Table 2.

Strength by Sex-Specific Incident Mobility Disability

	Men: Incident Mobility Disability					Women: Incident Mobility Disability
	No		Yes			No		Yes
	M (SD)	N	P Value	M (SD)	N	M (SD)	N	M (SD)	N	P Value
Knee strength, kg
Year 3	20.0 (3.8)	209	16.7 (4.2)	23	<.001	14.1 (3.0)	188	12.7 (3.1)	61	.002
Change (Year 3 − baseline)	−1.9 (5.4)	205	−1.8 (4.1)	23	.95	−0.6 (4.0)	181	−1.0 (3.4)	55	.50
Leg power, W
Year 3	182.6 (51.4)	192	125.3 (52.5)	19	<.001	92.9 (35.8)	157	75.2 (32.6)	44	.004
Change (Year 3 − baseline)	4.5 (37.2)	186	−6.3 (41.0)	19	.24	6.4 (31.4)	151	2.3 (22.1)	41	.34
Grip strength, kg
Year 3	43.1 (8.0)	211	35.1 (9.9)	27	<.001	26.0 (4.9)	191	23.8 (7.0)	66	.02
Change (Year 3 − baseline)	0.6 (7.4)	172	−1.8 (8.1)	26	.13	0.9 (6.2)	163	1.6 (8.3)	56	.60