TABLE 2.

Intraclass correlation coefficients for individual muscles.

Muscle	R1/R2 Day 1	TKE/R1	TKE/R2	SD/R1	SD/R2
Trapezius	0.92	0.89	0.89	0.30	0.57
Erector spinae	0.77	0.83	0.86	0.33	0.36
Rectus abdominus	0.69	0.51	0.53	0.17	0.20
External abdominal oblique	0.91	0.45	0.50	0.15	0.11
Gluteus maximus	0.83	0.51	0.72	0.56	0.76
Gluteus medius	0.84	0.76	0.82	0.41	0.60
Rectus femoris	0.89	0.76	0.89	0.11	0.12
Semitendinosus	0.57	0.70	0.65	0.11	0.40

R1, Rater 1; R2, Rater 2; TKE, Teager-Kaiser energy operator; SD, standard deviation threshold method.