# Table 3 Stepwise multinomial logistic regression model estimating predictors of exercise behavior at 12- month follow-up (n = 263)

Step/predictors Resistance vs. Neither Aerobic vs. Neither Combined vs. Neither
OR (95% CI) p OR (95% CI) p OR (95% CI) p
1. VO2peak (mL/kg∙min) 1.04 (0.95–1.15) 0.38 1.12 (1.05–1.20) < 0.001 1.07 (1.00–1.14) 0.05
2. TPB Difficulty (1–5) a 0.91 (0.56–1.48) 0.72 0.80 (0.58–1.12) 0.19 0.60 (0.43–0.85) 0.004
3. Sleep quality (0–21) a 0.93 (0.83–1.06) 0.27 0.95 (0.88–1.03) 0.23 1.05 (0.98–1.14) 0.19
4. lower body endurance (reps) 0.99 (0.97–1.00) 0.12 1.00 (1.00–1.01) 0.42 1.01 (1.00–1.02) 0.11
Aerobic vs. Resistance Combined vs. Aerobic Combined vs. Resistance
OR (95% CI) p OR (95% CI) p OR (95% CI) p
1. VO2peak (mL/kg∙min) 1.08 (0.98–1.18) 0.11 0.95 (0.90–1.00) 0.06 1.02 (0.93–1.12) 0.64
2. TPB Difficulty (1–5) a 0.88 (0.55–1.41) 0.59 0.75 (0.55–1.03) 0.07 0.66 (0.40–1.07) 0.09
3. Sleep quality (0–21) a 1.02 (0.91–1.15) 0.73 1.11 (1.03–1.19) 0.005 1.13 (1.00–1.27) 0.049
4. lower body endurance (reps) 1.02 (1.00–1.04) 0.043 1.00 (1.00–1.01) 0.30 1.02 (1.00–1.04) 0.015
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 and worse sleep quality