Continued from page 1

McCarthy said the testing is ongoing. The next step could involve additional laboratory work involving more speeds and impact points, or perhaps on-field analysis of performance. The NFL and the union are also considering expanded research to include other kinds of equipment.

“This has been a joint project throughout, and the intent was to take a look at existing helmets,” McCarthy said. “It’s an initial step in learning the effectiveness of the equipment, and we hope the manufacturers themselves can use the information to continue to improve.”