As the song “Sexy and I Know It” by LMFAO blared from her boombox, Nancy Whipple led the 25 participants in her Thursday night water aerobics class through a vigorous routine that had t… ...

The water exercises in these trials included aerobics, Zumba dance, yoga and jogging, six to 12 weeks. People exercised mostly two to three times a week, with most sessions lasting an hour.

Exercise and fun are seldom used in the same sentence — except by participants describing water aerobics classes taught by Shauna Utz. “Shauna’s classes are addictive,” said Marie McDermed ...