https://www.marketwatch.com/story/when-exercising-too-much-can-be-fatal-2015-05-05
Some 62,700 people went to the emergency room in 2014 due to injuries related to exercise equipment, with treadmill accidents at No 1, according to the CDC. There were 24,400 injuries associated with treadmills seen in ERs in 2014 versus 23,900 in 2013 and 24,600 in 2012 and 30 reported deaths associated with treadmills from 2003 to 2012.