Sustained fatigue assessment during isometric exercises with time-domain near infrared spectroscopy and surface electromyography signals | Zendy

Alessandro Scano | Zendy; Ileana Pirovano | Zendy; M. E. Manunza | Zendy; Lorenzo Spinelli | Zendy; Davide Contini | Zendy; Alessandro Torricelli | Zendy; Rebecca Re | Zendy

Open Access

Sustained fatigue assessment during isometric exercises with time-domain near infrared spectroscopy and surface electromyography signals

Author(s) -

Alessandro Scano,

Ileana Pirovano,

M. E. Manunza,

Lorenzo Spinelli,

Davide Contini,

Alessandro Torricelli,

Rebecca Re

Publication year - 2020

Publication title -

biomedical optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.362

H-Index - 86

ISSN - 2156-7085

DOI - 10.1364/boe.403976

Subject(s) - isometric exercise , electromyography , gold standard (test) , biomedical engineering , physical medicine and rehabilitation , muscle fatigue , medicine , time domain , computer science , computer vision

The effect of sustained fatigue during an upper limb isometric exercise is presented to investigate a group of healthy subjects with simultaneous time-domain (TD) NIRS and surface electromyography (sEMG) recordings on the deltoid lateralis muscle. The aim of the work was to understand which TD-NIRS parameters can be used as descriptors for sustained muscular fatigue, focusing on the slow phase of this process and using median frequency (MF) computed from sEMG as gold standard measure. It was found that oxygen saturation and deoxy-hemoglobin are slightly better descriptors of sustained fatigue, than oxy-hemoglobin, since they showed a higher correlation with MF, while total-hemoglobin correlation with MF was lower.

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