Portable Gait Analyser was invented by Professor Jeffrey Cheung Tai-kin, which assesses the way people walk and highlights their biomechanical abnormalities. It is used in sports biomechanics to help athletes run more efficiently and to identify posture-related or movement-related problems for people with injuries.

The new method puts a single sensor behind a patient's waist and requires the patient to walk 20 steps. Compared with traditional methods that use up to 15 cameras and take hundreds of pictures, this invention is simpler, faster and cheaper.

It won a gold medal with distinction in the sports category, as well as the Prize of the Romanian Association of Nonconventional Technologies (special medal) at the 45th International Exhibition of Inventions, Geneva. This invention proudly won the Grand Award and Gold Medal at the Asia Exhibition of Inventions Hong Kong (AEI) in 2019.