Table 1.

Participant characteristics. Values are mean ± SD.

Age	Younger class (65–74)		Older class (75–84)
Sex	Women	Men	Women	Men
Number of subjects	117	119	161	200
Age (years)	70.0 ± 2.5	69.8 ± 2.5	79.5 ± 2.6	79.4 ± 2.5
Height (cm)	160.3 ± 6.0	171.0 ± 6.4	160.0 ± 5.9	169.7 ± 6.3
Body mass (kg)	65.7 ± 10.6	78.6 ± 10.9	64.0 ± 10.9	75.0 ± 10.8
Body mass index (kg/m2)	25.6 ± 4.3	26.9 ± 3.5	25.1 ± 4.5	26.0 ± 3.4
Instruction level
High	35	57	31	61
Medium	51	38	59	77
Low	31	24	71	62