
217Slips and Falls
which support the premise that, for restrained occupants with a head restraint available,
single exposure to a rear end collision with a Delta V of 8 KPH or less is within human
tolerance levels, and extends the data base to include females and those with some degree
of pre-existing spinal pathology.”
To examine a case study where the Delta V’s are minimal or negligible, we will assume
a worst-case scenario of a Delta V of 5 mph (7.33 /s). e accelerations can be calculated
to the occupants as follows: Since the dierential distance between the lower spine and
the rest of the spine is approximately 2.5 in. or approximately ...