A PTA is using electrical stimulation to increase a patient’s quadriceps strength, as suggested by the supervising physical therapist. Which of the following is the best protocol?

A patient is receiving electrical stimulation for muscle strengthening of the left quadriceps. One electrode from one lead wire, 4x4 inches in size, is placed on the anterior proximal portion of the left quadriceps. Each of two other electrodes from one lead wire are 2x2 inches in size. One of the electrodes is placed on the inferior medial side of the left quadriceps and one on the inferior lateral side of the left quadriceps. This is an example of what type of electrode configuration?

When using electrical stimulation with a unit that plugs into the wall, the PTA must take many different safety precautions. Which of the following precautions would probably not increase the safety to the patient and therapist?

A PTA uses functional electrical stimulation as part of a treatment regimen designed to improve quadriceps strength. Which on:off time ratio would result in the MOST rapid onset of muscle fatigue?

A patient staus post open knee meniscectomy is referred to physical therapy for neuromuscular electrical stimulation. The MOST beneficial frequency of treatment to promote strengthening is :

A PTA is treating a 35-year-old man who has suffered a loss of motor control in the right lower extremity caused by peripheral neuropathy. The assistant applies biofeedback electrodes to the right quadriceps muscle in an effort to increase control and strength of this muscle group. The biofeedback can help achieve this goal in all of the following ways except :