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Isolated Joint Block Progression Training Improves Leaping Performance in Dancers.

Paige E Rice1,2,3, Kiisa Nishikawa3, Sophia Nimphius1

  • 1School of Medical and Health Sciences, Edith Cowan University, Joondalup, WA, Australia.

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Summary
This summary is machine-generated.

Ankle-specific training significantly improved dancers' leaping ability, power, and strength. This 12-week program enhanced maximal voluntary isometric plantar flexion strength and Achilles tendon stiffness without affecting aesthetic measures.

Keywords:
anklejoint kineticsmusclepowerstrengthtendon

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Area of Science:

  • Sports Science
  • Biomechanics
  • Dance Science

Background:

  • Dancers require powerful and efficient lower limb movements for optimal performance.
  • Ankle strength and stiffness are critical determinants of leaping ability in dancers.
  • Targeted training interventions may enhance dance-specific performance metrics.

Purpose of the Study:

  • To evaluate the impact of a 12-week ankle-specific block progression training program on the leaping performance of dancers.
  • To assess changes in maximal voluntary isometric plantar flexion (MVIP) strength and Achilles tendon (AT) stiffness.
  • To determine the effects on joint kinetics, kinematics, and aesthetic measures during the saut de chat leap.

Main Methods:

  • A 12-week training program involving isometric, dynamic constant external resistance, accentuated eccentric loading, and plyometric exercises was implemented.
  • Dancers underwent assessments of MVIP strength and AT stiffness using isometric contractions and ultrasound.
  • Leaping performance was analyzed using 3-D motion capture and force platforms to measure leap height, peak power, and joint dynamics.

Main Results:

  • The training group demonstrated significant increases in ankle peak power (59.8%), braking ankle stiffness (69.6%), center of mass peak power (11.4%), and leap height (12.1%).
  • Significant improvements were observed in MVIP strength at 10° (17.0%) and 0° (12.2%), alongside a 29.6% increase in AT stiffness.
  • No significant changes were found in aesthetic leaping measures, such as peak split angle and trunk angles.

Conclusions:

  • Ankle-specific block progression training effectively enhances saut de chat leaping performance, peak power, and ankle-joint kinetics in dancers.
  • The training program positively influences maximal strength and Achilles tendon stiffness.
  • These adaptations suggest that targeted ankle training can improve explosive power and efficiency in dancers without compromising aesthetic qualities.