The approach speed is calculated based on the horizontal displacement of the center of mass (or the athlete’s hip) during the final strides before take-off.

This parameter allows for the evaluation of the athlete’s final acceleration before the jump and their control upon reaching the take-off board. 

Contact time measures the duration during which the foot remains in contact with the ground during the take-off phase.

This indicator reflects the efficiency of energy transfer from the ground to the jump. 

The take-off angle is determined from the inclination of the center of mass (CM) motion vector at the moment of take-off.

This value directly influences the jump trajectory and the distance achieved. 

The take-off velocity is obtained by combining the horizontal and vertical components of the center of mass velocity at the moment of take-off.

This indicator summarizes the power of the jump impulse and allows comparison of effectiveness across different attempts. 

The jump height is calculated based on the vertical displacement of the center of mass (CM) relative to the ground.

In the LJT System, this estimation is adjusted using the athlete’s body scale (distance between the ankle and the shoulder) to obtain realistic measurements in meters. 

Knee angles are obtained by analyzing the 2D coordinates of the hip (H), knee (K), and ankle (A) detected by the pose estimation model.

This analysis allows for the evaluation of extension and flexion during take-off and landing — key parameters for injury prevention and technique optimization.