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Time course variations of pain assessed with a 5-point Likert scale (a) (0 = no pain, 1 = low pain intensity, 2 = medium pain intensity, 3 = high pain intensity, and 4 = severe pain intensity), MVIC (b), frequency (c), and stiffness (d) in the Achilles tendinopathy (AT) (black dots) and contralateral healthy (white dots) tendon. Bars represent standard errors. * p < 0.05, intergroup comparison.
