Bedienungsanleitung Beurer EM 49 (Seite 34 von 148) (Deutsch, Englisch, Französisch, Italienisch, Spanisch, Polnisch, Türkisch)

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Deletion of the Doctor’s function is confirmed with a long acoustic

signal.

Therapy memory

The EM49 records the treatment time. To reach the therapy memory,

switch the device on using the ON/OFF button and press and

hold the button ˄ for 5 seconds. The treatment time lapsed

appears in the display. The top two numbers stand for minutes; the

hours are shown below. To reset the treatment time, press and hold

the button ˅ for 5 seconds. When replacing the battery, the

therapy memory is automatically reset. Press the „Menu“ button to

return to selecting a program, or switch the device off. Info: Therapy

memory cannot be accessed if the Doctor‘s function is activated.

9. Current parameters

Electrostimulation units operate with the following current settings,

which may affect stimulation effects differently, depending on the

setting:

9.1 Impulse shape

This describes the time function of the electrical

impulse.

It distinguishes between monophasic and

biphasic pulse currents. In monophasic pulse

currents, the current flows in one direction and

in biphasic pulse currents the electrical impulse

alternates its direction.

The digital EMS/TENS unit only provides biphasic pulse currents as

these relieve muscles, cause little muscle fatigue and provide safer

application.

9.2 Impulse frequency

The frequency indicates the number of individual

impulses each second and is given in Hz (Hertz).

It can be calculated by determining the cyclic

value for the time period. The relevant frequency determines which

types of muscle fibres react favourably. Slow-reacting fibres react

more easily to lower impulse frequencies up to 15 Hz, whereas fast-

reacting fibres only respond from approximately 35 Hz onwards.

Impulses of approx. 45 – 70 Hz are linked with constant tension in

the muscles and quicker fatigue. Higher impulse frequencies are

therefore favourable in strength and maximum power training.

9.3 Impulse width

This indicates the duration of an individual

impulse in microseconds. The impulse width

therefore determines, among other things, the

penetration of the electricity, where usually: larger

muscle masses require larger impulse widths.

9.4 Impulse intensity

Setting the intensity levels depends on the

individual sensitivity of each user and is

determined by a variety of variables, such as site

of application, blood circulation to the skin, skin

thickness and the quality of the electrode contact. The setting used

should be effective but should never cause an unpleasant sensation,

such as pain, at the site of application. While a gentle tingling

indicates sufficient stimulation energy levels, any setting that causes

pain should be avoided.

During longer applications it may be necessary to make

readjustments due to the adjustment processes over time at the site

of application.

9.5 Cycled impulse parameter variation

In many cases it is necessary to cover the overall tissue structure at

the site of application by applying several impulse parameters. In the

digital EMS/TENS unit, this is achieved by the provided programs,

which automatically make a cyclical impulse parameter change.

This also prevents individual muscle groups at the site of application

being affected by fatigue.

The digital EMS/TENS unit provides sensible default current

parameter settings. With this, you can change the impulse intensity

at any time during use. For 6 programs you can also set various

parameters for stimulation yourself.

Impulse

intensity

Time

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