An 8-week resistance training protocol is effective in adapting quadriceps but not patellar tendon shear modulus measured by supersonic shearwave imaging

Resistance training (RT) can determine changes in muscle and tendon mechanical properties that can now be evaluated properly with Supersonic Shearwave Imaging (SSI). The aim of the present study was to investigate the chronic effect of 8-week RT on Vastus Lateralis (VL) and patellar tendon (PT) mechanical properties. A group of 15 untrained men was submitted to an 8-week quadriceps RT. VL and PT shear modulus (µ) was assessed with SSI pre and post intervention. The RT was effective in promoting VL µ adaptations, but not in significantly affecting PT µ.