Jan Gajewski

University of Szczecin

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Medical University of Warsaw

Institute of Psychology, Polish Academy of Sciences

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University of Szczecin

Józef Piłsudski University of Physical Education in Warsaw

Józef Piłsudski University of Physical Education in Warsaw

Central Institute for Labour Protection - National Research Institute

Kazimierz Wielki University in Bydgoszcz

Józef Piłsudski University of Physical Education in Warsaw

Józef Piłsudski University of Physical Education in Warsaw

Józef Piłsudski University of Physical Education in Warsaw

University of Palermo

German Sport University Cologne

Józef Piłsudski University of Physical Education in Warsaw

Bond University

Poznan University of Physical Education