Ultrasound assessment of lower limb muscle mass in response to resistance training in COPD

Respiratory Research

Table 3 Reproducibility of ultrasound measurements

	Mean difference*		SD^#		p-value		ICC
	RF_csa(mm²)	Q_t(mm)	RF_csa(mm²)	Q_t(mm)	RF_csa	Q_t	RF_csa	Q_t
Inter-occasion (n=64)	1.18	0.04	21.69	1.09	0.66	0.75	0.98	0.98
Inter-operator (A vs. B; n=15)	8.73	0.20	25.39	0.88	0.20	0.38	0.95	0.95
Inter-operator (A vs. C; n=20)	5.90	0.07	15.01	0.93	0.09	0.74	0.99	0.98

*: Difference between measurements taken on 2 separate occasions at baseline (Test-Retest).
^#: of mean difference.
Significance was tested using paired t tests.
ICC: Intraclass correlation coefficient.

ISSN: 1465-993X