Symmetry of electromechanical delay, peak torque and rate of force development in knee flexors and extensors in female and male subjects

Czasopismo : Acta of Bioengineering and Biomechanics
Tytuł artykułu : Symmetry of electromechanical delay, peak torque and rate of force development in knee flexors and extensors in female and male subjects

Autorzy :
Rumian, Ł.
Department of Biomaterials, Faculty of Materials Science and Ceramics, AGH University of Science and Technology, Krakow, Poland,
Reczyńska, K.
Department of Biomaterials, Faculty of Materials Science and Ceramics, AGH University of Science and Technology, Krakow, Poland,
Wrona, M.
Faculty of Electrical Engineering, Automatics, Computer Science and Biomedical Engineering, AGH University of Science and Technology, Krakow, Poland,
Tiainen, H.
Department of Biomaterials, Institute for Clinical Dentistry, University of Oslo, Oslo, Norway,
Haugen, H. J.
Department of Biomaterials, Institute for Clinical Dentistry, University of Oslo, Oslo, Norway,
Pamuła, E.
Department of Biomaterials, Faculty of Materials Science and Ceramics, AGH University of Science and Technology, Krakow, Poland, epamula@agh.edu.pl,
Turek, A.
Centre of Polymer and Carbon Materials, Polish Academy of Sciences, Zabrze, Poland, a.turek75@gmail.com,
Kasperczyk, J.
Centre of Polymer and Carbon Materials, Polish Academy of Sciences, Zabrze, Poland,
Jelonek, K.
Centre of Polymer and Carbon Materials, Polish Academy of Sciences, Zabrze, Poland,
Borecka, A.
Centre of Polymer and Carbon Materials, Polish Academy of Sciences, Zabrze, Poland,
Janeczek, H.
Centre of Polymer and Carbon Materials, Polish Academy of Sciences, Zabrze, Poland,
Libera, M.
Centre of Polymer and Carbon Materials, Polish Academy of Sciences, Zabrze, Poland,
Gruchlik, A.
Centre of Polymer and Carbon Materials, Polish Academy of Sciences, Zabrze, Poland,
Dobrzyński, P.
Centre of Polymer and Carbon Materials, Polish Academy of Sciences, Zabrze, Poland,
Wojda, S.
Faculty of Mechanical Engineering, Białystok University of Technology, Białystok, Poland,
Szoka, B.
Faculty of Mechanical Engineering, Białystok University of Technology, Białystok, Poland,
Sajewicz, E.
Faculty of Mechanical Engineering, Białystok University of Technology, Białystok, Poland, e.sajewicz@pb.edu.pl,
Kiel-Jamrozik, M.
Silesian University of Technology, Faculty of Biomedical Engineering, Department of Biomaterials and Medical Devices Engineering, Zabrze, Poland, marta.kiel-jamrozik@polsl.pl,
Szewczenko, J.
Silesian University of Technology, Faculty of Biomedical Engineering, Department of Biomaterials and Medical Devices Engineering, Zabrze, Poland,
Basiaga, M.
Silesian University of Technology, Faculty of Biomedical Engineering, Department of Biomaterials and Medical Devices Engineering, Zabrze, Poland,
Nowińska, K.
Silesian University of Technology, Faculty of Mining and Geology, Institute of Applied Geology, Gliwice, Poland,
Salasek, M.
Department of Orthopaedics and Traumatology, Faculty of Medicine of Charles University and Faculty Hospital in Plzeň, Czech Republic, martin.salasek@seznam.cz,
Jansova, M.
Department of Mechanics, Faculty of Applied Sciences and New Technologies for Information Society of West Bohemian University in Plzeň, Czech Republic.,
Křen, J.
Department of Mechanics, Faculty of Applied Sciences and New Technologies for Information Society of West Bohemian University in Plzeň, Czech Republic,
Pavelka, T.
Department of Orthopaedics and Traumatology, Faculty of Medicine of Charles University and Faculty Hospital in Plzeň, Czech Republic,
Weisova, D.
Department of Orthopaedics and Traumatology, Faculty of Medicine of Charles University and Faculty Hospital in Plzeň, Czech Republic,
Reimann, Ł.
Institute of Materials Engineering and Biomaterials, Faculty of Mechanical Engineering, Silesian University of Technology, Gliwice, Poland, lukasz.reimann@polsl.pl,
Żmudzki, J.
Institute of Materials Engineering and Biomaterials, Faculty of Mechanical Engineering, Silesian University of Technology, Gliwice, Poland,
Dobrzański, L.
Institute of Materials Engineering and Biomaterials, Faculty of Mechanical Engineering, Silesian University of Technology, Gliwice, Poland,
Szpala, A.
Department of Biomechanics, University School of Physical Education in Wrocław, Wrocław, Poland, agnieszka.szpala@awf.wroc.pl,
Rutkowska-Kucharska, A.
Department of Biomechanics, University School of Physical Education in Wrocław, Wrocław, Poland,
Stawiany, M.
Department of Biomechanics, University School of Physical Education in Wrocław, Wrocław, Poland,
Abstrakty : Purpose: The aim of the study was to evaluate electromechanical delay (EMD), peak torque (PT) and rate of force development (RFD) in selected muscles of right and left lower extremities in groups of female and male subjects. Methods: The study evaluated 9 volunteer female subjects (mean ± SD: age: 21.67 ± 0.87 years; height: 168 ± 7 cm; body mass: 59.44 ± 4.8 kg) and 10 male university students (mean ± SD: age 22 ± 1.25 years; height: 179 ± 6 cm; body mass: 74.3 ± 5.1 kg) from the Faculty of Physical Education. Muscle torques and electromyographic activity were measured for knee flexors and extensors in static conditions, separately for the right and the left lower extremities. During the measurements, the subjects generated the maximum torque as fast as possible. Surface electrodes were placed on the right and left lower extremities on the following muscles: rectus femoris, vastus lateralis (m.VL), vastus medialis and biceps femoris. Results: Symmetry of EMD, RFD and “flexors-extensors” ratio was found in the muscles of the right and left lower extremities (with an exception of m.VL) in the group of male and female subjects. Statistical analysis demonstrated the presence of asymmetry in PT (297.66 vs. 272.05 N⋅m) and relative force in knee extensors in the group of men (3.90 vs. 3.54 N⋅m⋅kg–1). Conclusions: Symmetry of EMD and asymmetry of PT might suggest that the cause of asymmetry of the muscular force is mainly morphological characteristics of the muscle rather than the process of controlling its activity.

Słowa kluczowe : elektromiografia, gender, kończyna dolna, electromyography, gender, lower extremity,
Wydawnictwo : Oficyna Wydawnicza Politechniki Wrocławskiej
Rocznik : 2015
Numer : Vol. 17, nr 1
Strony : 61 – 68
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DOI :
Cytuj : Rumian, Ł. ,Reczyńska, K. ,Wrona, M. ,Tiainen, H. ,Haugen, H. J. ,Pamuła, E. ,Turek, A. ,Kasperczyk, J. ,Jelonek, K. ,Borecka, A. ,Janeczek, H. ,Libera, M. ,Gruchlik, A. ,Dobrzyński, P. ,Wojda, S. ,Szoka, B. ,Sajewicz, E. ,Kiel-Jamrozik, M. ,Szewczenko, J. ,Basiaga, M. ,Nowińska, K. ,Salasek, M. ,Jansova, M. ,Křen, J. ,Pavelka, T. ,Weisova, D. ,Reimann, Ł. ,Żmudzki, J. ,Dobrzański, L. ,Szpala, A. ,Rutkowska-Kucharska, A. ,Stawiany, M. , Symmetry of electromechanical delay, peak torque and rate of force development in knee flexors and extensors in female and male subjects. Acta of Bioengineering and Biomechanics Vol. 17, nr 1/2015
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