Fig. 2: Changes in the mLV ROI size after exercise in representative participants in the single-bout and long-term exercise groups.

2D coronal IR-ALADDIN baseline images (a, c) and reconstructed 3D BB images (b, d) depict an increase in the mLV ROI size after exercise in the long-term exercise group (c, d) but not in the single-bout exercise group (a, b). mLV meningeal lymphatic vessels, ROI region-of-interest.