Robuta

https://nexerciser.org/
The Nexerciser is an inexpensive piece of exercise equipment designed specifically for isometric an isotonic neck muscle testing and exercise.
cervical spineinjury preventionstrength trainingmanagedysfunction
https://www.sciencedaily.com/releases/2018/03/180306085415.htm
Despite claims that helmets do not protect the cervical spine during a motorcycle crash and may even increase the risk of injury, researchers found that,...
cervical spine injuryhelmetuseassociatedreduced