Medium Frequency Alternating Current (Mfac) - Accelerated Care Plus OMNISTIM FX2 PRO User Manual

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Medium Frequency Alternating Current (MFAC)

1. Muscle Stimulation
Since the mid 18th Century, neuromuscular electrical stimulation (NMES) has been used as an adjunctive therapy
for various neuromuscular and musculoskeletal disorders. Clinicians and investigators have been successfully using
NMES to facilitate muscle contraction, to re-educate muscle action, to aid in the prevention of atrophy and to
overcome neuromuscular inhibition following injury or surgery.
a. Isometric Muscle Stimulation
NMES during isometric exercise offers a reduced threat of over-
stress and re-injury to the joint. NMES is clinically used at the mid
point of the range of motion where the muscle can generate
maximum torque.
Procedure:
Gradually increase intensity to maximum patient tolerance during each contraction. The intensity should be
increased to produce at least 50 to 80% of Maximum Voluntary Contraction (MVC). Place ACP Reusable
Electrodes in a bipolar or quadripolar pattern on the muscle(s) being stimulated. The treatment should be
approximately 15 minutes duration 3 to 4 times a week.
b. Muscle Spasm Reduction
NMES can be utilized to induce fatigue of muscles in spasm.
Researchers have found that the greatest fatigue of muscles occurs
when the muscle contraction relaxation times are equivalent (1:1
ratio) and when higher frequencies (60-80 Hz) are used. Electrical
stimulation of the motor neuron using medium frequency currents
results in neuromuscular junction fatigue.
Procedures:
Gradually increase intensity to maximum patient tolerance during each contraction. Place electrodes in a
monopolar, bipolar or quadripolar pattern on the muscles in spasm. The treatment time should be of
approximately 20 minutes duration repeated 2 or 3 times per week.
c. Increased Blood Flow / Edema Reduction
Long and short-term electrical stimulation of muscle has been shown to
alter the vascular dynamics affecting local muscle blood and lymph
flow. It has been shown that blood-flow increased significantly during
the first minute of electrical stimulation and remained elevated during
and for ten minutes following stimulation. The immediacy of
vasodilatation following electrical stimulation indicates that the
vascular response is a functional, reflexive response. In addition, long-
term electrical stimulation has been shown to increase the number of
capillaries and thus improve the capillary blood-flow to the stimulated
muscle. Not all types and parameters of electrical stimulation affect the
blood-flow dynamics of the muscle being stimulated. Therefore, the
following clinical parameters should be adhered to for optimal
effectiveness.
Procedure:
Place one or two sets of electrodes in a bipolar or quadripolar technique
over the selected muscle(s). Gradually increase intensity to 15 to 30%
of maximum voluntary contractions. Continue the treatment for
approximately 10 minutes.
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® 2
OMNISTIM FX PRO USER MANUAL
Mode NMES
Time ON 10 Sec
Time OFF 50 Sec
ON Ramp 2 Sec
OFF Ramp
2 Sec
Pulse Rate 35-50Hz
Mode NMES
Time ON 10 Sec
Time OFF 10 Sec
ON Ramp 1-2 Sec
OFF Ramp 1-2 Sec
Pulse Rate
35-50Hz
Blood Flow
Mode
Simultaneous
Time ON
15 Sec
Time OFF
50 Sec
ON Ramp
OFF Ramp
Pulse Rate
Muscle Pump
Edema Reduction
Mode
Alternate
Time ON
Time OFF
ON Ramp
OFF Ramp
Pulse Rate
NMES
2 Sec
2 Sec
50Hz
NMES
4 Sec
4 Sec
2 Sec
2 Sec
35Hz