Patterns and predictors of exercise behavior during 24 months of follow-up after a supervised exercise program during breast cancer chemotherapy

Table 2 Stepwise multinomial logistic regression model estimating predictors of exercise behavior at 6-month follow-up (n = 263)

Step/predictors	Resistance vs. Neither		Aerobic vs. Neither		Combined vs. Neither
Step/predictors	OR (95% CI)	p	OR (95% CI)	p	OR (95% CI)	p
1. VO_2peak (mL/kg∙min)	0.99 (0.91–1.08)	0.90	1.09 (1.03–1.16)	0.005	1.12 (1.05–1.19)	< 0.001
2. TPB Motivation (1-5)	1.25 (0.68–2.29)	0.47	1.47 (0.93–2.31)	0.10	2.03 (1.22–3.36)	0.006
3. TPB Plan (1-5)	1.51 (0.96–2.40)	0.08	1.28 (0.92–1.76)	0.14	1.59 (1.13–2.23)	0.008
	Aerobic vs. Resistance		Combined vs. Aerobic		Combined vs. Resistance
	OR (95% CI)	p	OR (95% CI)	p	OR (95% CI)	p
1. VO_2peak (mL/kg∙min)	1.10 (1.01–1.19)	0.029	1.02 (0.97–1.08)	0.37	1.12 (1.03–1.22)	0.006
2. TPB Motivation [1,2,3,4,5]	1.17 (0.62–2.21)	0.62	1.38 (0.83–2.30)	0.22	1.62 (0.84–3.15)	0.15
3. TPB Plan [1,2,3,4,5]	0.84 (0.53–1.34)	0.47	1.25 (0.90–1.72)	0.18	1.05 (0.65–1.69)	0.84

Resistance = meeting resistance exercise guideline only; Aerobic = meeting aerobic exercise guideline only; Neither = meeting neither exercise guideline; Combined = meeting both exercise guidelines; TPB = theory of planned behavior, OR represents the change in the odds of a meeting a guideline for a one-unit change in the variables

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