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At the age of five, Hepworth was diagnosed with Perthes disease - a condition that effects the hip joint - and was unable to participate in any sport for three years.

This proof-of-concept study showed that applying resistive forces about one hip joint and assistive forces about the other with their exoskeleton mimicked the effects of split-belt treadmill training in neurologically intact individuals.

Former world number one Murray, with metal inserted into his hip joint, continues to plug away as he aims for another deep run at a major.

She had four operations on an infected hip joint and received six general anaesthetics.

For example, large-breed dogs like golden and Labrador retrievers are prone to hip dysplasia, a deformity of the hip joint.