HONOLULU (KHNL) -- Oahu elementary school students displayed their athleticism Friday all while helping a great cause.
Backwards, forwards, or criss cross, no matter how Kamehameha Elementary School students jump rope, it's all for a good cause.
More than 750 students swing jump ropes for two hours in the schools annual jump rope for heart event.
Lynn Tagami is the school's physical education teacher.
"Hawaiian population is kind of high on the list of heart disease and stroke and we know that many of our students have family members that might have a problem or will in the future have problems so when they raise money for the American Heart Association they actually kind of help their family also and help their community," she said.
The upbeat music helps these fourth graders hopping.
"We're working our hardest today because we really want to help with people with lung cancer and stuff like me I have asthma so yeah it's gong really good," Hokulani Rivera said.
"We've been practicing for a long time, since the beginning of the school year," Kamoku Panee said.
"They are in a team of six and two students jump at a time and they take turns so they have rest but sometimes it's hard to keep them from jumping," Tagami said.
So far, the students have raised about $57,000 in this year's event, and have gained exercise that is priceless.