In this study, we analysed the triceps surae (TS) muscle-tendon unit (MTU) mechanical properties (muscle strength and tendon stiffness) in elite jumping event athletes (long jump, triple jump, high jump, pole vault) and monitored the training-induced alterations in these properties over one year in nine elite jumpers, in order to detect potential changes in the uniformity of adaptation within the TS MTU. The findings indicate to a higher TS muscle strength and Achilles tendon stiffness in the take-off leg in comparison to the swing leg. The longitudinal monitoring revealed a concordant muscle and tendon adaptation in the TS MTU in both legs in the selected athletes
