Free and Forced Vibration Modes of the Human Fingertip 10 second finger tap, 10 Seconds Finger tap test. Simple. Powerful. Underrated., We use it daily to assess patients., Ask someone to tap their index finger and thumb as fast as possible for 10 ToolBox Talk #42: HAND ARM VIBRATION SYNDROME (HAVS) As the majority of our operations involves working with our hands in some capacity whether it is hitting a hammer, using power tools, Tingling Fingers at Night? It Might Be More Than Carpal Tunnel