Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 2 of 2
Full-Text Articles in Medicine and Health Sciences
Genetic Variations In The Dopamine Reward System Influence Exercise Reinforcement And Tolerance For Exercise Intensity, Kyle D. Flack, Christopher Pankey, Kelsey Elise Ufholz, Luann Johnson, James N. Roemmich
Genetic Variations In The Dopamine Reward System Influence Exercise Reinforcement And Tolerance For Exercise Intensity, Kyle D. Flack, Christopher Pankey, Kelsey Elise Ufholz, Luann Johnson, James N. Roemmich
Dietetics and Human Nutrition Faculty Publications
Background: Exercise is a reinforcing behavior and finding exercise highly reinforcing is characteristic of habitual exercisers. Genotypes related to dopamine metabolism moderate the reinforcing value of behaviors, but genetic moderators of exercise reinforcement have not been established.
Purpose: Determine whether singular nucleotide polymorphisms (SNPs) that moderate central reward pathways and pain neurotransmission are associated with exercise reinforcement, tolerance for exercise intensity, and usual physical activity.
Methods: Adults (n = 178) were measured for the reinforcing value of exercise relative to sedentary activities (RRVexercise), minutes of moderate-to-vigorous physical activity (MVPA) and completed the Preference for and Tolerance …
Increasing The Reinforcing Value Of Exercise In Overweight Adults, Kyle D. Flack, Kelsey Elise Ufholz, Luann Johnson, James N. Roemmich
Increasing The Reinforcing Value Of Exercise In Overweight Adults, Kyle D. Flack, Kelsey Elise Ufholz, Luann Johnson, James N. Roemmich
Dietetics and Human Nutrition Faculty Publications
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 …