Table 2.

Annualized rates of change^* in physical functioning measures from 2000/1 to 2005/6

Functioning measure	Annualized rate of change
	absolute change	as % of baseline
Grip strength, dominant hand (kg)	−0.20 kg/yr	0.8 % less/yr
Forward reach (cm)	−0.16 cm/yr	0.4 % less/yr
2-lb lift (sec)	+0.04 sec/yr	2.9 % longer/yr
Sit-to-stand (sec)	0.003 sec/yr	0.3 % longer/yr
Timed stair climb (sec)	+0.29 sec/yr	1.9 % longer/yr
Leg strength (Nm)	−2.2 Nm/yr	2.6 % less/yr
40-foot timed walk (sec)	+0.11 sec/yr	1.4 % longer/yr
Velocity (cm/sec)	−0.69 cm/sec/yr	0.4 % slower/yr
Physical functioning perception (SF-36 physical functioning score)	−0.43 points/yr	0.5% less/yr

^*Changes with time are significantly different than zero (p<0.05) except sit-to-stand, velocity, and the SF-36 physical functioning score.