Abnormal isokinetic time-to-peak torque of the medial rotators of the shoulder in subjects with impingement syndrome

Journal of Shoulder and Elbow Surgery
Stela M Mattiello-RosaTania Fátima Salvini

Abstract

The time-to-peak torque (TPT) and the peak torque ratio of the lateral to medial rotators (LR/MR) during isokinetic lateral and medial rotation of the shoulder were evaluated in patients with shoulder impingement and in healthy subjects. Fifteen patients with shoulder impingement on the dominant side and 9 healthy subjects were evaluated. TPT and LR/MR were measured bilaterally during isokinetic concentric lateral and medial rotation at 60 degrees/s and 180 degrees/s. The impingement group showed a bilateral decrease in the TPT during medial rotation for both 60 degrees/s and 180 degrees/s. No differences were found in the LR/MR between the groups. It is proposed that decreased (TPT) of the medial rotators can be used as a tool for early detection of shoulder impingement. Notably, the decreased time-to-peak torque of the medial rotators may occur before the alteration in the peak torque ratio.

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Citations

Feb 5, 2010·European Journal of Applied Physiology·Paula Rezende CamargoTania Fátima Salvini
Jul 13, 2013·Manual Therapy·Paula R CamargoLori A Michener
Mar 19, 2009·European Journal of Applied Physiology·Paula Rezende CamargoTania de Fátima Salvini
Oct 24, 2012·Journal of Science and Medicine in Sport·Gisele G ZancaStela M Mattiello
Nov 1, 2011·Journal of Shoulder and Elbow Surgery·Annelies G MaenhoutAnn M Cools
Jul 9, 2009·Journal of Orthopaedic Research : Official Publication of the Orthopaedic Research Society·Yan DoironMartin Simoneau
Aug 21, 2013·Physical Therapy in Sport : Official Journal of the Association of Chartered Physiotherapists in Sports Medicine·Andrew McDonough, Lennard Funk

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