Heavy-Load Eccentric Calf Muscle Training For the Treatment of Chronic Achilles Tendinosis

@article{Alfredson1998HeavyLoadEC,
  title={Heavy-Load Eccentric Calf Muscle Training For the Treatment of Chronic Achilles Tendinosis},
  author={H{\aa}kan Alfredson and Tom Pietil{\"a} and Per Jonsson and Ronny P. Lorentzon},
  journal={The American Journal of Sports Medicine},
  year={1998},
  volume={26},
  pages={360 - 366}
}
We prospectively studied the effect of heavy-load eccentric calf muscle training in 15 recreational athletes (12 men and 3 women; mean age, 44.3 7.0 years) who had the diagnosis of chronic Achilles tendinosis (degenerative changes) with a long duration of symptoms despite conventional nonsurgical treatment. [] Key Method Calf muscle strength and the amount of pain during activity (recorded on a visual analog scale) were measured before onset of training and after 12 weeks of eccentric training. At week 0…

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