Engineers at the University of Leeds (UK) are developing a way to capture the kinetic energy produced when soldiers march and use it to power their equipment.

The new system designed to convert foot-power into battery power could help troops reduce the weight of their packs by up to 10kg.

The devices will use high tech ceramics and crystals as piezoelectric transducers in order to convert mechanical stress into an electric charge.

The project will consider the optimum placement of the 'energy harvesting' devices, including the back-pack straps and around the knee to provide active support, capturing energy but also cushioning the impact when legs are bent, joints compressed or their boots strike the ground.

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