Wang PY, et al. - In this cohort study with historical controls, researchers assessed the impacts of vibration on the microcirculation of the Achilles tendon and the features of the Achilles tendon rupture after surgery. Thirty-two candidates were enlisted in the vibration and control groups (including 19 and 13 candidates) who had unilateral Achilles tendon repairs. Immediately after the five-minute vibration, acute vibrational effects were noted. In comparison with the control group, lower total hemoglobin and oxygen saturation were seen in the repaired legs for 3 and 6 months post-surgery in the vibration group. In both repaired and uninjured legs, the vibration group also exhibited higher tendon stiffness, heel raising height and hopping distance 3 or 6 months after surgery. At 6 months after surgery, the microcirculatory characteristics 2 months after surgery were correlated with the results. The authors concluded that differences in microcirculatory characteristics and improved outcomes of rehabilitation were observed in the legs with an Achilles repair undergoing the early vibration intervention.