What is the recommended ramp time in NMES and why?

• A. 1–2 seconds to gradually increase current, improving comfort and reducing joint shock.
• B. 0.5–1 second to minimize fatigue.
• C. 2–5 seconds to maximize muscle activation.
• D. No ramp time is necessary; abrupt onset.

Answer: (A)

The key idea is to smooth out how the current starts during NMES. Using a ramp time of about 1–2 seconds lets the stimulation gradually rise to its peak instead of jumping instantly to full intensity. That gradual onset gives the nerves and muscles time to adapt, which reduces the uncomfortable “shock” to the joint and tissues and makes the contraction feel more tolerable. With this gentler start, patients can tolerate higher stimulation levels, leading to a stronger, more controlled contraction without the abrupt discomfort that can cause withdrawal or poor performance. If the ramp is too short, the onset can feel abrupt and painful; if it’s too long, it slows the session and can blunt the peak contraction, reducing efficiency.