Table 3.

EMG methodological quality evaluation

Article reference
Domain	De Mey et al53	Hardwick et al54	Kaur et al55	Kibler et al56	Maenhout et al57	Maenhout et al58	Nagai et al59	Nakamura et al52	Smith et al60	Tsuruike and Ellenbecker61	Uhl et al62	Yamauchi et al63
EMG detection of signal	4.00	3.50	4.00	3.75	4.75	4.75	4.80	4.75	3.75	3.75	3.75	4.50
Processing signals	1.0	1.0	1.0	1.0	1.0	1.0	0.0	1.0	0.0	1.0	0.0	1.0
Evaluation of EMG levels/patterns	2.0	2.0	2.0	2.0	2.0	2.0	2.0	2.0	2.0	2.0	2.0	2.0
Evaluation of EMG timing	N/A	N/A	N/A	1.0	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A
Procedures	2.0	0.0	2.0	1.0	2.0	2.0	2.0	2.0	1.0	1.0	1.0	2.0
Analysis	1.0	1.0	1.0	1.0	1.0	1.0	1.0	1.0	1.0	1.0	1.0	1.0
Total scores	10.00	7.50	10.00	9.75	10.75	10.75	9.8	10.75	7.75	8.75	7.75	10.50
% Quality scores	83%	62%	83%	75%	90%	90%	82%	90%	64%	73%	64%	88%

Shades of grey for visual between-study comparison only: , ≤70%; , ≥70%–79%; , ≥80%.

EMG, electromyography; N/A, not assessed.