Role of proprioceptors in chronic musculoskeletal pain

Abstract

Abstract Proprioceptors are non‐nociceptive low‐threshold mechanoreceptors. However, recent studies have shown that proprioceptors are acid‐sensitive and express a variety of proton‐sensing ion channels and receptors. Accordingly, although proprioceptors are commonly known as mechanosensing neurons that monitor muscle contraction status and body position, they may have a role in the development of pain associated with tissue acidosis. In clinical practice, proprioception training is beneficial for pain relief. Here we summarize the current evidence to sketch a different role of proprioceptors in ‘non‐nociceptive pain’ with a focus on their acid‐sensing properties.

Keywords

• chronic musculoskeletal pain
• glutamate
• lactate
• muscle spindle
• proprioceptors
• substance P