TABLE 1.

Annual average increases in body weight, BMI, and waist circumference (± SE) by age and average running distance in 6119 men and 2221 women

	Reported Average Weekly Running Distance at Baseline and Follow-up
	All	0–23 km/wk	24–47 km/wk	≥ 48 km/wk
Males
Δbody weight (kg/yr)
18–24	1.37 ± 0.12§	1.56 ± 0.17§	0.86 ± 0.28†	0.83 ± 0.22‡
25–34	0.46 ± 0.04§	0.63 ± 0.07§	0.37 ± 0.06§¥	0.26 ± 0.06§#
35–44	0.44 ± 0.02§	0.52 ± 0.03§	0.42 ± 0.03§¥	0.31 ± 0.03§∞
45–54	0.32 ± 0.02§	0.41 ± 0.03§	0.26 ± 0.02§∞	0.23 ± 0.03§∞
55–64	0.17 ± 0.02§	0.14 ± 0.04§	0.21 ± 0.03§	0.13 ± 0.05†
65–74	0.08 ± 0.04*	0.10 ± 0.06	0.06 ± 0.06	0.08 ± 0.09
ΔBMI (kg/m2 per yr)
18–24	0.42 ± 0.04§	0.48 ± 0.05§	0.28 ± 0.09†	0.27 ± 0.07§
25–34	0.14 ± 0.01§	0.20 ± 0.02§	0.11 ± 0.02§¥	0.08 ± 0.02§#
35–44	0.14 ± 0.01§	0.16 ± 0.01§	0.13 ± 0.01§¥	0.10 ± 0.01§∞
45–54	0.10 ± 0.00§	0.13 ± 0.01§	0.08 ± 0.01§∞	0.07 ± 0.01§∞
55–64	0.06 ± 0.01§	0.06 ± 0.01§	0.07 ± 0.01§	0.04 ± 0.01†
65–74	0.03 ± 0.01*	0.03 ± 0.02	0.02 ± 0.02	0.03 ± 0.03
Δwaist circumference (cm/yr)
18–24	0.96 ± 0.16§	0.90 ± 0.23§	0.95 ± 0.33†	1.00 ± 0.32†
25–34	0.42 ± 0.05§	0.56 ± 0.08§	0.41 ± 0.07§	0.17 ± 0.08*#
35–44	0.35 ± 0.02§	0.41 ± 0.04§	0.31 ± 0.03§¶	0.29 ± 0.04§
45–54	0.26 ± 0.02§	0.35 ± 0.03§	0.22 ± 0.03§#	0.13 ± 0.04‡∞
55–64	0.27 ± 0.03§	0.29 ± 0.04§	0.28 ± 0.04§	0.15 ± 0.06†
65–74	0.18 ± 0.05§	0.24 ± 0.07‡	0.18 ± 0.07†	0.18 ± 0.12¥
Females
Δbody weight (kg/yr)
18–29	0.70 ± 0.12§	0.91 ± 0.20§	0.64 ± 0.17‡	0.39 ± 0.18*
30–39	0.37 ± 0.03§	0.50 ± 0.05§	0.29 ± 0.04§¥	0.21 ± 0.06‡#
40–49	0.31 ± 0.03§	0.42 ± 0.05§	0.23 ± 0.03§#	0.23 ± 0.06§¶
≥50	0.21 ± 0.03§	0.31 ± 0.06§	0.11 ± 0.04*¥	0.15 ± 0.07*
ΔBMI (kg/m2 per yr)
18–29	0.24 ± 0.04§	0.31 ± 0.07§	0.24 ± 0.07‡	0.13 ± 0.07*
30–39	0.13 ± 0.01§	0.17 ± 0.02§	0.11 ± 0.02§¥	0.08 ± 0.02§¥
40–49	0.12 ± 0.01§	0.16 ± 0.02§	0.08 ± 0.01§#	0.08 ± 0.02§¶
≥50	0.08 ± 0.01§	0.12 ± 0.02§	0.04 ± 0.02†¥	0.06 ± 0.03*
Δwaist circumference (cm/yr)
18–29	0.91 ± 0.21§	1.01 ± 0.33†	1.00 ± 0.38†	0.64 ± 0.36
30–39	0.33 ± 0.05§	0.47 ± 0.09§	0.16 ± 0.08*¥	0.32 ± 0.11†
40–49	0.40 ± 0.05§	0.48 ± 0.08§	0.36 ± 0.06§	0.28 ± 0.11†
≥50	0.32 ± 0.06§	0.42 ± 0.09§	0.21 ± 0.08†	0.31 ± 0.14*
Δhip circumference (cm/yr)
18–29	1.10 ± 0.22§	1.54 ± 0.33§	0.32 ± 0.41	1.10 ± 0.38†
30–39	0.33 ± 0.05§	0.40 ± 0.09§	0.32 ± 0.09‡	0.21 ± 0.10*
40–49	0.18 ± 0.05§	0.27 ± 0.07‡	0.17 ± 0.07*	−0.04 ± 0.10¶
≥50	0.25 ± 0.06§	0.38 ± 0.09§	0.14 ± 0.09¶	0.13 ± 0.13

Significant weight increase:

^*P < 0.05

^†P < 0.01

^‡P < 0.001

^§P < 0.0001.

Weight increase significantly different from the increase at 0–23 km/wk:

^¶P < 0.05

^¥P < 0.01

^#P < 0.001

^∞P < 0.0001.