Deficits 10-years after Achilles tendon repair

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HORSTMANN, Thomas, Christian LUKAS, Jochen MERK, Torsten BRAUNER, Annegret MÜNDERMANN, 2012. Deficits 10-years after Achilles tendon repair. In: International Journal of Sports Medicine. 33(06), pp. 474-479. ISSN 0172-4622. eISSN 1439-3964. Available under: doi: 10.1055/s-0032-1301932

@article{Horstmann2012-06Defic-22019, title={Deficits 10-years after Achilles tendon repair}, year={2012}, doi={10.1055/s-0032-1301932}, number={06}, volume={33}, issn={0172-4622}, journal={International Journal of Sports Medicine}, pages={474--479}, author={Horstmann, Thomas and Lukas, Christian and Merk, Jochen and Brauner, Torsten and Mündermann, Annegret} }

Brauner, Torsten eng Lukas, Christian Merk, Jochen Horstmann, Thomas Mündermann, Annegret deposit-license Lukas, Christian International Journal of Sports Medicine ; 33 (2012), 06. - S. 474-479 Merk, Jochen 2012-06 2013-02-22T09:26:18Z Horstmann, Thomas Brauner, Torsten 2013-02-22T09:26:18Z Mündermann, Annegret The purpose of this study was to determine the long-term impact of surgical repair and subsequent 6-week immobilization of an Achilles tendon rupture on muscle strength, muscle strength endurance and muscle activity. 63 patients participated in this study on average 10.8 ± 3.4 years after surgically repaired Achilles tendon rupture and short-term immobilization. Clinical function was assessed and muscle strength, strength endurance and muscle activity were measured using a dynamometer and electromyography. Ankle ROM, heel height during heel-raise tests and calf circumference were smaller on the injured than on the contralateral side. Ankle torques during the concentric dorsiflexion tasks at 60 °/sec and 180 °/sec and ankle torques during the eccentric plantarflexion task and during the concentric plantarflexion task at 60 °/sec for the injured leg were significantly lower than those for the contralateral leg. The total work during a plantarflexion exercise at 180 °/sec was 14.9% lower in the injured compared to the contralateral leg (p < 0.001). Muscle activity for the gastrocnemius muscle during dorsiflexion tasks was significantly higher in the injured than in the contralateral limb. Limited ankle joint ROM and increased muscle activity in the injured leg suggest compensatory mechanisms to account for differences in muscle morphology and physiology caused by the injury. Deficits 10-years after Achilles tendon repair

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