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Analysis of walking improvement with dynamic shoe insoles, using two accelerometers

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  • Tsuruoka, Yuriko
  • Tamura, Yoshiyasu
  • Shibasaki, Ryosuke
  • Tsuruoka, Masako

Abstract

The orthopedics at the rehabilitation hospital found that disorders caused by sports injuries to the feet or caused by lower-back are improved by wearing dynamic shoe insoles, these improve walking balance and stability. However, the relationship of the lower-back and knees and the rate of increase in stability were not quantitatively analyzed. In this study, using two accelerometers, we quantitatively analyzed the reciprocal spatiotemporal contributions between the lower-back and knee of patients with left lower-back pain by means of Relative Power Contribution Analysis. When the insoles were worn, the contribution of the left and right knee relative to the left lower-back pain was up to 26% (p<0.05) greater than without the insoles. Comparing patients with and without insoles, we found that the variance in the step response analysis of the left and right knee decreased by up to 67% (p<0.05). This shows an increase in stability.

Suggested Citation

  • Tsuruoka, Yuriko & Tamura, Yoshiyasu & Shibasaki, Ryosuke & Tsuruoka, Masako, 2005. "Analysis of walking improvement with dynamic shoe insoles, using two accelerometers," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 352(2), pages 645-658.
    • Handle: RePEc:eee:phsmap:v:352:y:2005:i:2:p:645-658
    DOI: 10.1016/j.physa.2005.01.004
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    References listed on IDEAS

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    1. Durbin, James & Koopman, Siem Jan, 2012. "Time Series Analysis by State Space Methods," OUP Catalogue, Oxford University Press, edition 2, number 9780199641178, Decembrie.
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    1. Tsuruoka, Yuriko & Tamura, Yoshiyasu & Shibasaki, Ryosuke, 2007. "Reciprocal contribution analysis of the left and right hips while walking," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 384(2), pages 535-541.

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