Table 2.

Durations, MUs, and 3D distances for the cases presented by occasion.

	Unimanual								Bimanual
	Pre		Post1			Post2			Pre		Post1			Post2
	M	SD	D	M	SD	D	M	SD	M	SD	D	M	SD	D	M	SD
CASE I
Duration (s)	1.4	0.3	+	1.5	0.3	+	1.6	0.7	2.3	0.4	−	2.3	0.4	+	2.4	0.6
MUs (n): shoulder	7.7	2.9	+	10.7	6.2	−	7.2	3.8	14.8	4.3	+	17.7	6.4	−	12.1	3.7
MUs (n): elbow	5.4	1.8	+	7.4	3.4	−	5.3	2.3	11.2	3.2	+	12.1	3.3	−	9.9	3.1
MUs (n): wrist	6.1	2.0	+	6.4	3.3	−	5.4	2.3	11.1	3.6	+	13.0	3.9	−	10.5	2.6
MUs (n): head	5.2	2.5	+	7.3	5.3	+	10.5	4.3**	8.8	1.9	+	9.8	2.3	+	12.0	4.9**
3D distance: shoulder	73	25	+	103	63	+	77	22**	108	38	+	170	45**	+	118	34
3D distance: elbow	152	57	+	200	134	+	182	48**	184	43	+	238	39**	+	235	42**
3D distance: wrist	205	47	+	248	87	+	232	89	268	52	+	276	70	+	307	54
3D distance: head	58	23	+	104	70**	+	105	71**	164	67	+	198	43	+	195	46
CASE II
Duration (s)	5.3	1.4	−	4.4	0.4	−	3.4	1.3*
MUs (n): shoulder	30.0	10.5	−	28.1	6.0	−	17.8	9.8**
MUs (n): elbow	32.7	12.7	−	31.7	12.4	−	18.0	11.7*
MUs (n): wrist	25.0	7.6	−	22.5	7.1	−	14.3	9.3**
MUs (n): head	19.7	7.5	+	22.4	5.6	+	22.8	17.5
3D distance: shoulder	96	16	+	118	52	−	92	49
3D distance: elbow	234	49	+	328	177	−	187	107
3D distance: wrist	328	57	+	392	140	−	290	181
3D distance: head	373	96	−	245	178	−	154	90*
CASE III
Duration (s)	5.5	0.8	−	3.2	0.4	−	3.1	0.6*
MUs (n): shoulder	58.8	31.7	−	23.1	8.4**	−	22.7	6.2**
MUs (n): elbow	47.9	27.8	−	24.8	9.3*	−	19.7	4.7*
MUs (n): wrist	31.5	14.4	−	13.0	5.5**	−	12.4	2.8**
MUs (n): head	49.1	19.8	−	18.5	7.9**	−	23.0	4.7**
3D distance: shoulder	76	29	−	73	23	−	42	17
3D distance: elbow	103	21	+	114	83	−	76	22
3D distance: wrist	152	41	+	184	29	+	161	61
3D distance: head	108	29	−	103	42	−	90	50

M, mean; SD, standard deviation; D, direction of change relative to the pre-test (+, increase; −, reduction); s, seconds; MU, mean number of movement units.

Significant differences relative to the pre-test occasion are indicated in bold.

*p < 0.025, **p < 0.01.