The Arizona Republic today released the transcript of the 911 call made after the mother of Mike Tyson's daughter, Exodus, 4, found the girl accidentally strangled on a cord of a treadmill machine. The transcript underscores how quickly a child can become unconscious when an airway is blocked.

"When a kid gets strangled it only takes about seven to 14 seconds for them to go unconscious," Tracey Fejt, an injury prevention specialist in Arizona, told the newspaper. "They might get their head in, but they won't get out."

Investigators estimate that the girl was alone for only a matter of minutes before becoming entrapped by a slacked cord -- possibly under the console -- that left her trapped, unconscious and suffocated.

Unfortunately, it often takes this type of high-profile accident to draw attention to common hazards. After the child's death, our resident safety expert, Don Mays, was asked to appear on CNN's Situation Room to discuss the dangers of treadmills and other pieces of large exercise equipment. Take a moment to watch the interview and then heed the advice.

As Mays told the the interviewer, "Our recommendation is to keep your children away from a treadmill whether it's working or not."