Table 3.

Results of physical performance measures for younger adults (age 18–49, mean age 30; N = 20) and older adults (age ≥ 50, mean age 57; N = 20)

		Actual scores Mean ± SD	Performance for healthy norms by age and gender	Equivalent functional age (years)
Gait speed [26] (m/s)	Age 18–49	Male: 1.12 ± 0.23	Males: 1.46 ± 0.9	Males: 80–89
		Female: 1.09 ± 0.23	Female: 1.42 ± 1.3	Females: 80–89
	Age ≥ 50	Male: 1.09 ± 0.14	Males: 1.36 ± 2.1	Males: 80–89
		Female: 1.19 ± 0.15	Female: 1.30 ± 2.1	Females: 80–89
Timed Up Go [22, 27] (s)	Age 18–49	Male: 8.9 ± 1.6	Males: 8.6 ± 1.2	Males: 70–79
		Female: 9.5 ± 2.8	Females: 8.6 ± 1.2	Females: 70–79
	Age ≥ 50	Male: 10.7 ± 2.0	Males: 8.0 ± 2	Males: 80–89
		Female: 9.5 ± 1.1	Females: 8.0 ± 2	Females: 80–89
30-second chair stand [28] (#)	Age 18–49	Male: 15 ± 5	Males: N/A	Males: 65–69
		Female: 13 ± 5	Females: N/A	Females: 65–69
	Age ≥ 50	Male: 10 ± 4	Males: 16 ± 4.3	Males: 85–89
		Female: 12 ± 3	Females: 15 ± 4.0	Females: 75–79
6-min walk [22, 29] (m)	Age 18–49	Male: 585 ± 104	Male: 638 ± 44	Males: 60–69
		Female: 498 ± 118	Female: 593 ± 57	Female: 60–69
	Age ≥ 50	Male: 465 ± 73	Male: 572 ± 92	Males: 80–84
		Female: 499 ± 64	Female: 538 ± 92	Female: 70–74