Work motivation is an adaptive behavior that allow us to respond effectively to our job demands. The current crisis has introduced changes in some basic labour conditions (timetable, salary, security, etc.) that are affecting a type of motivation determined by external conditions of the worker. Research shows that this nonself-determined motivation is weaker in intensity and less persitent over time than the self-determined motivation. Based on the research we have been developing in recent years we propose some guidelines that focus on encouraging a more autonomous and self-determined motivation. Much of this research has been based on a dynamic understanding of work motivation. Understanding the dynamics of motivation gives us useful guides to action.