[Evidence-based therapy for tendinopathy of the knee joint : Which forms of therapy are scientifically proven?].

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Abstract

[Indexed for MEDLINE] 10. Br J Sports Med. 2007 Jul;41(7):e8. doi: 10.1136/bjsm.2006.032565. Epub 2007 Jan 15. Relationship between landing strategy and patellar tendinopathy in volleyball. Bisseling RW(1), Hof AL, Bredeweg SW, Zwerver J, Mulder T. Author information: (1)Center for Human Movement Sciences, University Center for Sport, Movement and Health, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands. r.w.bisseling@rug.nl OBJECTIVE: The aetiology of patellar tendinopathy (jumper's knee) remains unclear. To see whether landing strategy might be a risk factor for the development of this injury, this study examined whether landing dynamics from drop jumps differed among healthy volleyball players (CON) and volleyball players with a jumper's knee. The patients with jumper's knee were divided into an asymptomatic group with a previous jumper's knee (PJK) and a symptomatic group with a recent jumper's knee (RJK). METHODS: Inverse dynamics analyses were used to estimate lower extremity joint dynamics from 30, 50 and 70 cm drop jumps in the three groups (CON, n = 8; PJK, n = 7; RJK, n = 9). A univariate repeated measures analysis of variance was used to compare the different landing techniques. RESULTS: Data analysis of the landing dynamics revealed that PJK showed higher knee angular velocities (p