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Article type: Research Article
Authors: Van Tiggelen, D.a; b | Coorevits, P.b | Bernard, E.a | Thijs, Y.b | Witvrouw, E.b
Affiliations: [a] Military Hospital Queen Astrid, Department of Physical Medicine and Rehabilitation, Brussels, Belgium | [b] Ghent University, Faculty of Medicine and Health Sciences, Gent, Belgium
Note: [] Address for correspondence: D. Van Tiggelen, Military Hospital Queen Astrid, Dept of Physical Medicine and Rehabilitation, Bruystraat 2, 1120 Brussels, Belgium. E-mail: Damien.VanTiggelen@mil.be
Abstract: Background: Previous studies have indicated that wearing a patellofemoral brace during strenuous training resulted in a decreased incidence of anterior knee pain (AKP). However whether this effect is derived from quadriceps enhancement remains unknown. Study design: Randomized controlled clinical trial. Methods: Ninety-eight military recruits, 35 'with-brace' and 63 without, underwent concentric isokinetic tests at 60 and 240°/s of the quadriceps prior to and following a 6-week basic military training (BMT). The randomly selected 35 subjects 'with brace' received a pair of patellofemoral braces (On-Track, DJ Ortho) and were instructed to wear these braces throughout training. Results: Baseline strength characteristics of the quadriceps were not significantly different between the braced and non-braced group (p > 0.05). No significant time-effect was observed in the braced group. There was a significant decrease in quadriceps strength at 60°/s after BMT in the non-braced subjects (p < 0.001) while at this speed these subjects had a significantly (p =0.02) lower strength compared to their non-braced counterparts. Conclusion: Patellofemoral bracing may be effective in preventing a decrease in quadriceps strength after prolonged strenuous training.
Keywords: Bracing, anterior knee pain, quadriceps
DOI: 10.3233/IES-2011-0411
Journal: Isokinetics and Exercise Science, vol. 19, no. 3, pp. 169-173, 2011
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