Dependence of anticipatory postural adjustments for step initiation on task movement features: A study based on dynamometric and accelerometric data

Laura Rocchi, Martina Mancini, Lorenzo Chiari, Angelo Cappello

Research output: Chapter in Book/Report/Conference proceedingConference contribution

13 Scopus citations

Abstract

The present study investigates the dependence of anticipatory postural adjustments (APA) for step initiation on velocity and length of the first step, by means of both dynamometric data, acquired by a force platform, and accelerometric data, achieved by means of sensor nodes positioned on the lower legs and on the trunk. Results focus on antero-posterior center of pressure (CoP) displacement and antero-posterior accelerations. Peak of backward CoP excursion during APA, considered as magnitude of APA, was found to depend mostly on step velocity, and, in less amount, to step length. Accelerometers detected a reliable accelerometric pattern during APA, and stance leg backward acceleration before stepping presents a peak with a behavior very similar to peak of CoP in terms of dependence on velocity and step. The results allow deduction on the role of APA to control step initiation, and suggest possible promising applications of portable and low-cost accelerometric sensors, to monitor motor performance in several fields as rehabilitation, clinics and closed loop applications.

Original languageEnglish (US)
Title of host publication28th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS'06
Pages1489-1492
Number of pages4
DOIs
StatePublished - Dec 1 2006
Event28th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS'06 - New York, NY, United States
Duration: Aug 30 2006Sep 3 2006

Publication series

NameAnnual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings
ISSN (Print)0589-1019

Other

Other28th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS'06
CountryUnited States
CityNew York, NY
Period8/30/069/3/06

ASJC Scopus subject areas

  • Signal Processing
  • Biomedical Engineering
  • Computer Vision and Pattern Recognition
  • Health Informatics

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    Rocchi, L., Mancini, M., Chiari, L., & Cappello, A. (2006). Dependence of anticipatory postural adjustments for step initiation on task movement features: A study based on dynamometric and accelerometric data. In 28th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS'06 (pp. 1489-1492). [4030158] (Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings). https://doi.org/10.1109/IEMBS.2006.260731