Utilisateur:A2/doigts

http://www.youtube.com/watch?v=TelOIs1iVqU

http://www.youtube.com/watch?v=aWV6aQLXRcQ&feature=related gregirwin88 (il y a 8 mois) « Some people can not completely isolate their little finger or ring finger due to genetic limitations. You can improve your individual ability by exercising for short periods of time but don't over stress or strain. »

http://www.youtube.com/watch?v=7lASLKS5Kas&feature=related palmspinning (contact) à l'envers, miniboules d'1kg (stress)