Design and Development of a 3-Axis Accelerometer Biofeedback System for Real-Time Correction of Neck Posture for Long-Time Computer Users

Hossein Shirvani, Mahmood Salesi, Mohammad Samadi, Alireza Shamsoddini

DOI: 10.4103/jmss.JMSS_56_20


Background: Due to long-term use of computers and not maintaining the correct position and angle of the body while working with it, various skeletal and muscular problems and pain in the neck area occurs. This study aims to use a biofeedbck system to alert the computer users of an inappropriate angle of their necks, and as a result help them to establish a correct neck position. Method: The user's neck angle is measured using a three dimensional accelerometer and the signal is processed, digitalized, and sent to the computer. User friendly software is designed to process the received data and warn the users when their neck angle is inappropriate. Results: The results show that the application of the biofeedback system reduces the users' total time with inappropriate neck angle to <50%. Conclusion: results demonstrated that training with the biofeedback system has been sufficient to make the habit of maintaining the neck in the correct angle.


Accelerometer, biofeedback, computer users

Full Text:



Evans O, Patterson K. Predictors of neck and shoulder pain in nonsecretarial computer users. Int J Ind Ergon 2000;26:357-65.

Fredriksson K, Alfredsson L, Thorbjörnsson CB, Punnett L, Toomingas A, Torgén M, et al. Risk factors for neck and shoulder disorders: A nested case–control study covering a 24-year period. Am J Ind Med 2000;38:516-28.

Vikat A, Rimpelä M, Salminen JJ, Rimpelä A, Savolainen A, Virtanen SM. Neck or shoulder pain and low back pain in Finnish adolescents. Scand J Public Health 2000;28:164-73.

Haufler AJ, Feuerstein M, Huang GD. Job stress, upper extremity pain and functional limitations in symptomatic computer users. Am J Ind Med 2000;38:507-15.

Schlossberg EB, Morrow S, Llosa AE, Mamary E, Dietrich P, Rempel DM. Upper extremity pain and computer use among engineering graduate students. Am J Ind Med 2004;46:297-303.

Green BN. A literature review of neck pain associated with computer use: Public health implications. J Can Chiropr Assoc 2008;52:161-7.

Tittiranonda P, Burastero S, Rempel D. Risk factors for musculoskeletal disorders among computer users. Occup Med 1999;14:17-38, iii.

Marcus M, Gerr F, Monteilh C, Ortiz DJ, Gentry E, Cohen S, et al. A prospective study of computer users: II. Postural risk factors for musculoskeletal symptoms and disorders. Am J Ind Med 2002;41:236-49.

Gerr F, Marcus M, Ensor C, Kleinbaum D, Cohen S, Edwards A, et al. A prospective study of computer users: I. Study design and incidence of musculoskeletal symptoms and disorders. Am J Ind Med 2002;41:221-35.

Palsson OS, Heymen S, Whitehead WE. Biofeedback treatment for functional anorectal disorders: A comprehensive efficacy review. Appl Psychophysiol Biofeedback 2004;29:153-74.

Giggins OM, Persson UM, Caulfield B. Biofeedback in rehabilitation. J Neuroeng Rehabil 2013;10:60.

Larsson B, Søgaard K, Rosendal L. Work related neck-shoulder pain: A review on magnitude, risk factors, biochemical characteristics, clinical picture and preventive interventions. Best Pract Res Clin Rheumatol 2007;21:447-63.

Chiari L, Dozza M, Cappello A, Horak FB, Macellari V, Giansanti D. Audio-biofeedback for balance improvement: An accelerometry-based system. IEEE Trans Biomed Eng 2005;52:2108-11.

Mirelman A, Herman T, Nicolai S, Zijlstra A, Zijlstra W, Becker C, et al. Audio-biofeedback training for posture and balance in patients with Parkinson's disease. J Neuroeng Rehabil 2011;8:35.

Badawi H, Eid M, El Saddik A. A real-time biofeedback health advisory system for children care. In: 2012 IEEE International Conference on Multimedia and Expo Workshops. Melbourne, VIC, Australia: IEEE; 2012. p. 429-34.

Armstrong B, McNair P, Taylor D. Head and neck position sense. Sports Med 2008;38:101-17.

Tadayon P, Felderhoff T, Staude G, Knopp A. Mobile system for the prevention, diagnosis, and personalized treatment of neck pain under a patient's everyday life circumstances. Curr Dir Biomed Eng 2019;5:257-60.

Liao DY. Design of a secure, biofeedback, head-and-neck posture correction system. In: 2016 IEEE First International Conference on Connected Health: Applications, Systems and Engineering Technologies (CHASE). Washington, DC, USA: IEEE; 2016. p. 119-24.

Zhang J, Zhang H, Dong C, Huang F, Liu Q, Song A. Architecture and design of a wearable robotic system for body posture monitoring, correction, and rehabilitation assist. Int J Soc Robot 2019;11:423-36.

Riandy R, Suya MN, Ratna AN. The development of a wearable biofeedback trainer to increase quality of sitting posture. In: Journal of Physics: Conference Series. Bandung, Indonesia: IOP Publishing; 2019. p. 12067.

Breen PP, Nisar A, Olaighin G. Evaluation of a single accelerometer based biofeedback system for real-time correction of neck posture in computer users. Conf Proc IEEE Eng Med Biol Soc 2009;2009:7269-72.


  • There are currently no refbacks.