In the world of safety, precision matters. HIT technology transforms complex data into actionable insight. Using metrics like G-force, rad/s and cumulative G-force load, HIT doesn’t just count the impacts, it translates them.

 

Research from leading experts, including Rowson & Duma (2013), shows that the combination of linear and rotational forces is the most accurate predictor of concussion risk. That’s why HIT tracks both metrics in every impact. By combining these data points, HIT provides a clearer, more reliable view of brain stress and fatigue, helping athletes, parents, and coaches make smarter decisions about when to rest, recover, or continue training.

G-force

Measures the straight-line impact, like being hit directly from the front or side. 

rad/s

Measures how fast the head twists during impact, the motion most strongly linked to concussions and diffuse brain injuries.

Cumulative G-Force Load

Refers to the total amount of force the brain is exposed to over time - not just from major impacts, but from repeated smaller hits that may seem harmless individually.

No single measurement tells the full story

G-Force

  • Measures straight-line impact forces like a direct blow to the front, back, or side of the head.
  • High G-force events are linked to bruising, skull fractures, and focal injuries.
  • Common in high-speed sports or direct collisions.Text

Rad/s

  • Measures twisting forces when the head spins or whips on impact.
  • Strongly associated with concussions, diffuse axonal injury (DAI), and brain shearing due to tissue layers moving at different speeds.
  • Even low G-forces can be dangerous if combined with high rotational forces.

Cumulative G-Force Load

Research increasingly shows that it’s not always the single “big hit” that causes the most damage, but rather the build-up of sub-concussive impacts over days, weeks, or seasons. These repeated forces can gradually alter brain function and structure, even without obvious symptoms. That’s why tracking cumulative G-force and rotational load is so important: it provides a more complete picture of brain stress, helps identify when an athlete may be nearing a dangerous threshold (like 600G/week), and enables smarter decisions around rest, recovery, and return to play.  

G-Force

A measure of linear acceleration, or how quickly the head speeds up or slows down in a straight line during an impact.

Rad/s

A unit that measures rotational acceleration - how quickly the head is spinning or twisting during an impact.

Cumulative G-Force Load

Refers to the total amount of force the brain is exposed to over time - not just from major impacts, but from repeated smaller hits that may seem harmless individually.

HIT Safety Features

Emergency Contact

When signing up, users add an emergency contact and set an adjustable impact threshold. If a crash exceeds this threshold, the device sends a text with the user’s last known location to their contact. A 45-second window allows the user to cancel the alert.

3 trusted contacts

Users can choose to share their data with up to three trusted individuals, allowing them to follow their movement and progress directly through the platform upon saving your activity to the Logbook.

Emergency Contact

When signing up, users add an emergency contact and set an adjustable impact threshold. If a crash exceeds this threshold, the device sends a text with the user’s last known location to their contact. A 45-second window allows the user to cancel the alert.

3 trusted contacts

Users can choose to share their data with up to three trusted individuals, allowing them to follow their movement and progress directly through the platform upon saving your activity to the Logbook.