The Strength-Duration Curve for E-Stim EXPLAINED

The video tutorial explains the strength duration curve, focusing on pulse duration and intensity. It covers how to interpret the curve, the types of nerve fibers involved, and the differences between acupuncture and conventional settings. The tutorial also discusses individual differences in patient response and how to adjust settings for comfort.

What does the horizontal axis on the strength duration curve represent?

• Current strength

• Pulse duration

• Frequency

• Intensity

How is intensity typically set on most machines?

• According to pulse duration

• As a specific number of milliamps

• As an arbitrary number

• Based on frequency

Which curve on the graph represents motor neurons?

• Blue curve

• Green curve

• Purple curve

• Red curve

In conventional TENS settings, which type of nerve fibers are primarily stimulated?

• A delta fibers

• C nerve fibers

• A beta sensory fibers

• Denervated muscle fibers

What is the typical pulse duration range for acupuncture settings on TENS?

• 50 to 80 microseconds

• 300 to 500 microseconds

• 100 to 150 microseconds

• 150 to 300 microseconds

What might a patient experience if the pulse duration crosses the green curve?

• No sensation

• Muscle twitch

• Sharp pain

• Tingling sensation

What is a common effect of stimulating A beta sensory fibers?

• Tingling sensation

• Muscle contraction

• Dull pain

• Sharp pain

What is the primary goal of the acupuncture setting on TENS?

• To avoid any sensation

• To achieve muscle contraction

• To stimulate A beta sensory fibers

• To reduce frequency

How can patient comfort be increased if they experience discomfort during treatment?

• Decrease intensity

• Increase frequency

• Increase pulse duration

• Decrease frequency

Why might two patients experience different sensations with the same settings?

• Varying room temperatures

• Individual differences in nerve response

• Different machine brands

• Incorrect machine calibration