Table 3 Hand model, control strategy and training
Subject | Hand model | Control strategy | Training | ||
|---|---|---|---|---|---|
Grips taught | Grips easy for the subject | grips Difficult for the subject | |||
Subject 1 | I Limb Quantum | Hold open/gesture control | Spherical/power, key grip, pinch (fingers closed), tripod | Key | Power (had to hold open and not move after the finger twitched), pinch (couldn’t remember direction in gesture control to get to it), tripod (couldn’t remember direction in gesture control) |
Subject 2 | I Limb Quantum | Pattern recognition for open/close Hold open—gesture control to switch grips | Power, key, tripod, pointer | Power Tripod Pinch | Key grip -time consuming to hold open then had to manually line up thumb with finger to get to desired position More comfortable moving thumb to proper position rather than using gesture control but could get to all positions without problem |
Subject 3 | TASKA Hand Gen 2 | Pattern Recognition to control wrist and hand (direct control of pinch, key, and power grip) | Pinch, key, and Power | Key | Pinch was often confused with Power in pattern recognition |