What specific types of head acceleration are measured by the mouthguards?

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The mouthguards measure both linear and rotational head acceleration.

The instrumented mouthguards being used in English football's extended study on heading impacts are equipped with sensors designed to capture detailed data on head movements. These devices measure forwards and backwards linear acceleration, which indicates the direct impact force on the head. Additionally, they record rotational acceleration as the head moves, providing insights into the complex forces experienced during impacts.
Measurement of Linear Acceleration

The PROTECHT mouthguards are engineered to quantify linear acceleration in the forward and backward directions. This measurement is crucial for understanding the direct impact forces that the head sustains when making contact with a football. By capturing this data, researchers can assess the magnitude and direction of impacts.
Detection of Rotational Acceleration

Beyond linear forces, the mouthguards also measure rotational acceleration. This captures the head's movement as it turns or twists side-to-side, or forwards and backwards on oblique angles. Understanding rotational forces is important because they can contribute significantly to the overall stress on the brain and neck structures.
Comprehensive Impact Data Collection

The combination of linear and rotational acceleration measurements allows for a comprehensive understanding of the forces applied to a player's head. This data helps researchers analyse every dimension of head movement during contact with the ball. Consequently, they can determine the forces being applied, their frequency, and how these vary across different types of headers and individuals.

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What specific types of head acceleration are measured by the mouthguards?

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