Reliability of Lower Extremity Muscle Power and Functional Performance in Healthy, Older Women

Table 4

Intrarater reliability of functional performance testing between video-recorded scores and live data collection for two raters for time point 1; rater 1 (R1): n = 9 participants; rater 2 (R2): n = 6 participants.

Test	Rater	ICC	95% CI	value
4 MUP	R1	0.85	−0.13–0.97	<0.001
	R2	0.85	−0.01–0.98	0.01
4 MFP	R1	0.92	0.65–0.98	<0.01
	R2	0.89	0.24–0.99	0.02
5 CS	R1	0.99	0.80–1.00	<0.001
	R2	1.00	0.97–1.00	<0.001
30 sCS	R1	0.99	0.95–1.00	<0.001
	R2	1.00	0.98–1.00	<0.001
SCUP	R1	0.94	0.68–0.99	<0.001
	R2	0.95	0.69–0.99	<0.01
SCFP	R1	0.98	0.93–1.00	<0.001
	R2	0.98	0.50–1.00	<0.001
400 MW; (n = 4)	R2	1.00	1.00–1.00	<0.001

^aICC: intraclass correlation coefficient; CI: 95% confidence intervals; 4 MUP: 4-meter usual pace walk; 4 MFP: 4-meter fast pace walk; 5 CS: 5 chair stands; 30 sCS: 30-second chair stands; SCUP: stair climb usual pace; SCFP: stair climb fast pace; 400 MW: 400-meter walk. All ICCs were significant; .