11 December 1996 Optical NIR monitoring of skeletal muscle contraction
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Abstract
NIR spectroscopy allows monitoring of muscle oxygenation and perfusion during contraction. The knowledge of modifications of blood characteristics in body tissues has relevant clinical interest. A compact and reliable device, which makes use of two laser diodes at 750 and 810 nm coupled with the skin surface through optical fibers, was tested. NIR and surface EMG signals during isometric contractions both in normal and ischaemic conditions were analyzed. A set of parameters from the 750/810 spectroscopic curve was analyzed. Two different categories depending on the recovery rate from maximal voluntary contraction to basal oxygenation conditions were found. This behavior can give information about metabolic modifications during muscle fatigue. Interesting results in testing isokinetic rehabilitation training were also obtained.
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Paolo Lago, Paolo Lago, Andrea Gelmetti, Andrea Gelmetti, Roberta Pavesi, Roberta Pavesi, Daniela Zambarbieri, Daniela Zambarbieri, } "Optical NIR monitoring of skeletal muscle contraction", Proc. SPIE 2927, Optical and Imaging Techniques for Biomonitoring II, (11 December 1996); doi: 10.1117/12.260658; https://doi.org/10.1117/12.260658
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