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The intensity should be increased gradually until vibration or prickling is felt, but it should not reach tetanic contraction.
The maximum duration for each session is 12 minutes, with each type of current applied for approximately 3 minutes.
Electrical stimulation therapy should be administered daily or on alternate days for a total of 12 sessions.
Electrical stimulation therapy is used for pain and swelling relief in soft tissue injuries, joint problems, circulatory issues, and peripheral nerve problems.
Contraindications include open skin, bony areas, loss of sensation, skin diseases, infections, thrombosis, pacemakers, surface metal, tumors, and pregnancy.
Electrical stimulation reduces sympathetic activity, causes vasodilation, and releases histamine due to current effects.
It promotes tissue healing by improving circulation and increasing cell activity.
DF causes mild prickling, MF provides strong vibration for pain relief without spasm, CP induces rhythmic contractions for traumatic pain, and LP offers long-lasting pain relief helpful in neuralgia.
Carbon rubber or metal electrodes with pads should be used, with two equal-sized electrodes placed on both sides of the area and a small electrode on the trigger point.
MF is a half-wave rectified sinusoidal current with a frequency of 50 Hz, while DF is a full-wave rectified sinusoidal current that provides continuous 10 ms sinusoidal pulses at 100 Hz.
Therapeutic effects include pain relief, decreased swelling and inflammation, muscle strengthening and retraining, improved local blood circulation, and assistance in tissue healing.
It blocks pain signals through the pain gate mechanism, releases natural pain-relieving chemicals, increases blood flow to remove irritants, and uses vibration to reduce pain sensation.
Increased blood flow from electrical stimulation, particularly through CP and LP currents, helps reduce edema by improving circulation.
Didynamic current can help muscles contract and can be combined with weights for strengthening exercises.
The surge time for LP is usually 5 to 6 seconds, where two MF currents are applied together, one constant and the other varying.
Electrical stimulation stimulates sensory nerves, motor nerves, causes muscle contractions, and produces chemical changes due to unidirectional current flow.
Using two equal-sized electrodes ensures balanced current distribution across the treatment area, enhancing the effectiveness of the therapy.
Conditions such as soft tissue injuries, arthritis, circulatory issues like Raynaud’s and migraine, and peripheral nerve problems like neuralgia and sciatica can benefit from this therapy.
It should be avoided in conditions like open skin, infections, or the presence of pacemakers due to the risk of exacerbating these issues or causing harm.
Didynamic current has a pulse duration of 10 ms and a frequency of 50–100 Hz, delivering 100 pulses per second.
By reducing sympathetic activity and causing vasodilation, electrical stimulation therapy enhances blood flow to the targeted area.