Table 2.

Relationships between baseline isokinetic knee muscle strength and change in knee adduction moment

2-year change in knee adduction moment parameters*	Normal-pace gait		Fast-pace gait
	Regression coefficient (95% CI)	p value	Regression coefficient (95% CI)	p value
Peak knee adduction moment (Nm/[BW × HT]%)
Concentric quadriceps (Nm/kg)	0.16 (−0.19 to 0.50)	0.37	−0.01 (−0.47 to 0.44)	0.96
Eccentric quadriceps (Nm/kg)	−0.04 (−0.28 to 0.20)	0.73	−0.17 (−0.49 to 0.15)	0.30
Concentric hamstrings (Nm/kg)	0.32 (−0.33 to 0.97)	0.33	0.14 (−0.75 to 1.02)	0.76
Eccentric hamstrings (Nm/kg)	−0.17 (−0.60 to 0.27)	0.45	−0.40 (−0.98 to 0.18)	0.18
Knee adduction moment impulse (Nm.second/[BW × HT]%)
Concentric quadriceps (Nm/kg)	0.04 (−0.06 to 0.15)	0.43	−0.03 (−0.12 to 0.06)	0.47
Eccentric quadriceps (Nm/kg)	0.00 (−0.08 to 0.07)	0.93	−0.05 (−0.11 to 0.01)	0.12
Concentric hamstrings (Nm/kg)	0.05 (−0.15 to 0.25)	0.62	−0.01 (−0.19 to 0.17)	0.93
Eccentric hamstrings (Nm/kg)	−0.03 (−0.16 to 0.10)	0.63	−0.08 (−0.19 to 0.03)	0.18

* Adjusting for baseline scores and change in walking speed during 2 years; BW = body weight; HT = height.