The news of the death of the 4-year-old daughter of former heavyweight boxing champion Mike Tyson was stunning on Tuesday, especially since her death followed an accident on a home treadmill. Normally, we cover the fitness industry as it relates to health clubs, but now is as good a time as any to think about the dangers that can arise with children and treadmills. This story examines the number of accidents that have occurred in recent years involving children and exercise equipment.