Table 2.

Weight training, aerobic exercise and risk of type 2 diabetes in men from Health Professional Follow-up Study (1990–2008).

		Minutes per week of activity
	None	1 – 59	60 – 149	≥150	p trend
Weight training
Median time (minutes/week)	0	17	85	193
Number of cases	1,630	507	109	32
Person years	322,984	130,190	39,936	15,221
Age adjusted	1	0.72 (0.65–0.80)	0.53 (0.44–0.65)	0.46 (0.32–0.65)	<.001
Multivariable adjusted model 1*	1	0.78 (0.71–0.87)	0.61 (0.50–0.75)	0.53 (0.37–0.76)	<.001
Multivariable adjusted model 2**	1	0.88 (0.79–0.98)	0.75 (0.61–0.92)	0.66 (0.46–0.93)	<.001
Multivariable adjusted model 3***	1	0.92 (0.82–1.02)	0.82 (0.67–1.00)	0.71 (0.49–1.00)	0.009
Aerobic exercise†
Median time (minutes/week)	0	27	97	360
Number of cases	395	589	445	849
Person years	56,897	85,616	94,942	270,877
Age adjusted	1	0.93 (0.79–1.03)	0.63 (0.54–0.72)	0.39 (0.35–0.45)	<.001
Multivariable adjusted model 1*	1	0.92 (0.81–1.05)	0.67 (0.58–0.78)	0.46 (0.40–0.52)	<.001
Multivariable adjusted model 2**	1	0.93 (0.81–1.06)	0.69 (0.60–0.80)	0.48 (0.42–0.55)	<.001
Multivariable adjusted model 3***	1	1.00 (0.88–1.15)	0.80 (0.69–0.92)	0.61 (0.53–0.70)	<.001

Data are relative risks (95% CI).

^*adjusted for age (months), smoking (never, past, or current with cigarette use of 1–14, 15–24, ≥25 per day), alcohol consumption (0, 1–5, 6–10, 11–15, >15 g/d), coffee intake (0, <1, 1–3, 3–5, >5 cups/day), race (white, non-white), family history of diabetes, intake of total energy, trans fat, polyunsaturated fat to saturated fat ratio, cereal fiber, wholegrain, and glycemic load (all dietary factors in quintiles).

^**additionally adjusted for aerobic exercise (or weight training if aerobic exercise was exposure), other physical activity of at least moderate intensity (quintiles), and TV viewing (quintiles).

^***additionally adjusted for body mass index.

^†Aerobic exercise consists of walking with brisk pace, jogging, running, bicycling, swimming, tennis, squash, and calisthenics/rowing.