Members of two long-running health and fitness centers in the Hudson Valley have learned that the business is changing hands. For generations of Hudson Valley residents, joining Mike Arteaga's gym was practically a rite of passage. After 53 years in business, Mike Arteaga has sold his fitness centers in Poughkeepsie and Highland to John and Liz Parisio, the owners of IXL Health & Fitness. The acquisition expands IXL from two locations to four, creating one of the largest locally owned fitness organizations in the Hudson Valley. Last year, they purchased IXL Health & Fitness, which operates clubs in Rhinebeck and Saugerties.