The relatives' rates synchronized throughout the event, which lasted 30 minutes, with 28 fire-walkers each making five-second walks.
亲戚的心率在持续30分钟，由28名火上行走者每人5秒行走的测试中与受测者同步。
2
Ultimately, they monitored 12 fire-walkers, 9 spectators related to fire-walkers, and 17 unrelated spectators who were just visiting.
最后，他们检测了12名火上行走者，9名相关观众，和17名来这游览的无关人员。
3
The heart rates of relatives and friends of the fire-walkers followed an almost identical pattern to the fire-walkers’ rates, spiking and dropping almost in synchrony.