Enhancing soccer goalkeepers penalty dive kinematics with instructional video and laterality insights in field conditions

Author(s)

Monteiro, Rafael Luiz Martins ; dos Santos, Carlos Cesar Arruda ; Blauberger, Patrick ; Link, Daniel ; Russomanno, Tiago Guedes ; Tahara, Ariany Klein ; Chinaglia, Abel Goncalves ; Santiago, Paulo Roberto Pereira

• Document type: Journal article
• Source: SCIENTIFIC REPORTS; v. 14, n. 1, p. 11-pg., 2024-05-03.

Abstract

This study aimed to analyze the effect of laterality and instructional video on the soccer goalkeepers' dive kinematics in penalty. Eight goalkeepers from youth categories (U15, U17, U20) were randomly divided into control (CG) and video instruction groups (VG). The latter performed 20 penalty defense trials on the field with balls launched by a machine, ten before and after watching a video instruction to improve the diving kinematics. The CG only performed the dives. Three cameras recorded the collections. A markerless motion capture technique (OpenPose) was used for identification and tracking of joints and anatomical references on video. The pose data were used for 3D reconstruction. In the post-instruction situation, the VG presented differences in comparison to the CG in the: knee flexion/extension angle, time to reach peak resultant velocity, frontal step distance, and frontal departure angle, which generated greater acceleration during the dive. Non-dominant leg side dives had higher resultant velocity during 88.4 - 100% of the diving cycle, different knee flexion/extension angle, and higher values in the frontal step distance. The instructional video generated an acute change in the diving movement pattern of young goalkeepers when comparing the control and the video instruction group in the post condition. (AU)

• FAPESP's process: 21/15134-9 - Can cognitive functions predict athlete's overall effectiveness and contribution to the team in small-sided soccer games? A Machine Learning approach
• Grantee: Rafael Luiz Martins Monteiro
• Support Opportunities: Scholarships in Brazil - Master
• FAPESP's process: 19/17729-0 - Data-driven approaches for soccer match analysis: an e-Science perspective
• Grantee: Paulo Roberto Pereira Santiago
• Support Opportunities: Regular Research Grants
• FAPESP's process: 19/22262-3 - Large volume reconstruction: high precision system for position detection in sports
• Grantee: Paulo Roberto Pereira Santiago
• Support Opportunities: Organization Grants - Scientific Meeting
• FAPESP's process: 20/14845-6 - Kinematic analysis of the soccer goalkeeper's jump in penalty: effect of instructional video and laterality on performance
• Grantee: Rafael Luiz Martins Monteiro
• Support Opportunities: Scholarships in Brazil - Scientific Initiation