Interferential therapy def, method, physiological effects of ift, indications & Contraindications


Interferential current is the resultant current produced when 2 or more alternating currents are applied simultaneously at the point of intersection in a given medium, it is a form of electrical treatment in which a medium - frequency currents are used to produce low frequency effect    

Basic principles:-         

                                               

Ift depends upon principles of interferential effect of 2 medium frequency current crossing patients tissue to produce lowest frequency effect Example:- one current is A= 4000 HZ & B circuit=3900HZ 2currents applied at crossing point beat frequency current set up Amplitude is modulated and that is 100 Hz                                       Main advantage-->effects are produced in tissues where required                                                                Principles of decrease in pain--> by gate control therapy & stimulated release of pain reducing substance ( endorphins & encephalin)  















                   

                                                                                           Method                                       




Skin must be clean & clear & washed if any skin lesions covered by petroleum jelly, electrode be placed in such a way that crossing point of 2current lie above (or) around affected area, suitable frequency, spectrum mode like triangle, rectangule, trapezoid, select base, Upper frequency, increase power gently untill the patient can tolerate, difference in current in both channels 1,2  because due to resistance in body where 2 current pass, approximate treatment frequency selected 80-100hz rhythmic to relieve pain, After 15min treatment intensity to minimum switch off mains & disconnect electrode.                                                                         


















                                                                                         Physiological Effects of IFT :-                                                                                                   





depends upon- Magnitude of current, type of mode used, frequency range used, electrode positioning. 


     




Relief of pain:    increase in local circulation by either local pumping effect of stimulated muscles, autonomic nerve and this blood vessels help removing chemicals from local area. A frequency of 80-100 hz rhythmic chosen, in order to activate descending pain suppression system a frequency of 15 hz required, stimulation of small diameter fiber release of endogenous opiate at spinal level, blocking physiological of pain modulation by IFT             


                                                                                      


    



         





 



Motor Stimulation:- if IFT used frequency between 1&100 hz normal innervated muscle mode to contract, At low frequency twist produced between 5& 20hz partial tetany from 30-100hz tetanic contraction, All range muscle  Contractions when rhythmic frequency of 1-100hz, muscle contraction with  little sensory stimulation & in deeply placed muscle example:- pelvic floor, stimulation of both voluntary & smooth muscle fibers, Faradism can only stimulate voluntary component.         

                                                                                           














 

Absorption of exudates:- frequency of 1-10hz rhythmic so rhythmical pumping produced by muscle contraction, and effect on autonomic nerve affect diameter of blood vessels & circulation both these factors help absorb exudates & reduce swelling                                                                                                                                 










Indications and Contraindications:-                                                                                                                      





sports medicine to decrease pain oedema, stress incontinence patient electrode on lower abdomen & inner thigh contraction of pelvic floor, low back pain, periarthritis shoulder, Osteoarthritis knee, absorption of exudates, stress incontinence                                                         contraindications:- General conditions-fever or hyperpyrexia, hypertension, Anemia, severe Renal cardiac failure,epileptic patient s, non- cooperative patient                                                                 local conditions- open wounds,recent fracture s, skin grafts, severe edema,hairy surface,mental in part, malignant growth,loss of sensation,hypersensitive.                                                                                                                                      Thank you                   

    

                                                                         

                                                                                                                                                                        

       


                 





 






































Physioguide by divyA                                       

















































I

Comments

Post a Comment

Popular posts from this blog

Head injuries,symptoms, causes, pathology, types, examination, treatment, physio

 It is the insult to the brain caused by external physical force leading to altered conscious levels, cognitive problems as well as motor & sensory deficits.  Commonly called traumatic brain injuries.  Head injuries have increased due to increased traffic and decreased traffic sense. Most of the cases are proved to be fatal death.  Incidence:-  High Head injuries from road traffic accidents are most common in young males.  RTA's although constituting only about 25% of all patients with head injury, are the cause of more severe injuries.  RTA's contribute to 60%of deaths from head injury, of these half die before reaching hospital.  Causes of head injuries:- Road traffic accidents (RTA's)  Gunshot Riots  Blow or hit on the head Fall from heights.  Pathology:- Primary brain damage - Occuring at impact Secondary brain damage - Occuring due to ongoing neuronal damage, haematoma, brain swelling, Ischaemia Or infection.  Types of head injuries:-  Focal & diffuse Open &
Read more

Humidification, types, methods, supplies, indications.

Image
 Air is moistened because it is passed through the water vapour, Patient is asked to inspire the air by face mask or by the mouth piece.  • Normally air passing through nose& pharynx is continuously moistening the respiratory mucous, if this is inefficient cilial action is impaired & secretions are viscid so need of humidifier to loosen viscid & thick secretions.  • Humidification is moistening of air & gases, this is normal function of upper respiratory tract if this is inefficient then artificial humidifier is required Indications - 1) Patient with tracheostomy/ endotracheal tube   2) patient with oxygen mask       3) when thick secretions Choice of humidifier Ultrasonic type - patient with dry gas Disposal type - patient with respiratory failure like in chronic bronchitis, asthma, emphysema  Method Humidification given by wide boring tube,,,,, short period given before chest clearance done for patient who is not intubated but breathe freely. It is nebulizer method-
Read more

Muscular dystrophy, types, pathophysiology, symptoms, investigation, physiotherapy management

 Muscular dystrophy is a group of rare hereditary progressive disease in which muscle fibers are usually susceptible to damage.  Muscular dystrophies are genetically determined myopathies in which progressive degeneration & wasting of muscles occur.  Dystrophies can be of 3 types  Congenital muscular dystrophy Genetic muscular dystrophy Metabolic muscular dystrophy Epidemiology :- Commonly seen in males.  Pathophysiology :- Deficiency of dystrophin protein (due to defect in the XP21 gene which codes dystrophin)  Loss of properties of skeletal muscle cells membrane ( Dystrophin is essential to maintain the properties of skeletal muscle cells membrane)  Cell break down Release of all contents of cell into the serum Death of cell i.e necrosis of muscle cells Fatigue, weak & dystrophin muscles Elevated serum creatinine phosphokinase levels.  Classification :- based on inheritance & clinical picture X-linked recessive - Duchenne muscular dystrophy, Becker Muscular dystrophy.  Au
Read more