Friday, October 12, 2012 New in the Literature: Eccentric Strengthening for Achilles Tendinopathy (Am J Phys Med Rehabil. 2012. Oct 5. [Epub ahead of print]) Eccentric strengthening was more effective than concentric strengthening in reducing pain and improving function in patients with Achilles tendinopathy, say authors of an article published online in American Journal of Physical Medicine & Rehabilitation. Thirty-two men with Achilles tendinopathy were assigned to either the experimental group (n = 16) that performed eccentric strengthening or the control group (n = 16) that performed concentric strengthening for 8 weeks (50 minutes per day, 3 times per week). A visual analog scale, isokinetic muscle testing equipment, the side-step test, and the Sargent jump test were used to assess pain, muscle strength, endurance, and functional fitness factors before and after the intervention. In comparison with the control group, the experimental group showed significant improvement in pain, ankle dorsiflexion endurance, total balance index, and agility after the intervention. However, there was no significant difference in dexterity between the 2 groups.