How long is the duration of relief for low TENS?

The duration of relief for low-frequency TENS (Transcutaneous Electrical Nerve Stimulation) is generally classified around several hours. This is due to the physiological effects of low TENS, which typically targets the pain modulation pathways more effectively over an extended period. Low TENS is often used to facilitate the release of endorphins and can lead to a longer-lasting analgesic effect compared to high-frequency TENS, which tends to provide more immediate but shorter relief.

While other durations might be relevant in different contexts or under specific conditions, the choice that indicates several hours aligns best with the typical clinical findings and literature surrounding low-frequency TENS applications in pain management. Hence, the assertion that relief lasts for hours accurately reflects the expectations and experiences reported by practitioners and patients using this form of electrical stimulation for pain relief.