Pulse Frequency; Pulse Width; Impulsintensität; On And Off Time - Beurer EM 80 Gebrauchsanweisung

In the Digital TENS/EMS unit, there are only biphase pulse trains, as they
reduce the strain on the muscle, leading to less muscle fatigue as well as
safer application.

3.2 Pulse frequency

Frequency indicates the number of individual pulses per
second, and is indicated in Hz (Hertz). It can be calculated
by working out the inverse value of the periodic time.
The respective frequency determines which types of muscle fibre preferably
react.
Slow-response fibres tend to react to lower pulse frequencies up to 15 Hz,
while fast-response fibres only respond to frequencies over approx. 35 Hz.
With pulses of approx. 45-70 Hz, there is permanent tension in the muscle
combined with premature muscle fatigue. Higher pulse frequencies can the-
refore preferably be used for elasticity and maximum strength training.

3.3 Pulse width

Pulse width is used to indicate the duration of an indivi-
dual pulse in microseconds. Pulse width also determines
the pene tration depth of the current whereby in general,
the following applies: a greater muscle mass requires a greater pulse width.
3.4 Impulsintensität
Setting the degree of intensity is individually dependent
on the subjective feeling of each individual user and is
determined by a number of parameters such as application
site, skin circulation, skin thickness as well as quality of electrode contact. The
actual setting should be effective but should never produce any unpleasant
sensations such as pain at the site of application.
While a slight tingling sensation indicates sufficient stimulation energy, any
setting which leads to pain must be avoided.
With prolonged application, readjustment may be necessary due to time
adjustment processes at the site of application.

3.5 ON and OFF time

ON time describes the stimulation time of the cycle in seconds, i.e. the length
of the cycle in which pulses are delivered to the body. OFF time, on the other
hand, indicates the length of the cycle (in seconds) which is stimulation-free.

3.6 Cycle-controlled pulse parameter variation

In many cases it is necessary to cover the entirety of tissue structures at the
site of application by using several pulse parameters. With the Digital TENS/
EMS unit, this is done by the existing programmes automatically making a
cyclical pulse parameter change. This also prevents individual muscle groups
periodic at the site of application from getting tired.
time
With the Digital TENS/EMS unit there are useful presettings for current para
meters. During the application, however, you do have the possibility of
changing pulse intensity at any time and, with individual programmes, you
can also alter pulse frequency beforehand in order implement the application
which is the most comfortable or promises the most success for you.

4. Unit description

4.1 Description of components

Display (main menu):
A TENS/EMS/MASSAGE submenus
Pulse width B Frequency (Hz); ON time; pulse
width
C Pulse intensity
D Low battery
E MEMORY display
F Timer function (residual time
display); OFF time
G Programme/cycle numbers
H Operating status display
Keys:
a MENU key
b CYCLE TIMER key
c FREQUENCY SETTING key
d PULSE WIDTH SETTING key
e CYCLE SETTING key
f ON/OFF key
g ▲ UP and ▼ DOWN selection keys
h ENTER key
i CH1 ± , CH2 ± , CH3 ± , CH4 ± keys
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A F G H g
B
C
D
E
h
i
f e
a
b
c
d