Jelle completed his Master in Physical Education at the Vrije Universiteit Brussel (Belgium) in 2006. To further explore his interest in the health benefits and promotion of physical activity, he started a European Master in Health in Physical Activity organized by the universities of Rome, Odense, Oslo and Vienna. After completing this master, he worked as a PE teacher and followed some additional courses in health promotion, psychology and statistics. In 2010, Jelle started a PhD-project at the Vrije Universiteit Brussel and Ghent University. His spare time is devoted to swimming, biking and running.
Currently, Jelle is a PhD-student in the Physical Activity & Nutrition Research group at the Vrije Universiteit Brussel and Ghent University. His PhD-project focuses upon the environmental determinants of physical activity in older adults. He studies which environmental characteristics, such as sidewalk evenness, traffic speed and presence of greenery stimulate or hinder getting outdoors and being active among older adults. Jelle is also involved in studies that will use the same methodology to examine the environmental factors influencing physical activity among children and adults.