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Related Experiment Video

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Sit-to-stand-and-walk from 120% Knee Height: A Novel Approach to Assess Dynamic Postural Control Independent of Lead-limb
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Kinematic changes during learning the longswing on high bar.

Genevieve Williams1, Gareth Irwin, David G Kerwin

  • 1Cardiff School of Sport, University of Wales Institute, Cardiff, UK. gewilliams@uwic.ac.uk

Sports Biomechanics
|April 24, 2012
PubMed
Summary
This summary is machine-generated.

This study tracked technique changes in learning the looped bar longswing (LLS). Hip functional phase timing differentiated skill acquisition levels, suggesting its utility in skill learning analysis.

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Area of Science:

  • Sports Science
  • Motor Learning
  • Biomechanics

Background:

  • Learning complex sports skills requires understanding technique progression.
  • The looped bar longswing (LLS) is a complex gymnastic skill.
  • Identifying learning patterns is crucial for effective coaching.

Purpose of the Study:

  • To investigate technique modifications during the learning of the looped bar longswing (LLS).
  • To analyze kinematic changes associated with skill acquisition in novice gymnasts.
  • To determine if specific movement phases can differentiate skill levels.

Main Methods:

  • Thirteen novice male participants underwent an 8-week training program.
  • Kinematic data were collected weekly using a CODA motion analysis system.
  • Analysis focused on swing amplitude and hip/shoulder functional phase (FP) timing.

Main Results:

  • All participants improved swing amplitude significantly (p < 0.05).
  • Hip FP initiation timing varied across skill acquisition groups (G1: later, G2: earlier, G3: no change).
  • Shoulder extension patterns differed from elite gymnast benchmarks.

Conclusions:

  • Hip functional phase timing serves as a key indicator for distinguishing skill acquisition levels in the LLS.
  • The findings support the use of single-subject designs for analyzing technique changes in motor learning.
  • Understanding kinematic differences can inform targeted training interventions for gymnasts.