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. Author manuscript; available in PMC: 2019 May 1.
Published in final edited form as: Muscle Nerve. 2017 Dec 11;57(5):784–791. doi: 10.1002/mus.26026

Table 5.

Intra-observer and inter-observer intraclass correlation coefficients of twitch force recorded with the knee-holder device

Comparison Single stimulations
ICC (95% CI)		 Paired stimulations
ICC (95% CI)
Intra-observer Same day 0.998
(0.998, 0.999)		 0.998
(0.998, 0.999)
One week apart 0.982
(0.971, 0.989)		 0.981
(0.968, 0.989)
One month apart 0.960
(0.925, 0.978)		 0.964 (0.933, 0.981)
Inter-observer Same day 0.993
(0.988, 0.996)		 0.992
(0.986, 0.995)

Definition of abbreviations: ICC = Intraclass correlation coefficient; 95% CI = 95% confidence interval