This project contains one folder (**Materials & Methods**) and one zip-file (**DataAnalyses**) The **Materials & Methods** folder contains the file 'ExperimenterProtocol', which describes the overall experimental procedure. You can use this description to reproduce the procedure and it refers to files that you can find in all other folders. All tasks in which the dynamometer are used (MVC measurement, handgrip exercise and the decision-making task) can be found within the zip file _'DynamometerTasks'_. The folder _'PythonTasks'_ contains the zipfiles for the n-back task as well as the pre- and post measures for the handgrip exercise and documentary watching. The post-experiment questionnaire is included as a PDF file. The **DataAnalysis** zip contains all confirmatory and exploratory analyses, data and the R-project file. Start by opening the R-project file and run the scripts from there (i.e., within R). Gender has been excluded from all datasets to protect participant privacy.