Table 5. Quantile regression models predicting changes in total food reinforcement (P_maxTotal) among participants who exercised for 12 weeks at a frequency of either two or six days per week.

Effect	β	SE	P
Full model of all predictors
Intercept	-161.7	151.3	0.32
ExEE/week1	-0.05	0.06	0.43
Exercise Frequency2	68.8	75.4	0.39
ΔFM3	-26.6	21.4	0.25
ΔFFM4	-72.6	22.7	0.01
ΔREE5	-0.04	0.18	0.84
ΔHunger6	1.69	1.83	0.38
Reduced model
Intercept	-36.2	21.7	0.11
ΔFM3	-7.01	11.2	0.54
ΔFFM4	-46.2	18.5	0.02
ΔREE5	0.06	0.11	0.54

¹ExEE/week: Exercise energy expenditure (in kilocalories) per week

²Exercise Frequency: Participants were randomly assigned to exercise 6 days per week or 2 days per week.

³ΔFM: kg of fat mass change: (12-week kg of body fat mass minus baseline kg body fat)

⁴ΔFFM: kg of fat-free mass change (12-week kg of fat-free mass minus baseline kg of fat free mass)

⁵ΔREE: Changes in REE (12-week value minus baseline value) in kcal/24 hrs.

⁶ΔHunger: Hunger assessed prior to each progressive ratio schedules of reinforcement task (1–10 scale).