Biomechanika – rotácia tela (essential tennis)
https://www.youtube.com/watch?v=fs6z8Kdn_yc
https://www.youtube.com/watch?v=fs6z8Kdn_yc
https://www.youtube.com/watch?v=MIo12LOZiY0
https://www.youtube.com/watch?v=A9IkZodVQzg
https://www.youtube.com/watch?v=_SykasLQfi8