A group of Latino seniors soon will be stepping out on the dance floor in the name of medical research. A study being coordinated by a University of Illinois at Chicago professor will see if doing traditional dances such as salsa and cha-cha-cha can spark more physical activity in older Latinos and improve their health. UTMB’s Kyriakos Markides, an expert on aging and a consultant on this study, noted that Latinos have significant health problems. Although they tend to live about two years longer than whites, they are at greater risk for diabetes, obesity, depression, cognitive impairment and disability, he noted.