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Table 2 FFM ergonomic and task feasibility in hemiparetic patients

From: A novel method for the quantification of key components of manual dexterity after stroke

Patients Ergonomic difficulties with the FFM device Task feasibility Problem encountered
Arm posture Finger position Interaction with computer Finger force tracking Sequential finger tapping Single finger tapping Multi-finger tapping
1 no Maintaining little finger on piston (short little finger) Difficulties to interact with the computer feedback yes no yes no Too fast and difficult (sequence)
Failed to use computer feedback (sequence and tapping)
2 no no no yes yes yes yes /
3 Maintaining wrist extension (flexor spasticity) Fingers slide on pistons (flexor spasticity) no yes no yes yes Too fast and difficult (sequence)
4 no Maintaining little finger on piston (short little finger) no yes no yes yes Too fast and difficult (sequence)
5 no no Difficulties to interact with the computer feedback yes no yes yes Too fast and difficult (sequence)
Failed to use computer feedback (sequence)
6 Maintaining wrist extension (weak extensor) Maintaining fingers on pistons (adductor spasticity) no yes no yes yes Too fast and difficult (sequence)
7 no Maintaining little finger on piston (contracture of little finger) no yes no yes yes Too fast and difficult (sequence)
8 no Maintaining fingers on pistons (repositioning) no yes yes yes yes /
9 no no no yes yes yes yes /
10 no no no yes yes yes yes /
Feasibility 8/10 4/10 8/10 10/10 4/10 10/10 9/10 /
  1. Indicated are for each patient: qualitative observations in terms of ergonomic feasibility and task feasibility