Achilles tendon single bout and season long adaptations during early and late collegiate cross-country season.

Aims: To examine single bout and season long Achilles tendon cross-sectional area (CSA) changes before and after running during the early and late cross-country season.

Design: OBSERVATIONAL: repeated measures design study.

Setting: Controlled laboratory setting.

The Achilles Tendon Response to a Bout of Running is not affected by Triceps Surae Stretch Training in Runners.

An acute bout of distance running decreases Achilles tendon CSA. The purpose of this study was to examine if three-week stretch training of the Achilles tendon alters the Achilles tendon thinning response to running. Thirty-three recreational runners were divided into a control group (n = 17) and an intervention group (n = 16).

Does achilles tendon cross sectional area differ after downhill, level and uphill running in trained runners?

In this study we examined how hill running affects the Achilles tendon, a common location for injuries in runners. Twenty females ran for 10 min on each of three randomly ordered grades (-6%, 0 and +6%) at speeds selected to match the metabolic rates. Achilles tendon (AT) cross-sectional area (CSA) was imaged using Doppler ultrasound and peak vertical forces were analyzed using an instrumented treadmill.