Table 1.

Subject characteristics

				Men
	Women			YE, n = 10	LLE			OH, n = 10
	YE, n = 10	LLE, n = 7	OH, n = 10		All, n = 21	Performance, n = 14	Fitness, n = 7
Age, yr	25 ± 1	72 ± 2	75 ± 1	25 ± 1	74 ± 1	74 ± 1	75 ± 2	75 ± 1
Height, cm	167 ± 2	164 ± 2	157 ± 2	181 ± 2	180 ± 2	179 ± 2	182 ± 3	177 ± 2
Weight, kg	60 ± 2	61 ± 4	65 ± 1	75 ± 3	79 ± 2	77 ± 2	83 ± 5	88 ± 3
BMI, kg/m2	21 ± 1	23 ± 1	27 ± 1	23 ± 1	24 ± 1	24 ± 1	25 ± 1	28 ± 1
Body fat, %	23 ± 1*	30 ± 2†	41 ± 2	18 ± 2*	24 ± 1†	22 ± 1‡	27 ± 1	32 ± 1
Steps per day	11,518 ± 1,404*	7,463 ± 683	6,801 ± 823	9,404 ± 635	9,560 ± 619	9,369 ± 725	10,006 ± 1,265	5,813 ± 488*

Values are means ± SE. BMI, body mass index; LLE, lifelong exercisers; OH, old healthy; YE, young exercisers.

^*P < 0.05 vs. other groups;

^†P < 0.05 vs. OH;

^‡P < 0.05 vs. LLE Fitness.