Table 1.
Impact parameters.
| Drop height (mm) | Impact velocity (m/s) | Head/neck impact energy (J) | Whole system impact energy (J) |
|---|---|---|---|
| 150 | 1.7 | 8.2 | 9.8 |
| 300 | 2.4 | 16.1 | 19.6 |
| 450 | 3.0 | 25.2 | 30.6 |
| 600 | 3.4 | 32.4 | 39.3 |
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