“…Belgium, which serves as a context for this study, imposed a so-called light lockdown. This light lockdown meant a closing of schools, sports clubs, sports infrastructures, and the cancellation of all events, but people were encouraged to exercise outdoors (limited, however, to walking, running, cycling, and roller skating) with one sporting friend [ 18 , 41 , 42 ]. Because a large share of sports participants were not able to practice their favourite sport in sports infrastructures or sports clubs, people discovered other easy-to-practice sports, such as running, walking or cycling (low threshold, no infrastructure, limited cost, possible to practice alone, etc.)…”