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The development of a novel biofeedback system for the evaluation, recording, control and correction of the spinal posture

Aim

The goal of this study was to develop a system which controls and records the posture and the spinal curvature for both diagnostic and therapeutic use.

Background

The system consists of a sensor PCB (60 × 40 mm, 50 g) that is placed at the back of the patient, using an adhesive material. Biomechanical analysis (BMA) of the spine with the Spinalmouse® system was formerly used to show the abnormal levels of the spine and indicate the sensor's placement. The practitioner sets the neutral position (or reference position) and can monitor and record the patient's spinal posture in real time, for 12 continuous hours. The data is also stored in the sensor's memory and can be downloaded to a PC. The flexion and extension, as well as the lateral bending limits are set and an audio signal or a low electric stimulus, (feedback) warns the patient when he/she reaches them. How many times and how long the patient remained beyond the preset limits is also recorded.

Patient population

To evaluate our system, 40 subjects (aged: 20 ± 5.4 y) with abnormal spine curves, participated in our study.

Results

The BMA of the participants, before and after a 4 hours' session, showed a significant (p < 0.05) improvement of their posture. The participants gave 8 ± 2.3 (max: 10 scale) score in their gratification.

Conclusion

The system successfully works as an advanced biofeedback therapy method that enhances self-correction of the undesirable posture and as a diagnostic tool.

References

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    Wong MS, Mak AF, Luk KD, Evans JH, Brown B: Effectiveness of audio-biofeedback in postural training for adolescent idiopathic scoliosis patients. Prosthet Orthot Int. 2001, 25 (1): 60-70. 10.1080/03093640108726570.

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    Metherall P, Dymond EA, Gravill N: Posture control using electrical stimulation biofeedback: a pilot study. J Med Eng Technol. 1996, 20 (2): 53-9. 10.3109/03091909609008380.

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    Maki H, Yonczawa Y, Ogawa H, Sato H, Hahn AW, Caldwell WM: A welfare facility resident care support system. Biomed Sci Instrum. 2004, 40: 480-3.

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Author information

Correspondence to Elias Kallistratos.

Rights and permissions

Open Access This article is published under license to BioMed Central Ltd. This is an Open Access article is distributed under the terms of the Creative Commons Attribution 2.0 International License (https://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Keywords

  • Patient Population
  • Diagnostic Tool
  • Neutral Position
  • Audio Signal
  • Electric Stimulus