Effects of a stocking on plantar sensation in individuals with and without ankle instability

Muscle Nerve. 2017 Apr;55(4):513-519. doi: 10.1002/mus.25362. Epub 2016 Dec 26.

Abstract

Introduction: It is unknown whether footwear has a beneficial or deleterious effect on cutaneous sensitivity. We aimed to test a preliminary model of footwear and its effect on tactile perception among groups of controls, copers, and chronic ankle instability participants.

Methods: Light-touch thresholds were obtained for 45 participants (age: 20.2 ± 2.8 years; height: 167.6 ± 9.8 cm; mass: 66.3 ± 14.7 kg) using Semmes-Weinstein monofilaments at the head of the first metatarsal (1MT), base of the fifth metatarsal (5MT), and calcaneus (CAL). Baseline measurements were compared with those taken after wearing a nylon stocking for 5 min.

Results: Thresholds were increased at all 3 sites when the stocking was worn (P < 0.05). Controls had an increase at 1MT, copers had an increase at 5MT and CAL, and chronic ankle instability had an increase at CAL.

Conclusions: Cutaneous thresholds increase when subjects wear a nylon stocking, a model for the sensory effects of footwear. A history of ankle injury appears to influence which sites have altered sensibility. Muscle Nerve, 2016. Muscle Nerve 55: 513-519, 2017.

Keywords: Semmes-Weinstein monofilaments; chronic ankle instability; footwear; mechanoreceptor; sensation.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adaptation, Psychological
  • Adolescent
  • Ankle / innervation*
  • Female
  • Foot / innervation
  • Humans
  • Joint Instability / physiopathology*
  • Male
  • Physical Stimulation
  • Sensory Thresholds / physiology*
  • Touch / physiology*
  • Young Adult