The<unk>  <unk>  is a measure of the likelihood of<unk><unk>  arising from an impact. The<unk>  can be used to assess safety related to vehicles, personal protective gear, and sport equipment. Normally the variable is derived from the measurements of an accelerometer mounted at the center of mass of a crash test dummy’s<unk> , when the dummy is exposed to crash forces. It is defined as: where t1 and t2 are the initial and final times (in seconds) chosen to maximize<unk> , and acceleration a is measured in gs (standard gravity acceleration). The time duration, t2 – t1, is limited to a maximum value of 36 ms, usually 15 ms. This means that the<unk>  includes the effects of<unk>  acceleration and the duration of the acceleration. Large accelerations may be tolerated for very short times. At a<unk>  of 1000, there is an 18% probability of a severe<unk><unk> , a 55% probability of a serious<unk>  and a 90% probability of a moderate<unk><unk>  to the average adult.
Head injury criterion
Risk factor
Disease cluster
HeartRhythm Case Reports
Injured reserve list
Deemed status
VACTERL association
Cancer cluster