Table 3.

Overview of the recorded and analyzed muscles.

References	Muscles	Recorded sides	Analyzed sides	N analyzed muscles in NMF
Cappellini et al. (2016)	TA, SOL, GL, GM, RF, VM, VL, ST, BF, TFL, GLMax	Bi	Both legs separately	11 for each leg
Cappellini et al. (2018)	TA, SOL, GL, GM, RF, VM, VL, ST, BF, TFL, GLMax	Bi	Both legs separately	11 for each leg
Hashiguchi et al. (2018)	TA, SOL, GL, RF, VM, ST, BF, GLMed	Uni	Most affected leg	8
Tang et al. (2015)	TA, SOL, GL, VL, RF, ST, BF, TFL	Bi	Both legs separately	8 for each leg
Yu et al. (2019)	TA, SOL, GL, VL, RF, ST, BF TFL	Bi	Both legs separately	8 for each leg
Torricelli et al. (2014)	TA, GM, VM, VL, RF, AL, ST, BF	Bi	Both legs separately	8 for each leg
Shuman et al. (2017)	TA, GM, RF, ST, BF	Bi	Random leg	5
Steele et al. (2019)	TA, GM, VL, RF, ST	Bi	Both legs separately	5 for each leg
Shuman et al. (2019)	TA, SOL, GM, RF, VL, ST, BF, GLMed	Bi	Most affected or random leg	8
Oudenhoven et al. (2019)	TA, GM, RF, VL, ST	Bi	Most affected leg	5
Kim Y. et al. (2018)	TA, GM, RF, ST	Bi	Both legs combined	8
Steele et al. (2015)	TA, GM, RF, ST, BF	Bi	Uni CP: most affected leg Other individuals: random leg	5
Shuman et al. (2016)	TA, SOL, GL, RF, VL, ST, BF, GLMed	Bi	Uni CP: most affected leg TD & Bi CP: both legs	8 or 16
Goudriaan et al. (2018)	TA, GM, RF, ST, GLMed	Bi	Most affected or involved leg	5
Schwartz et al. (2016)	TA, GM, RF, ST	Bi	NG	8
Shuman et al. (2018)	Centre 1: TA, GM, RF, ST Centre 2: TA, SOL, GM, RF, VL, ST, BF, GLMed	Bi	Most affected or random leg	Centre 1: 4 Centre 2: 8

N, number; TA, tibialis anterior; SOL, soleus; GM, gastrocnemius medialis; GL, gastrocnemius lateralis; RF, rectus femoris; VM, vastus medialis; VL, vastus lateralis; ST, semitendinosus; BF, biceps femoris; TFL, tensor fasciae latae; AL, adductor longus; GLMax, gluteus maximus; GLMed, gluteus medius; Uni, unilateral; Bi, bilateral; NMF, non-negative matrix factorization; NG, not given.