Fig. 2From: Influence of hyaluronic acid on intra-articular friction – a biomechanical study in whole animal jointsSchematic picture of the experimental setup. The joint is embedded in Polymethylmethacrylat (PMMA) and connected to the material testing machine (MTS) plunge. Joint movement is performed with an angle-controlled triangle shaped rotation (φmax = 10◦) around the long axis (Δφ) under a constant axial preload (F)Back to article page