Real-time sitting posture correction system based on highly durable and washable electronic textile pressure sensors

Minjeong Kim, Hyoungjun Kim, Jinwoo Park, Kwang Koo Jee, Jung Ah Lim, Min Chul Park

Research output: Contribution to journalArticle

7 Citations (Scopus)


A real-time sitting posture correction system based on highly durable and washable textile pressure sensors was demonstrated. Textile pressure sensors consisted of conducting Ni-Ti alloy fiber with an excellent fatigue resistance and a pressure-sensitive polyurethane elastomer resulted in reliable capacitance change by an applied pressure in a range from 10 to 180 kPa with a sensitivity of 2.39 kPa−1. The sensing performance was 100% maintained even upon repeated sitting action over 1000 times and harsh washing in detergent-solution. By analyzing the pressure detected at the different positions under the hip, thigh, and back, seven types of sitting postures including upright sitting, sitting with one leg crossed, and sitting with both legs lifted were successfully classified. Finally, real-time display on a monitor of the changes in sitting posture was simulated in order to allow the users to recognize and correct their body balance.

Original languageEnglish
Pages (from-to)394-400
Number of pages7
JournalSensors and Actuators, A: Physical
Publication statusPublished - 2018 Jan 1



  • Capacitance type sensor
  • Polyurethane-coated Ni-Ti alloy fibers
  • Sitting posture correction
  • Washable textile pressure sensor

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Instrumentation
  • Condensed Matter Physics
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Electrical and Electronic Engineering

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