Table 1. Increase in signal intensity (edema) for the muscles Vastus Medialis (VM), Vastus Lateralis (VL), Rectus Femoris (RF) and Vastus intermedius (VI) of the 6 MRI-assessed subjects pre-exercise (Pre), on the 2 day after (D2), 7 day after (D7), and between the 21 and 30 (D21-30) days after eccentric exercise. Muscle Days Subjects 1 2 3 4 5 6 VM Pre - - - - - - D2 + + + + + + D7 + + + + + + D21-30 - - + - + - VL Pre - - - - - - D2 + + + + + + D7 + + + + + + D21-30 - - + - + - RF Pre - - - - - - D2 + + + + + + D7 + + + - + + D21-30 - - + - - - VI Pre - - - - - - D2 + + + + + + D7 + + + + + + D21-30 - - + - + - + = presence of edema - = absence of edema.