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With the technological revolution, one rising problem in the 21st century is regarding people’s sedentary life. As the time sitting down increases, the sitting balance is prone to be often uneven. This unhealthy balance affects the body structure starting with the back and the legs, leading to pathological discs in the back becoming squashed. Various devices such as biometric chairs were invented to track the sitting postures to prevent these abnormalities. The biometric chair, however, collects its user's data only where the chair is located. For this smart project, an IoT system was assembled to be embedded in the cushion, allowing the user to collect the user's sitting data continuously. Further, its detachability of the cushion from a chair facilitated the user to enjoy its portability.

A prototype device was created to monitor the sitting posture with the Posture Feedback System (SPFS), which applied IoT technology. This device recorded the sitting data, which was acquired from four pressure sensors, and sent to the Thingspeak server from which the data was plotted and analyzed accordingly. The experiment investigated the SPFS effects on the user's sitting posture, divided into three consecutive stages: Pre-SPFS, SPFS Treatment, and Post-SPFS in a comfortable manner without intentional posture adjustment, and our experiment took three weeks. As the pre-SPFS, the user gathered data while sitting on the cushion for 1 hour a day for a week. The data was then reviewed with the user. And, during the following SPFS treatment, the user sat on the cushion with SPFS intentionally to correct the sitting posture for every hour. Finally, one week later, another acquisition of the post-SPFS data was performed at this time with no intentional effort to change posture. The data were processed and compared to see how much the SPFS system has improved the user's posture. The study concluded that SPFS could improve the user's sitting posture to a more balanced condition. This study might contribute to the prevention of sitting disease before being further aggravated.

Arduino IoT system, balance algorithm, posture feedback system, sitting disease, smart cushion

Article Details

How to Cite
SHIN, O., & KIM, T. (2021). DEVELOPING A SMART CUSHION TO CORRECT SITTING PATTERN USING ARDUINO IOT. Journal of Medicine and Health Research, 6(1), 12-25. Retrieved from
Original Research Article


Chet C Sherwood, Francys Subiaul, Tadeusz W Zawadzki. A natural history of the human mind: tracing evolutionary changes in brain and cognition. Journal of Anatomy. 2008;212 (4):426-454.

Craig Stanford. Detailed critical review of the hunting apes. MFHEI Multifactor Health and Education Initiative, ISBN 978-0-9871469-3-9, Published by David Joseph Vance, Edition; 2011.

Andreas D. Baxevanis, and BF. Francis ouellette, "Bioinformatics; A practical guide to the analysis of genes and proteins," ISBN 0-471-38391-0, printed by John Wiley & Sons, Inc; 2001.

Guillaume Bourque, Kathleen H Burns, Mary Gehring, Vera Gorbunova, Andrei Seluanov, Molly Hammell, et al. Ten things you should know about transposable elements. Genome Biology. 2018;19:1–12,

Wayne F Cascio, Ramiro Montealegre. How technology is changing work and organizations. Effects of Technology, Annual Review of Organizational Psychology and Organizational Behavior. 2016;349-375.

Frank W Booth, Christian K Roberts, Matthew J Laye. Lack of exercise is a major cause of chronic disease. Compr Physio 2012;2(2):1143-1211.

Ronald Labonte. Globalization and health. International Encyclopedia of the Social and Behavioral Sciences. 2015;198-205.

Gerald Malanga. Sitting disease and its impact on your spine. Spine Universe Website, Remedy Health Media; 2021.

Harpal S Buttar, Timao Li, Nivedita Ravi. Prevention of cardiovascular diseases: Role of exercise, dietary interventions, obesity, and smoking cession. Exp. Clin. Cardiol. 2005;10(4):229-249.

SHN. Sitting is the new smoking: Truly a silent killer. Sanford Health; 2018.

Thang S Han, Mike EJ Lean. A clinical perspective of obesity, metabolic syndrome, and cardiovascular disease. JRSM Cardiovascular Disease. 2016;5.
DOI: 10.1177/2048004016633371

Neville Owen, Genevieve N Healy, Charles E Matthews, David W Dunstan. Too much sitting: The population-health science of sedentary behavior. Exerc Sport Sci Rev. 2010;38(3):105-113.

Dunstan DW, Howard BJ, Healy GN, Owen N. Too much sitting – A health hazard. Diabetes Research and Clinical Practice. 2012;97(3):368-376.

Jeff K Vallance, Paul A Gardiner, Brigid M Lynch, Adrijana D’Silva, Terry Boyle, Lorian M Taylor, Steven T Johnson, Matthew P Buman, Neville Owen. Evaluating the evidence on sitting, smoking, and health: Is sitting really the new smoking?. Am J. Public Health. 2018;108(11):1478-1482.

Alpa V Patel, Leslie Bernstein, Anusila Deka, Heather Spencer Feigelson, Peter T Campbell, Susan M Gapstur, Graham A Colditz, Michael J Thun. Leisure time spent sitting in relation to total mortality in a prospective cohort of US adults. Am J. Epidemiology. 2010;172(4):419-429.

Diana E De Carvalho. Spine biomechanics of prolonged sitting: Exploring the effect chair features, walking breaks and spine manipulation have on posture and perceived pain in men and women. A Doctoral Thesis of the University of Delaware; 2015.

Bontrup C, Taylor WR, Fliesser M, Visscher R, Green T, Wippert PM, Zemp R. Low back pain and its relationship with sitting behavior among sedentary office workers. Appl. Ergon. 2019;81:102894.
DOI: 10.1016/j. apergo

ZevA App. Proper sitting posture to avoid spine and back pain; 2019.

Jennifer Huizen. Sitting positions for good posture. Medical News Today; 2018.

Headline. 10 daily habits to stop back pain. Healthline; 2017.

John P Higgins. Review: Smartphone applications for patient's health and fitness. The American Journal of Medicine. 2016;129 (1).

Arduino. Getting started with the Arduino Yun. User Guide.

Force Sensitive Resistor Thin Film Pressure Sensor Specification.