Barry Williams holds a Masters degree in Applied Biomechanics and specialises in force and video analysis of running technique, with corrective strength and conditioning and gait retraining interventions helping to optimise your performance and mitigate injury risk.

Carbon-plated 'supershoes' have changed the landscape for many distance runners, with running economy improvements helping elites break numerous records. However, there is a growing body of evidence that the carbon plate and foam stacking technologies used must match the runners' technique and, if they don't, they can result in little performance benefit and a greater injury risk, especially through deconditioning of the achilles complex.

This brief assessment will allow you to test two pairs of running shoes against each other and have both analysed using force sensor technology that takes over 1,200 readings per second. Held near Richmond Park, the testing will take place 31st January and 1st February and is limited to 30 people. It costs nothing.