The new-concept full-face-type helmet with removable cheek pads
Related Experiment Video
Updated: Oct 28, 2026

A Test Bed to Examine Helmet Fit and Retention and Biomechanical Measures of Head and Neck Injury in Simulated Impact
Published on: September 21, 2017
M Nemoto1, M Shida, A Ichimura
1Department of Traumatology and Critical Care Medicine, Kyorin University School of Medicine, Tokyo, Japan. mabu@mvg.biglobe.ne.jp
Background:
The American College of Surgeons proposed a method of removing helmets. But the problem with full-face-type helmets is that their shape makes them difficult to remove.
Methods:
A dummy doll was fixed to a smooth bed surface in the supine position, and a full-face-type helmet with a hook attached to the vertex was placed on the doll's head. A spring balance was attached to the hook, traction was applied to the helmet through the spring balance, and the maximum tension needed to completely remove the helmet was measured.
Results:
A tension of 13.2 +/- 1.8 kg was found. But when cheek pads were removed, the tension required to remove the helmet was 1.7 +/- 0.2 kg.
Conclusion:
We devised a full-face-type helmet that uses removable cheek pads so that helmet removal can be performed safely by removing only the cheek pads in the event of an accident.
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