bIPhasIC / russIan modalITy InformaTIon
DYNATRON® 25 SERIES™ | OPERATOR’S MANUAL
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Biphasic / Russian
Modality Information
Russian Stimulation
With Russian Stimulation mode, the output of the device is a 2500 Hz sinusoidal wave. Russian stimulation currents produce
strong muscle contractions.
The Dynatron 25 Series devices allows complete control over all the parameters of the Russian Stimulation treatment. Three
treatment modes include Normal for firing one muscle, Reciprocal for firing two different muscles at different times, and
Co-contraction for firing two different muscles simultaneously. Choose a muscle contraction/relaxation cycle from options
of 10/10 (ten seconds on and ten seconds off), 10/30, 10/50, Continuous, and Custom cycles. The Normal mode requires use
of just one output jack (Channel 1, 2, 3, or 4). The Reciprocal and Co-Contraction modes utilize a channel pair (Channels
1-2 or 3-4).
NOTE: The continuous duty cycle is not recommended for electrical muscle stimulation, but may be used for settings that
are intended to affect other results than a muscle contraction. Pulse rate, the pulse duration, and the ramp time can all be
modified from their default settings.
Biphasic Stimulation
The Biphasic stimulation is similar to Russian stimulation in the parameters that are selected and in the available options.
It differs from Russian stimulation in the pulse duration and rate ranges (see parameters below). Additionally, the Biphasic
pulse includes just one cycle (one positive phase and one negative phase) per pulse.
Biphasic / Russian Parameters and Defaults
The default settings and the available ranges for Biphasic and Russian are as follows:
