Example, identifying helmet damage. a Visible cracks can be seen
Mountain Bike Concussions Explained [Podcast #129] - Singletracks
Smart football helmet may help detect concussions
Football Helmet Monitors Impacts [video]
Bell Full-9 Helmet - Reviews, Comparisons, Specs - Full Face
HIT Impact detection device measures G-Force to aid rider
New helmets won't end concussions, National Sports
The Ghost in My Brain: How a Concussion Stole My Life and How the
Football helmet with liquid padding may prevent concussions
Helmet Smart Foam Signals Potential Concussions in Real Time
The Kali Invader 2.0 Helmet
Phil Hughes: Could head injuries be eliminated? - BBC News
Wearable sensors for monitoring the internal and external workload
Football Concussions: Prevention, Diagnosis & Recovery