The acute effects of exercise on tendon dimensions and vascularity. An exploratory study using diagnostic ultrasound of the male Achilles tendon.

Objectives: This study examines the acute morphological changes (up to three days) in the normal, asymptomatic Achilles tendon (AT) in response to a single bout of exercise in relation to tendon dimensions and vascularity.

Design: Within-subject pre-post design.

Methods: Participants conducted a 7.