5 STIMULATION PARAMETERS:
The effect of Electrical stimulation on the body depends on the following current settings:
5.1 Pulse Waveform
This describes the time function of the excitation current which may be either or
biphasic. With monophasic pulse trains, the current flows in one direction. With
biphasic pulses, the excitation current alternates its direction
The Sports TENS uses only biphasic pulse trains, as they reduce the strain on the
muscle, leading to less muscle fatigue as well as safer application, and reduce the
risk of skin irritation under the electrode.
Summary of Contents for Sports TENS 2
Page 1: ...1 Sports TENS 2 INSTRUCTIONS FOR USE...
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Page 40: ...35 20 TENS DERMATOMES...
Page 41: ...36 21 EMS Electrode Placement Chart...
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