An electrooptical muscle contraction sensor

Alessio Chianura, Mario E. Giardini

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)


An electrooptical sensor for the detection of muscle contraction is described. Infrared light is injected into the muscle, the backscattering is observed, and the contraction is detected by measuring the change, that occurs during muscle contraction, between the light scattered in the direction parallel and perpendicular to the muscle cells. With respect to electromyography and to optical absorption-based sensors, our device has the advantage of lower invasiveness, of lower sensitivity to electromagnetic noise and to movement artifacts, and of being able to distinguish between isometric and isotonic contractions.

Original languageEnglish
Pages (from-to)731-734
Number of pages4
JournalMedical & Biological Engineering & Computing
Issue number7
Publication statusPublished - Jul 2010


  • Muscle contraction
  • Optical device
  • Infrared
  • Isometric
  • Isotonic


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