Table 3 Change in outcome variables in the three tertiles of visit 1 BW

	Tertile I (43.3–61.4 kg)			Tertile II (61.7–73.5 kg)			Tertile III (75.0–121.2 kg)			Total (43.3–121.2 kg)
	Female	Male	Total	Female	Male	Total	Female	Male	Total	Male	Female
n	46	3	49	32	17	49	22	28	50	48	100
% Exercisers	59%	4%	63%*	39%	20%	59%*	8%	26%	34%	52%*	52%*
Mean Change±s.d.
Change BW	−0.15±0.75	−1.11±0.84	−0.21±0.78	−0.08±1.25	−0.06±0.56	−0.07±1.06	0.12±1.24	0.40±0.95	0.28±1.08	0.14±0.90	−0.07±1.04
Change BF%	−0.35±0.89	−0.51±0.25	−0.36±0.87*	0.11±0.95	−0.23±0.42	0.01±0.82^a	0.08±0.68	0.58±1.40	0.36±1.16^a	0.23±1.17	−0.11±0.89
Change BMI	−0.09±0.80	−1.09±0.84	−0.16±0.83	−0.08±1.31	−0.07±0.55	−0.07±1.10	0.14±1.26	0.29±0.88	0.23±1.03	0.08±0.80	−0.04±1.09
Change SBP	0.01±1.09	−0.35±1.06	−0 02±1.08	−0.26±0.92	−0.19±0.90	−0.24±0.90	0.28±100	0.23±0.95	0.26±0.96	0.05±0.94	−0.02±1.03
Change DBP	−0.09±1.18	0.11±0.91	−0.07±1.16	−0.07±0.91	0.02±0.95	−0.04±0.91	0.24±0.81	0.01±1.00	0.11±0.92	0.02±0.96	−0.01±1.02
Change HR	0.16±0.90	−0.38±2.16	0.13±0.99	0.04±0.94	0.08±1.46	0.05±1.13	−0.24±0.39	−0.12±1.11	−0.18±0.86	−0.07±1.28	0.03±0.84

Abbreviations: BF%, body fat percentage; BMI, body mass index; BW, body weight; DBP, diastolic blood pressure; HR, heart rate; SBP, systolic blood pressure.
BW tertile was a significant main effect for change in BF% (P=0.023), but neither exercise nor gender were significant. No other variables showed significant main effects or interaction effects.
Bold values indicated by ‘*’ denote significantly different proportion of exercisers to non-exercisers in that tertile compared with the US national average, P<0.001. Values presented as means±s.d.
A three-way analysis of variance (exercise × gender × BW tertile), and χ² test was done on the proportion of exerciser to non-exerciser ratio in each BW tertile compared with the national average.
^aDenotes significant differences in BF% between the BW tertiles at P<0.05.

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