Intra-rater reliability of hip abductor isometric strength testing in a standing position in older fallers and non-fallers

Table 2 ICC_agreement (A-1), SEM and SDD (%) values for MVIS and RFG parameters of all patients and the 2 subgroups (fallers and non-fallers) recruited for the hip abduction test in standing position

	Variables	ICC_agreement [95%CI]	ICC_agreement interpretation	SEM (unit of measure)	SDD (%)
All (N = 32)	MVIS	0.98 [0.95–0.99]	Good	0.09	25.2%
All (N = 32)	RFG	0.93 [0.87–0.97]	Good	1.24	44.3%
Fallers (N = 16)	MVIS	0.94 [0.89–0.98]	Good	0.11	32.7%
Fallers (N = 16)	RFG	0.93 [0.84–0.98]	Good	1.12	48.8%
Non-fallers (N = 16)	MVIS	0.98 [0.95–1.00]	Good	0.08	20.3%
Non-fallers (N = 16)	RFG	0.88 [0.75–0.96]	Good	1.34	41.2%

ICC_agreement intra-class correlation coefficient, SEM standard of error measurement, SDD smallest detectable difference, MVIS maximal voluntary isometric strength, RFG rate of force generation

ISSN: 1861-6909