Table 2.

Absolute Change in Muscle Quality Variables for Normal and Low Grip Strength Groups

Variables	All Participants		Slowness Present?				Treatment Assignment
			No		Yes		Active		Control
	Not Weak (N = 252)	Weak (N = 124)	Not Weak (N = 246)	Weak (N = 106)	Not Weak (N = 6)	Weak (N = 17)	Not Weak (N = 133)	Weak (N = 65)	Not Weak (N = 113)	Weak (N = 41)
Grip strength	−0.97*	1.21*	−0.97*	1.01*	−1.00	2.53	−0.78*	0.68*	−1.19*	1.51*
Leg strength (GS)	−9.84	−31.30	−9.00	−21.38	−64.33	−112.70	−0.46	2.94	−17.90*	−55.71*
Leg power	−23.65*	−5.50*	−24.33*	−5.92*	20.33	−2.10	−30.36*	6.67*	−18.05	−23.68
Walking speed	−0.02	−0.03	−0.02	−0.04	0.05	0.03	−0.02	−0.02	−0.03	−0.07
SPPB	0.02*	0.84*	0.00*	0.68*	0.83	1.53	0.16	0.52	−0.18*	0.93*
ALMBMI	0.01	−0.01	0.01	−0.01	0.01	−0.00	−0.00	−0.02	0.03	0.00

Notes: ALM_BMI = appendicular lean mass standardized to body mass index; GS = grip strength; SPPB = short physical performance battery. Categories are distinguished by weakness at baseline (defined by GS < 16kg).

*Significance between those with normal and low GS within the grouping (ie, whole group).