What is the most common ramp time for NMES?

• A. 0.5 seconds
• B. 2 seconds
• C. 4 seconds
• D. 6 seconds

Answer: (B)

Ramp time is the period during which the electrical current rises from zero to its peak within each stimulus cycle. The most common setting is about two seconds because it provides a smooth, gradual onset of contraction that patients typically tolerate well. This moderate ramp reduces the abrupt, painful jolts that can occur with a very quick onset, making it easier for people to endure the muscle contraction and complete longer or more functional sessions. If the ramp is very short, the contraction can feel sudden and uncomfortable; if it’s too long, the onset is sluggish, which can interfere with timing in functional tasks and unnecessarily extend the stimulation period. So, two seconds strikes a practical balance for most NMES applications.