A randomized-controlled single-blind trial was conducted to investigate the clinical, structural and functional effects of peritendinous corticosteroid injections (CORT), eccentric decline squat training (ECC) and heavy slow resistance training (HSR) in patellar tendinopathy. Thirty-nine male patients were randomized to CORT, ECC or HSR for 12 weeks. Function and symptoms (VISA-p questionnaire), tendon pain during activity (VAS), treatment satisfaction, tendon swelling, tendon vascularization, tendon mechanical properties and collagen crosslink properties were assessed at 0 weeks, 12 weeks and at follow-up (half-year).
The authors conclude that CORT has good short-term but poor long-term clinical effects, in patellar tendinopathy. HSR has good short- and long-term clinical effects accompanied by pathology improvement and increased collagen turnover.
M. Kongsgaard, V. Kovanen, P. Aagaard, S. Doessing, P. Hansen, A. H. Laursen, N. C. Kaldau, M. Kjaer, S. P. Magnusson. Corticosteroid injections, eccentric decline squat training and heavy slow resistance training in patellar tendinopathy. Scandinavian Journal of Medicine & Science in Sports, Articles online in advance of print, Published Online: 28 Sep 2009.