.. Flashcards
(24 cards)
What is the Bath method in faradic treatment?
Application of faradic on body parts in tube or tank of water
Example is the faradic foot bath
What is an advantage of the Bath method?
Decreases skin resistance and ensures perfect contact with tissue
What is a disadvantage of the Bath method?
Cannot be localized, superficial muscles contract more than deeper ones, and risk of electrical shock
What happens to a severed nerve after several days?
Degeneration of the axons takes place
What should be used to exercise the muscle after nerve injury?
Faradic current as long as a good response is present, then switch to modified direct current
What is the effect of faradic current on venous and lymphatic drainage?
Encourages return through alternate muscle contraction and relaxation
How can adhesions be prevented after effusion?
By keeping structures moving with respect to each other
What is the role of faradic current in painful knee syndromes?
Stimulates muscle contraction to prevent atrophy
How are electrodes fixed during faradic treatment?
With a rubber strap or by body weight
What are contraindications for using faradic current?
Skin lesions, certain dermatological conditions, acute infections, thrombosis, loss of sensation, cancer, cardiac pacemakers, superficial metals
List some physiological effects of faradic type current.
- Muscle contraction
- Muscle strengthening
- Facilitation of muscle control
- Maintenance or increase of range of joint motion
- Effects on muscle metabolism and blood flow
- Pain modulation
- Electrical stimulation for the control of spasticity
- Effects on blood flow
- Reduction of edema
- Effects on the autonomic nervous system
What is the significance of muscle re-education using faradic current?
Restores the sense of movement in cases of prolonged disuse or incorrect use
How does faradic current reduce swelling and pain?
Alters permeability of the cell membrane, accelerates fluid movement, and increases metabolism
What type of contraction does faradic current produce?
Tetanic contraction due to repeated stimulation
What is the definition of a motor point?
A small area on a muscle where minimal electrical stimulation causes contraction
What is the labile method of faradic stimulation?
Stimulation of large muscles with multiple nerve supply by moving the active electrode over the treatment area
What is the duration of faradic current treatment for decreasing edema?
15-20 minutes
What should be done if skin sensation is not normal during treatment?
Position the electrodes at an alternative site to ensure effective circulation
What are the forms of faradic current?
- Induced asymmetrical alternating current
- Biphasic, Asymmetrical, Unbalanced, Spiked
What is the purpose of surging in faradic currents?
To produce a near normal tetanic-like contraction and relaxation of muscle
What is the frequency range of faradic current?
30 to 100 Hz
What happens when muscle contracts under faradic stimulation?
Muscle metabolism increases, leading to increased oxygen demand and waste output
What is the role of the passive electrode in group muscle stimulation?
Keeps stationary while stimulating all muscles of the group
What is a disadvantage of motor point stimulation?
Deep muscles cannot be stimulated and it is time-consuming
