For operators, Preva Mobile deepens member relationships by providing a mobile platform for managing all fitness activities, not just those on Preva enabled equipment or inside the gym.
Mrs Christoffersen is a leading member of a pressure group seeking to persuade air operators to conduct research into DVT and to improve conditions for passengers in the meantime.
In July, a two-member bench of the tribunal delivered a split verdict on whether operators could continue providing services in areas where they don't hold bandwidth.