Table 1.
Participant characteristics.
Fig 1.
Objects used to assess grasping.
Half-filled water bottle (height 22 cm, upper diameter 3 cm and lower diameter 6cm, weight 260 grams); Teaspoon (length 14 cm, thickness 1 mm, weight 90 grams), Packet of paper tissues (height 7.5 cm, length 5 cm, thickness 2.5 cm, weight 20 grams) and Tennis ball (diameter 6 cm, weight 58 grams).
Fig 2.
The circles indicate the position of the cameras. One camera was positioned directly above the object (80 cm high) (C1), and the other 2 were placed at a height of 75 cm on the contralateral side of the hand being evaluated: one 30° to the sagittal plane (at a distance of 75 cm from the object in the horizontal plane) (C2) and the other 30° behind the frontal plane (at a distance of 70 cm from the object in the horizontal plane) (C3).
Table 2.
Functional Grasp Scale (FGS).
Fig 3.
The bars represent the number of patients in each score-group for the FMA-UE (Fugl-Meyer Assessment-Upper Extremity) and ARAT (Action Research Arm Test scores). The grouping of scores was based on the study by, Hoonhorst et al [42].
Fig 4.
a: Multi-pulpar, b: Pluri-digital c: Lateral Pinch, d: Palmar, e: Digito-palmar, f: Raking, g: Ulnar, h: Inter-digital.
Table 3.
Distribution of the grasp-types across the 456 trials for each object.
Fig 5.
Mean FGS, FMA-UE and ARAT score in individual patients.
The patients are ranked according to their grasp type and their FGS score (see S3 Table). Horizontal bars represent the objects the patients were able to grasp (Black: spoon, dark grey: bottle, light grey: ball, white: tissues).
Fig 6.
FMA-UE and mean FGS scores as a function of ARAT score.
Fig 7.
ARAT and FMA-UE scores of individual patients for each grasp-type.
In bold the median ARAT and FMA-UE scores. For clarity, ARAT and FMA-UE scores have been normalised out of 100.