Fig. 1.

Participants were examined in a cross-over design. At the first visit, all study participants performed a maximal treadmill test (MTT). At the second and third visits, participants performed a submaximal 2-km treadmill test (SMTT) and a control condition (CC) in randomised order. Central retinal arteriolar (CRAE (in micrometre)) and venular (CRVE (in micrometre)) equivalents were measured before and after exercise cessation using a static retinal vessel analyser (SVA)