Zumba

The Zumba class at Heartbeat House focuses on muscle toning exercises.  (Mel Melcon / Los Angeles Times)

The Heartbeat House class attracts a variety of participants, in age, body type and skill level.   (Mel Melcon / Los Angeles Times)

Instructor Shawnee Rioles, foreground, gets off the ground with students.  (Mel Melcon / Los Angeles Times)

The Latin beats keep the class energized.  (Mel Melcon / Los Angeles Times)

Tiffany Ortega, left, Harah Milki, Andrejka Hirschegger and Lauren Ershoff jump to the Latin music.   (Mel Melcon / Los Angeles Times)

Instructor Shawnee Rioles, center front, incorporates light weights into a Zumba toning class that she teaches at Heartbeat House.   (Mel Melcon / Los Angeles Times)

Cassy Clarke, left, uses weights in for arm and shoulder work in the Zumba toning class.  (Mel Melcon / Los Angeles Times)

Jenny Rask, left, Uma Ravishankar, instructor Shawnee Rioles and Tiffany Ortega dance with light weights in the class.   (Mel Melcon / Los Angeles Times)