1. Department of Physical Medicine; Medical University of Lodz; Lodz Poland
2. Neurorehabilitation Ward; III General Hospital in Lodz; Lodz Poland
3. Ophthalmology Department; Warminski Hospital; Bydgoszcz Poland
4. Laboratoire “Mobilité Vieillissement Exercice”; Faculty of Sport Sciences; University of Poitiers; Poitiers France