The purpose of this study is to assess the effect of a 6 weeks physical activity program on burnout risk in secondary school teachers. Also, the difference between the effects of moderate en vigorous-intensity physical activity will be investigated.

Given the increased risk of burnout among secondary school teachers, effective interventions are needed. Physical activity may play a big role in preventing and/or reducing burnout. Therefore the purpose of this research is to investigate the effect of physical activity on the risk of burnout in secondary school teachers. The participants in the intervention group will be asked to perform a specific physical activity program (including running and/or cycling at a moderate or vigorous intensity) for 6 weeks. The control group will be asked to keep their lifestyle as it was prior to the study. To assess the effect of this activity program, the participants will have to fill in a questionnaire at three time points. Lastly, the participants have to fill in an activity diary every day, enabling to assess intervention adherence.

Inclusion Criteria:

• Participants who are not meeting the guidelines for physical activity.
• Participants who are willing to run or cycle.

Exclusion Criteria:

• Participants who are not speaking the Dutch language.
• Participants unable or unwilling to give informed consent.
• Participants who are not able to be physically active, due to injuries, physical disabilities, etc.
• Participants who already met the guidelines for physical activity.
• Participants who are following a diet.
• Participants who have been following psychological treatment in the past 6 months.