The families say the centers failed to follow their own safety rules. The families say their children suffered leg fractures. The centers named in the lawsuits are Xtreme Trampoline in Carol Stream and Sky High Sports in Niles.
The lawsuits claim that safety rules were violated when the parks failed to follow their own safety rules and that the children's leg fractures were a result of that negligence.
Nevin Hofing says he took his 5-year-old daughter Eliana to Sky High Sports for some fun but his daughter was injured just minutes after getting on the trampoline.
"To see your child in that kind of pain, it is horrible," said Nevin Hofing. "She was crying, saying her leg was hurting.
The lawsuit claims that safety rules were violated when the park's personnel allowed more than one child to jump on the trampoline at the same time.
"Regulations should be that there is only one person jumping on a trampoline at one time," said lawyer Antonio Romanucci. "Both the bones of her lower legs broke."
An official from Sky High Sports, owned by Jump Niles, says they were unaware of the lawsuit and that their employees go through extensive training and monitor children.
"If they were doing their job, this type of accident doesn't happen," Romanucci said.
The Illinois Department of Labor says, because the trampolines aren't mechanized or power, they aren't regulated by the department.
Eliana's father says her legs were in a cast for weeks and she had to use crutches.
"When you look at the break, it is right below the growth plate," Romanucci said. "It could affect her as she is growing and it could affect the length of her leg."
ABC7 contacted Xtreme Trampoline in Carol Stream. The general manager said she was unaware of the lawsuit.
An official of Sky High Sports in Niles also said they were unaware of the lawsuit. She added that they have 15 trampoline facilities across the country and pride themselves on extensively training their employees about safety procedures.