Summary of maximum resultant headform acceleration for first impact (in bold) and mean maximum resultant headform acceleration for six repeat impacts (in parentheses) for lateral and centre front impacts. Acceleration is in gravities
| Drop height (m) and velocity (m/s) | McIntosh & McCrory1 (mean of rugby union models) | Rugby union model (2002) (standard) | Canterbury brand honeycomb headgear by Body Armour | Albion Headpro | ||
|---|---|---|---|---|---|---|
| Standard | Modified | Standard1 | Modified | |||
| In the standard and modified forms of the Honeycomb headgear the foam was 10 and 16 mm thick respectively. | ||||||
| –, Test series stopped because of large headform accelerations. | ||||||
| Lateral impacts | ||||||
| 0.3 (2.4) | 336 | 234 (346) | 276 (399) | 69 (91) | 114 | 83 (94) |
| 0.4 (2.8) | 449 | – | 494 – | 110 (165) | 141 | 134 (165) |
| 0.5 (3.1) | – | – | – | 387 (520) | 482 | 171 (231) |
| 0.6 (3.4) | – | – | – | 516 (623) | 524 | 370 (577) |
| Centre front impacts | ||||||
| 0.3 (2.4) | No original data1 | No data collected | 689 (714) | 123 (191) | No original data1 | 206 (323) |
| 0.4 (2.8) | – | 273 (436) | 326 (506) | |||