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

Table 3 Bland and Altman limits of agreement between sessions 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	Mean (±SD) difference between sessions (biais)	Lower LOA to Upper LOA
All (N = 32)	MVIS (N.kg ⁻¹ )	0.007 ± 0.13	−0.38 to 0.40
All (N = 32)	RFG (N.kg ^− 1 .s ^− 1 )	0.23 ± 1.75	−3.01 to 3.48
Fallers (N = 16)	MVIS (N.kg ^− 1 )	0.008 ± 0.16	− 0.28 to 0.29
Fallers (N = 16)	RFG (N.kg ^− 1 .s ^− 1 )	0.67 ± 1.48	−2.42 to 3.76
Non-fallers (N = 16)	MVIS (N.kg ^− 1 )	0.006 ± 0.12	−0.48 to 0.44
Non-fallers (N = 16)	RFG (N.kg ^− 1 .s ^− 1 )	−0.21 ± 1.93	− 3.04 to 2.63

SD standard deviation, LOA limits of agreement, MVIS maximal voluntary isometric strength, RFG rate of force generation