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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