Physiotherapy: Interferential Stimulation
30 Questions
0 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What happens to the resistance of the skin as the frequency of the stimulating current increases?

  • It remains constant
  • It becomes variable
  • It increases
  • It decreases (correct)

    • What is the approximate impedance of the skin at 50 Hz?

  • 4000 ohms
  • 40 ohms
  • 50 ohms
  • 3200 ohms (correct)

    • What is the result of applying a stimulating frequency of 4000 Hz?

  • More discomfort is experienced
  • Less electrical energy is required (correct)
  • The skin impedance increases
  • The current is blocked by the skin

    • What is the shape of the current field created by perpendicular interference of currents?

    <p>Cloverleaf</p> Signup and view all the answers

    What is the primary purpose of interferential therapy?

    <p>To reduce stimulation of cutaneous sensory nerves near the electrodes</p> Signup and view all the answers

    What is the effect of amplitude modulation on the cloverleaf field?

    <p>It expands the field</p> Signup and view all the answers

    What is the primary use of interferential current in pain management?

    <p>To manage acute and chronic pain of different origins</p> Signup and view all the answers

    At what frequency does the stimulation of the sensory level intensities occur to mask pain symptoms?

    <p>100 Hz</p> Signup and view all the answers

    What is the result of stimulation at low frequency (1-10 Hz) in motor stimulation?

    <p>Series of twitches</p> Signup and view all the answers

    What is one of the mechanisms of pain control by interferential therapy?

    <p>Decreased activity of the sympathetic ganglion and sympathetic nerves</p> Signup and view all the answers

    What is an application of interferential current in neuromuscular stimulation?

    <p>Relaxation of muscle spasm</p> Signup and view all the answers

    What is the effect of interferential stimulation on chronic post-traumatic edema?

    <p>Reduced edema</p> Signup and view all the answers

    What frequency range is often used in interferential stimulation?

    <p>10-25 Hz</p> Signup and view all the answers

    What is an indication for the use of interferential current in circulatory disorders?

    <p>Depressing the activity of certain cervical and lumbosacral sympathetic ganglia</p> Signup and view all the answers

    What is an effect of interferential stimulation on soft tissue?

    <p>It accelerates ossification and wound healing</p> Signup and view all the answers

    What is a common symptom of Raynaud's disease?

    <p>Sudden contraction of small arteries supplying the fingers and toes upon exposure to cold</p> Signup and view all the answers

    What is Burger's disease?

    <p>A combination of thrombosis, inflammation, and obliteration of small and medium-sized arteries</p> Signup and view all the answers

    What is the mechanism by which interferential stimulation increases blood flow?

    <p>By increasing vasodilatation through the stimulation of parasympathetic nerve fibers</p> Signup and view all the answers

    What is the primary difference in electrode placement between the quadripolar and bipolar techniques?

    <p>The number of electrodes used</p> Signup and view all the answers

    What is the advantage of using the bipolar technique in certain circumstances?

    <p>It is more effective for localized stimulation</p> Signup and view all the answers

    What is the difference in tissue penetration between the quadripolar and bipolar techniques?

    <p>The quadripolar technique penetrates deeper</p> Signup and view all the answers

    What is the characteristic of the current field created by the quadripolar technique?

    <p>It branches off at 45° from the center</p> Signup and view all the answers

    When is the bipolar technique commonly used?

    <p>When muscle contraction is the goal</p> Signup and view all the answers

    What is the difference in the type of sensation experienced with the quadripolar and bipolar techniques?

    <p>The bipolar technique is more painful</p> Signup and view all the answers

    What is the purpose of using a sweep frequency in IFC treatment?

    <p>To accommodate the nerve's adaptation to a constant signal</p> Signup and view all the answers

    What is the typical duration of the rise and fall of the sweep frequency in IFC treatment?

    <p>6 seconds</p> Signup and view all the answers

    What is the difference between peak-to-peak and continuous sweeps?

    <p>Peak-to-peak sweeps alternate between the highest and lowest frequencies, while continuous sweeps progressively increase and decrease the frequency</p> Signup and view all the answers

    What is the term for the temporal characteristics of the sweep in IFC treatment?

    <p>Swing</p> Signup and view all the answers

    What is the purpose of modulating the beat frequency in IFC treatment?

    <p>To accommodate the nerve's adaptation to a constant signal</p> Signup and view all the answers

    What is the range of frequencies typically used in IFC treatment for smooth muscle?

    <p>1-10 Hz</p> Signup and view all the answers

    More Like This

    Use Quizgecko on...
    Browser
    Open
    Browser
    Browser