Investigation of mutual aerobic and lower limb muscular activity during cycling

• Autorzy: Griskevicius P. , Daunoraviciene K. , Pauk J. , Troskovas V.

Identyfikatory

DOI

10.5277/ABB-00169-2014-02

• Języki publikacji: EN

Abstrakty

EN

The evaluation of physical activity is a complex task that requires performing an analysis of muscular activity and aerobic/anaerobic threshold and it is often difficult to observe and propose a single method. The purpose of the article is to evaluate a relation between aerobic capacity and activity of lower limb muscles via changes of muscle’s EMG signal during physical, sub-maximal veloergometric loading. The activity parameters of 5 lower limb muscles such as semitendinosus, rectus femoris, biceps femoris, gastrocnemius medialis, and tibialis anterior were measured and analyzed during the veloergometric exercise tests and the heart rate and the aerobic capacity were estimated from registered data. The obtained aerobic parameters allow setting an individual and overall voluntary physical capacity. The regression oxygen function presented allows analyzing and predicting the ability of subjects to generate energy while maintaining muscle activity during the exercise. The correlation between the consumption of oxygen and constant physical loading time is determined. It was found that comparing VO2max capabilities the physical effort in the male group was 16% higher than in women. Oxygen consumption and maximum muscle effort dependency on the load time was established. It was observed that the maximal muscular effort appeared before VO2max reached maximal limit in both groups. The maximal oxygen consumption is achieved in the middle or sometimes at the beginning (depending on load) of exercise while maximal muscular effort was found in several phases of cycling: at the beginning and at the end of loading time.

Słowa kluczowe

EN

iEMG; aerobic capability; physical activity; veloergometry; muscular effort; lower limbs; muscular fatigue

PL

iEMG; aerobik; wysiłek fizyczny; mięśnie

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Acta of Bioengineering and Biomechanics
• Rocznik: 2015
• Tom: Vol. 17, no. 2
• Strony: 109--118
• Opis fizyczny: Bibliogr. 24 poz., rys., tab., wykr.

Twórcy

autor

Griskevicius P.

• Vilnius Gediminas Technical University, Vilnius, Lithuania

autor

Daunoraviciene K.

• Vilnius Gediminas Technical University, Vilnius, Lithuania.

autor

Pauk J.

• Białystok University of Technology, Białystok, Poland

autor

Troskovas V.

• Vilnius Gediminas Technical University, Vilnius, Lithuania

Bibliografia

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