Validity and reliability of an accelerometer-based assessgame to quantify upper limb selective voluntary motor control

Table 1 Participant group characteristics and assessment scores

Number of participants	NIA	NIC	Patients (validity)	Patients (reliability)
Number of participants	33	31	33	23
Age^M	32.5 [27.9; 38.3]	11.5 [8.5; 13.9]	12.2 [8.8; 14.9]	9.9 [8.7; 15.0]
Gender: female	18 (55%)	16 (52%)	11 (33%)	9 (39%)
Diagnosis
Cerebral palsy			22 (67%)	15 (65%)
Stroke			8 (24%)	6 (26%)
Traumatic brain injury			2 (6%)	2 (9%)
Encephalitis			1 (3%)	0 (0%)
MACS
1			7 (21%)	3 (13%)
2			12 (36%)	11 (48%)
3			13 (40%)	8 (35%)
4			1 (3%)	1 (4%)
Total SCUES^M
Dominant/less affected			13.0 [11.0; 14.0]	13.0 [11.5; 14.5]
Non-dominant/affected			9.0 [7.0; 13.0]	8.0 [6.5; 13.0]
Both sides			21.0 [18.0; 26.0]	21.0 [18.0; 26.0]
Avg. therapist opinion^M
Dominant/less affected			0.8 [0.6; 1.2]	0.8 [0.6; 1.1]
Non-dominant/affected			1.0 [0.8; 1.6]	1.0 [0.7; 1.7]
Both sides			1.0 [0.7; 1.3]	1.0 [0.6; 1.3]
Avg. AG target joint accuracy^M
Dominant/less affected	0.7 [0.7; 0.8]	1.1 [0.8; 1.5]	1.9 [1.7; 2.8]	2.0 [1.8; 2.8]
Non-dominant/affected	0.7 [0.7; 0.9]	1.0 [0.8; 1.4]	2.5 [1.9; 3.3]	2.6 [2.1; 3.1]
Both sides	0.7 [0.7; 0.9]	1.1 [0.8; 1.4]	2.4 [1.6; 2.8]	2.4 [2.0; 2.8]
Avg. AG involuntary movements^M
Dominant/less affected	0.7 [0.7; 0.9]	0.9 [0.7; 1.6]	3.0 [1.6; 5.4]	3.8 [2.0; 6.1]
Non-dominant/affected	0.8 [0.6; 0.9]	0.8 [0.7; 1.6]	4.0 [1.9; 7.8]	4.6 [3.1; 8.2]
Both sides	0.7 [0.7; 0.9]	0.9 [0.7; 1.7]	3.6 [1.9; 6.0]	4.2 [2.4; 6.5]

Abbreviations: NIA neurologically intact adults, NIC neurologically intact children, MACS Manual Ability Classification System, SCUES Selective Control of the Upper Extremity Scale, Avg. average, AG assessgame, ^M median [1st; 3rd quartile]

ISSN: 1743-0003