Table 3.

The association between knee extensor torque or muscle quality and functional performance for healthy 50–70 y women (n = 128) and per tertile.

	n = 128	T1 (n = 42)	T2 (n = 43)	T3 (n = 43)
Knee extensor torque (N m/kg)
Gait speed (m/s)	0.60 (<0.01)	0.54 (<0.01)*	0.13 (0.40)	0.46 (<0.01)*
5 Chair repetitions (s)	−0.35 (<0.01)	−0.37 (0.02)*	−0.08 (0.60)	−0.24 (0.12)
30 s Chair repetitions (n)	0.47 (<0.01)a	0.41 (0.05)*	0.20 (0.35)	0.47 (0.04)*
Muscle quality (N m/kg)
Gait speed (m/s)	0.40 (<0.01)	0.27 (0.08)	0.12 (0.45)	0.24 (0.11)
5 Chair repetitions (s)	−0.33 (<0.01)	−0.39 (0.01)*	−0.11 (0.48)	−0.21 (0.19)
30 s Chair repetitions (n)	0.38 (0.01)a	0.31 (0.13)	0.04 (0.84)	0.40 (0.08)

Values are displayed as Pearsons or Spearmans r (p-value).

^*Statistical significance.

^an = 68.