Analysis on Muscle Forces of Extrinsic Finger Flexors and Extensors in Flexor Movements with sEMG and Ultrasound

Table 1

MTJ displacements of each muscle during finger flexion movements (mm).

Flexion movements	FDS	FDP	ED
Action 1	18.22	22.22	−12.54
Action 2	4.33	6.60	0
Action 3	10.48	12.10	0
Action 4	15.88	16.30	0
Action 5	20.56	21.70	0