Neurophysiology · functional reading
Mechanoreceptors
Mechanoreceptors are specialized sensory receptors that detect mechanical stimuli (touch, pressure, vibration, stretch) and convert them into nerve signals. This process is called mechanoreception.
Scientific basis
In the skin, several types of low-threshold mechanoreceptors differ in what they detect and in how quickly they adapt: sustained pressure, vibration, stretch, hair movement. In muscles, tendons and joints, specialized receptors (muscle spindles, Golgi tendon organs, joint receptors) provide information about length, tension and movement: these are called proprioceptors.
Connective and fascial tissues also contain endings sensitive to deformation. Together, this information feeds touch, proprioception and the regulation of posture.
Blue Portance / SBNFA™ reading
In the SBNFA™ reading, mechanoreceptors are the gateway for the mechanical information used in postural regulation: pressures, gliding and changes in support become signals that the nervous system integrates. A seat does not “produce” this information; it shapes how support is distributed and how it varies.
Contribution to the analysis of sitting
Seating analysis describes the location, duration and variability of support, that is, part of the mechanical stimulation that mechanoreceptors receive. It does not measure their activity.
Not to be confused with
Mechanotransduction, the cellular response to mechanical stress, which concerns all cells rather than nerve detection; nociceptors, receptors for potentially damaging stimuli; proprioception, a sense built in particular from a subset of mechanoreceptors, the proprioceptors.
Related terms
Proprioception · Mechanotransduction · Fascial innervation · Micro-movements · Nociception
Sources and scope
- Abraira and Ginty (2013): the sensory neurons of touch (Neuron)
- Proske and Gandevia (2012): the proprioceptive senses, body shape and position, movement and muscle force (Physiological Reviews)
Established scientific concept. The precise role of fascial tissue endings in mechanical sensitivity remains to be characterized.
