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Comparative Study
. 2014;14(2):137-43.
doi: 10.1080/17461391.2013.777797. Epub 2013 Mar 12.

The Influence of Ankle Dorsiflexion on Jumping Capacity and the Modified Agility T-Test Performance

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Comparative Study

The Influence of Ankle Dorsiflexion on Jumping Capacity and the Modified Agility T-Test Performance

Juan J Salinero et al. Eur J Sport Sci. .

Abstract

Dorsiflexion sport shoes aim to increase jumping capacity and speed by means of a lower position of the heel in comparison with the forefoot, favouring additional stretching of the ankle plantar flexors. In previous studies, contradictory results have been found on the benefits of using this type of shoe. With the aim of comparing a dorsiflexion sport shoe model (DF) with a conventional sport shoe (CS), 41 participants performed a countermovement jump (CMJ) test and an agility test (MAT) with both models of shoe. There were no significant differences in the jump test [CS=35.3 cm (6.4) and DF=35.6 cm (6.4), P>0.05]. In the agility test, the conventional shoe obtained better results than the model with dorsiflexion with regard to time taken to complete the circuit [CS=6236 ms (540) and DF=6377 ms (507), P<0.05)]. In spite of producing pre-stretching of the plantar muscles, the DF sport shoes were not effective for improving either jump power or agility in a specific test.

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