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Increasing the Reinforcing Value of Exercise in Overweight Adults.


ABSTRACT: Objectives: This study determined whether a moderate- or high-dose exercise program increases exercise reinforcement. Increasing the relative reinforcing value of exercise (RRVexercise; i.e., incentive sensitization of exercise) may increase the usual physical activity (PA) participation. Preference and/or tolerance for the intensity of exercise was also assessed. Design: Sedentary men and women (body mass index, BMI: 25-35 kg/m2) were randomized into parallel exercise training groups expending either 300 (n = 18) or 600 (n = 18) kcal/exercise session, five sessions/week, for 12 weeks. Methods: The RRVexercise was determined by how much work was performed for exercise relative to a sedentary alternative in a progressive ratio schedule task. Preference and tolerance for exercise intensity were determined by questionnaire. Results: RRVexercise increased (P < 0.05) in both groups. Exercise reinforcement, defined as the amount of work completed for exercise without taking sedentary activity into account, increased (P < 0.01) in the 600 kcal group only. Preference and tolerance for exercise intensity increased (P < 0.01) in both groups, which predicted increases in RRVexercise. Conclusion: Expending 300 or 600 kcal, 5 days/week increases RRVexercise, while 600 kcal, 5 days/week may be needed to increase exercise reinforcement.

SUBMITTER: Flack KD 

PROVIDER: S-EPMC6902083 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature

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Increasing the Reinforcing Value of Exercise in Overweight Adults.

Flack Kyle D KD   Ufholz Kelsey K   Johnson LuAnn L   Roemmich James N JN  

Frontiers in behavioral neuroscience 20191203


<b>Objectives</b>: This study determined whether a moderate- or high-dose exercise program increases exercise reinforcement. Increasing the relative reinforcing value of exercise (RRV<sub>exercise</sub>; i.e., incentive sensitization of exercise) may increase the usual physical activity (PA) participation. Preference and/or tolerance for the intensity of exercise was also assessed. <b>Design</b>: Sedentary men and women (body mass index, BMI: 25-35 kg/m<sup>2</sup>) were randomized into parallel  ...[more]

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