Zumba, the Latin-inspired dance-fitness class claiming millions of followers around the world, started classes for seniors in 2010. Zumba Gold teaches participants modified versions of the original Zumba dance steps while paying attention to the special needs that seniors bring to fitness. Zumba chair exercises, a specialty of Zumba Gold, are offered to those with physical or psychological limitations. Chair classes last 20 to 30 minutes to ensure that participants get a workout without overdoing it.