STOCKTON - Sylvia Orozco moved her hips to the sounds of merengue. The group of about 40 women danced in unison to Latin music, feeling carefree, energetic and even a bit sexy. "I love it," Orozco ...

I heard about Zumba around the time I learned I had arthritis in my right shoulder. Any upper body movement — even brushing my hair — agitates my bum arm. So, a vigorous exercise regimen seemed out of ...