Tackle Technique and Changes in Playerload™ During a Simulated Tackle: An Exploratory Study.

Area of Science:

• Sports Science
• Biomechanics
• Rugby Union Performance Analysis

Background:

• Tackling is crucial in collision sports like rugby union, yet injury incidence is high.
• Player contact load is measurable via microtechnology, but its link to tackle technique is underexplored.

Purpose of the Study:

• To investigate the relationship between tackling technique proficiency and PlayerLoad™ during simulated tackles.
• To determine if PlayerLoad™ metrics differ across varying tackle skill levels.

Main Methods:

• Nineteen rugby union players performed 228 simulated tackles using a contact simulator.
• Tackles were video-recorded and players wore Catapult OptimEyeS5 devices to measure PlayerLoad™.
• Tackles were categorized into low (≤5 AU), medium (6-7 AU), and high (≥8 AU) scoring based on proficiency criteria.

Main Results:

• High-scoring tackles demonstrated significantly higher PlayerLoad™ at completion compared to lower-scoring tackles.
• The PlayerLoad™ trace was less variable in high-scoring tackles, indicating smoother force application.
• Increased PlayerLoad™ variability in lower-scoring tackles may stem from inadequate step shortening before impact, hindering movement control.

Conclusions:

• PlayerLoad™ metrics, particularly trace variability, correlate with tackle technique proficiency in rugby union.
• Integrating PlayerLoad™ data with subjective technique analysis can provide valuable insights for optimizing tackle training.
• This approach aids coaches in understanding the physical-technical interplay to enhance player performance and safety.