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A Measurement System for Rounded Shoulder Posture using a Wearable Stretch Sensor 원문보기

Journal of biomedical engineering research : the official journal of the Korean Society of Medical & Biological Engineering, v.39 no.1, 2018년, pp.10 - 15  

Nguyen, Manh Thang (Interdisciplinary Program of Medical & Biological Engineering, Graduate School, University of Ulsan) ,  Dang, Quoc Khanh (Interdisciplinary Program of Medical & Biological Engineering, Graduate School, University of Ulsan) ,  Kim, Younghoon (Interdisciplinary Program of Medical & Biological Engineering, Graduate School, University of Ulsan) ,  Chee, Youngjoon (Interdisciplinary Program of Medical & Biological Engineering, Graduate School, University of Ulsan)

Abstract ▼ AI-Helper 아이콘AI-Helper

In this paper, we present a wearable measurement system for monitoring rounded shoulders. The system contains a shoulder correction band and a stretch sensor that can correct and measure shoulder posture, respectively. The capacitance of the stretch sensor changes linearly according to changes in th...

주제어

#Rounded shoulders   #Stretch sensor   #Motion analysis system   #Posture correcting band  

AI 본문요약
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제안 방법

  • Each subject was measured three times during the experiment. Each time, the subject sat with a 90o angle between the femur and tibia, then placed their shoulder for three seconds in each of five different degrees of shoulder roundedness, ranging from a neutral upright posture to maximally rounded shoulder posture.
  • This research has demonstrated that the stretch sensor was able to estimate the rounded shoulders, the evaluation of which was conducted by using a camera system. The sensor showed a high relation between the changes in FSA and the capacitance, of which the correlation coefficients were larger than 0.

대상 데이터

  • Before performing the experiments, photo-reflective markers were attached to three bony points on the back of each subject: C7 (the vertebrae of the spine), and the left and right acromion process, as shown in Figure 3. Data were collected from two systems simultaneously: the camera system (motion analysis system, OptiTrack, Oregon, USA) and the sensor module. The camera system consisted of six cameras placed around the subject, who is sitting, and connected to a computer.
  • Data were collected from two systems simultaneously: the camera system (motion analysis system, OptiTrack, Oregon, USA) and the sensor module. The camera system consisted of six cameras placed around the subject, who is sitting, and connected to a computer. The sensor module was attached to the PCB and the module’s data were recorded by a mobile application.
  • The experiment was conducted with nine healthy young male participants (age = 27 ± 3 years, height =171.5 ± 4.5 cm, and weight = 65 ± 6.7 kg) who had no history of back pain, spinal surgery, any kind of injuries, or any disorder affecting the cervical, thoracic and lumbar regions.

데이터처리

  • The correlation coefficients of each subject were calculated by taking the average of the correlation coefficients of the subject’s three times of measurements.
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참고문헌 (7)

  1. T.S. Roddey, S.L. Olson and S.E. Grant, "The Effect of Pectoralis Muscle Stretching on the Resting Position of the Scapula in Persons with Varying Degrees of Forward Head/Rounded Shoulder Posture," Journal of Manual & Manipulative Therapy, vol. 10, no. 3, pp. 124-128, 2002. 

    상세보기 crossref

  2. B. Valachi and K. Valachi, "Mechanisms leading to musculoskeletal disorders in dentistry," The Journal of the American Dental Association, vol. 134, no. 10, pp. 1344-1350, 2003. 

    상세보기 crossref

  3. C.A. Thigpen, D.A. Padua, L.A. Michener, K. Guskiewicz, C. Giuliani, J.D. Keener and Stergiou, "Head and shoulder posture affect scapular mechanics and muscle activity in overhead tasks," Journal of Electromyography and Kinesiology, vol. 20, no. 4, pp. 701-709, 2010. 

    상세보기 crossref

  4. S.J. Edmondston, H.Y. Chan, G. Chi Wing Ngai, M.L.R. Warren, J.M. Williams, S. Glennon and K. Netto, "Postural neck pain: An investigation of habitual sitting posture, perception of 'good' posture and cervicothoracic kinaesthesia," Manual Therapy, vol. 12, no. 4, pp. 363-371, 2007. 

    상세보기 crossref

  5. C. Mattmann, "Body posture detection using strain sensitive clothing", Doctoral Thesis, 2008. 

  6. https://www.stretchsense.com/fabric-stretch-sensor/, accessed on Jan. 01, 2018. 

  7. Q.L. Sawyer, "Effects of forward head rounded shoulder posture on shoulder girdle flexibility, range of motion, and strength," Master Thesis, 2006. 

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