Correlation analysis between surface electromyography and continuous-wave  near-infrared spectroscopy parameters during isometric exercise to  volitional fatigue

Ömer ŞAYLİ; Ata AKIN; Hasan Birol ÇOTUK

Makale detayları

Correlation analysis between surface electromyography and continuous-wave near-infrared spectroscopy parameters during isometric exercise to volitional fatigue

Yazarlar:

Ömer ŞAYLİ | Ata AKIN | Hasan Birol ÇOTUK

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Electrical Engineering and Computer Science 2014 Vol.22 Issue 3, pp.780-793

Belge Tipi:

Makale

Yayın Tarihi:

5/2014

Belge Dili:

Türkçe

Document ID (Org No.):

2000743022

Sıklık:

İki Aylık

eISSN:

1303-6203

pISSN:

1300-0632

Özet:

 

In this study, the process of muscular fatigue was  examined using surface electromyography (sEMG) and continuous-wave  near-infrared spectroscopy (cw-NIRS) simultaneously during an isometric hand  grip exercise at 50% and 75% of the maximal voluntary contraction  (MVC), sustained until volitional fatigue. The mean frequency of the sEMG  decreased during the whole exercise, whereas the root mean square had a  tendency to increase. Oxyhemoglobin/deoxyhemoglobin concentration changes  computed with cw-NIRS were found to exhibit a fast linear decrease/increase  in the first 10--20 s of the exercise, the so-called fast phase, followed by  a plateau-like slow phase. The change rates were higher at 75% MVC for  both the sEMG and cw-NIRS parameters. Significant correlations were found,  especially at 50% MVC, between the sEMG parameters computed for the whole  exercise and cw-NIRS parameters computed from the early region of the  exercise, i.e. infection duration and amplitude changes to the inflection  point. The findings emphasize the potential of cw-NIRS for muscle studies.

 

In this study, the process of muscular fatigue was  examined using surface electromyography (sEMG) and continuous-wave  near-infrared spectroscopy (cw-NIRS) simultaneously during an isometric hand  grip exercise at 50% and 75% of the maximal voluntary contraction  (MVC), sustained until volitional fatigue. The mean frequency of the sEMG  decreased during the whole exercise, whereas the root mean square had a  tendency to increase. Oxyhemoglobin/deoxyhemoglobin concentration changes  computed with cw-NIRS were found to exhibit a fast linear decrease/increase  in the first 10--20 s of the exercise, the so-called fast phase, followed by  a plateau-like slow phase. The change rates were higher at 75% MVC for  both the sEMG and cw-NIRS parameters. Significant correlations were found,  especially at 50% MVC, between the sEMG parameters computed for the whole  exercise and cw-NIRS parameters computed from the early region of the  exercise, i.e. infection duration and amplitude changes to the inflection  point. The findings emphasize the potential of cw-NIRS for muscle studies.

Makale detayları

Correlation analysis between surface electromyography and continuous-wave near-infrared spectroscopy parameters during isometric exercise to volitional fatigue

Yazarlar: Ömer ŞAYLİ | Ata AKIN | Hasan Birol ÇOTUK

Yayıncı: TUBITAK

Dergi: Turkish Journal of Electrical Engineering and Computer Science 2014 Vol.22 Issue 3, pp.780-793

Belge Tipi: Makale

Yayın Tarihi: 5/2014

Belge Dili: Türkçe

Document ID (Org No.): 2000743022

Sıklık: İki Aylık

eISSN: 1303-6203

pISSN: 1300-0632

Sayı

Yazarlar:

Ömer ŞAYLİ | Ata AKIN | Hasan Birol ÇOTUK

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Electrical Engineering and Computer Science 2014 Vol.22 Issue 3, pp.780-793

Belge Tipi:

Makale

Yayın Tarihi:

5/2014

Belge Dili:

Türkçe

Document ID (Org No.):

2000743022

Sıklık:

İki Aylık

eISSN:

1303-6203

pISSN:

1300-0632