Author

René Paasch

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Sep 2026

Substance-Related Decision-Making Trajectories in Fitness Contexts: A Person-Centered Longitudinal Study.

BACKGROUND Preventing image- and performance-enhancing drug (IPED) use in recreational fitness settings remains a public health concern. Although theory-informed interventions have been associated with lower risk acceptance and substance-related behavior, heterogeneity in underlying decision-making processes remains in...

René Paasch, Gunnar Mau · Substance Use & Misuse · 0 citations

Review Open access Sep 2026

Replicating motivational and cognitive-motivational typologies of doping attitudes among recreational fitness athletes: implications for harm reduction and risk communication

The non-medical use of image- and performance-enhancing drugs (IPEDs) in recreational fitness represents an important public health and harm-reduction challenge. While prevalence estimates provide useful benchmarks, they often obscure the motivational and cognitive-motivational heterogeneity underlying substance-use de...

René Paasch, Gunnar Mau · Harm Reduction Journal · 0 citations

Open access Sep 2026

Understanding Risk Acceptance in Performance Enhancing Substance Use: A Cluster Randomized Prevention Study Among Recreational Fitness Athletes.

Changes in risk acceptance appear to represent a key psychological mechanism associated with intervention-related reductions in booster use, highlighting the importance of psychologically informed prevention strategies tailored to psychosocial athlete profiles in recreational fitness populations.

René Paasch, Gunnar Mau · Psychology of Sport And Exer... · 0 citations

Review Open access Aug 2026

Psychosocial correlates of performance-enhancing substance use intentions and prevention needs among recreational gym users: a theory-informed mixed-methods study

Associations of Theory of Planned Behavior constructs, selected Health Belief Model constructs, knowledge, and risk acceptance with PES-use intentions were examined and prevention needs were explored using a mixed-methods design.

René Paasch, Gunnar Mau · BMC Psychology · 0 citations