Table 2.

Reliability for the pre-test values

Parameter	ICC (95%-CI)	CV (95%-CI) in%
MVC180	0.984 (0.978–0.989)	1.72 (1.44–2.01)
MVC90	0.983 (0.976–0.988)	1.97 (1.66–2.33)
KtW	0.991 (0.984–0.995)	0.94 (0.35–1.59)
ORT	0.992 (0.981–0.995)	0.64 (0.22–1.19)
SONOL	0.876 (0.83–0.91)	5.21 (4.4–6.15)
SONOM	0.917 (0.885–0.94)	3.5 (2.96–4.07)
PaL	0.878 (0.833–0.912)	6.64 (5.64–7.74)
PaM	0.81 (0.743–0.861)	6.49 (5.2–7.98)

MVC maximal voluntary contraction, KtW knee-to-wall test, ORT range of motion measurement with orthosis, SONO measurement of muscle thickness via sonography, Pa Pennation angle, 180 MVC measured with extended knee joint, 90 MVC measured with flexed knee joint, L lateral head of the gastrocnemius, M medial head of the gastrocnemius