throwmodellen

Throwmodellen is a biomechanical model used in sports science to study and quantify throwing actions. It seeks to describe how body segments, joints, and forces interact to produce a thrown object’s velocity and trajectory. The model typically divides a throw into phases and links kinematic data to performance outcomes.

Structure and variables: The model commonly divides a throw into phases: preparation, acceleration, release, and follow-through. It focuses on variables such as release speed, release angle, shoulder and hip rotation, trunk tilt, arm angular velocity, ground reaction forces, and moments at the joints. Data are collected using video analysis, motion capture systems, and force plates, and may be integrated with equations of projectile motion and biomechanics.

Applications: Used by coaches, therapists, and researchers to assess technique, guide training interventions, optimize performance, and reduce injury risk. It is applied in track and field events like javelin and discus, as well as ball sports such as handball, baseball, and throwing events. The model can support individualized technique tuning and progression tracking.

Limitations: As a simplification of complex motor behavior, results depend on measurement accuracy and model assumptions. There is substantial individual variation in technique that the model may not capture completely. It should be used alongside other assessments, and standardized protocols are important for comparability across studies and athletes.