Table 2.

Total aerobic minutes per month.

Month	<65 years old (min), median (n=222)	>65 years old (min), median (n=80)	P value
1	167	215	.002
2	166	230	.001
3	158	212	.002
4	150	213	.002
5	165	213	.004
6	142	168	.004