# Table 4 Stepwise multinomial logistic regression model estimating predictors of exercise behavior at 24-month follow-up (n = 248)

Step/predictors Resistance vs. Neither Aerobic vs. Neither Combined vs. Neither
OR (95% CI) p OR (95% CI) p OR (95% CI) p
1. Upper body strength (kg) 1.07 (1.01–1.13) 0.025 1.04 (0.99–1.08) 0.10 1.08 (1.04–1.13) < 0.001
2. TPB Difficulty (1–5) a 0.86 (0.53–1.40) 0.54 0.58 (0.41–0.82) 0.002 0.62 (0.43–0.89) 0.010
3. VO2peak (mL/kg∙min) 1.01 (0.93–1.11) 0.77 1.09 (1.03–1.16) 0.004 1.07 (1.01–1.14) 0.031
Aerobic vs. Resistance Combined vs. Aerobic Combined vs. Resistance
OR (95% CI) p OR (95% CI) p OR (95% CI) p
1. Upper body strength (kg) 0.97 (0.92–1.03) 0.28 1.05 (1.01–1.09) 0.023 1.02 (0.96–1.07) 0.58
2. TPB Difficulty [1–5] a 0.67 (0.41–1.10) 0.11 1.08 (0.76–1.54) 0.67 0.72 (0.44–1.19) 0.20
3. VO2peak (mL/kg∙min) 1.08 (0.99–1.17) 0.10 0.98 (0.93–1.04) 0.52 1.06 (0.97–1.15) 0.22
1. 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
2. a High scores indicate higher difficulty in exercise