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Muscle Imbalances: Testing and Training Functional Eccentric Hamstring Strength in Athletic Populations
07:30

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Published on: May 1, 2018

Conceptual framework for strengthening exercises to prevent hamstring strains.

Kenny Guex1, Grégoire P Millet

  • 1Department of Physiotherapy, School of Health Sciences, University of Applied Sciences Western Switzerland, Av. de Beaumont 21, 1011, Lausanne, Switzerland, kenny.guex@hesav.ch.

Sports Medicine (Auckland, N.Z.)
|September 25, 2013
PubMed
Summary
This summary is machine-generated.

This study proposes a six-parameter framework for hamstring strength training to prevent strains. It emphasizes high-load eccentric exercises at specific velocities and ranges of motion for better athletic performance.

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Area of Science:

  • Sports Medicine
  • Biomechanics
  • Exercise Physiology

Background:

  • Hamstring strains are common in high-speed running sports, often occurring during the terminal swing phase.
  • This phase involves active lengthening of the hamstrings at maximal muscle length, posing a high risk.
  • Current prevention focuses on eccentric exercises, but other training parameters are crucial.

Purpose of the Study:

  • To present a conceptual framework for hamstring strength exercises to prevent strains.
  • The framework integrates six key parameters: contraction type, load, range of motion, angular velocity, uni-/bilateral exercises, and kinetic chain.
  • To optimize hamstring training based on sprinting biomechanics for injury prevention.

Main Methods:

  • The study proposes a framework based on biomechanical analysis of sprinting.
  • It recommends specific parameters for hamstring strength exercises, including contraction type, load, and velocity.
  • The framework considers exercise execution like range of motion and kinetic chain type.

Main Results:

  • High-load eccentric contractions are proposed, performed at slow to moderate angular velocity.
  • Exercises should focus on knee joint movement with the hip in deep flexion to increase hamstring stretch.
  • Unilateral open kinetic chain exercises are recommended for functional relevance.

Conclusions:

  • This framework aims to better prepare athletes for the demands of sprinting, improving their ability to control knee extension.
  • The proposed training strategy may reduce the risk of hamstring overstretch during high-speed running.
  • Integrating these parameters into strength training can enhance hamstring injury prevention strategies.