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OpenTrials
Completed

NCT Number: NCT04257591

Effects of Hamstrings Strengthening in Proffesional Athlets

Athelts that meet the inclusion criteria will be randomized into two groups. The experimental group will receive an 8-week (3 days per week) specificl protocol based on hamstring strengthening (isometric, concentric and excentric exercises), and the control group will not receive any additional exercise. The aim of the study is to investigate the changes in hip and knee muscle strength, in the extensibility of cuadriceps, hamstrings and hip abductors, in the physical functions and in the final marks.

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Key information

Conditions

Exercise Behavior Hamstring Injury Motor Activity

Age range

18 year–25 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Luis Ceballos Laita

Zaragoza, 50008, Spain

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Professional Athlet
  • 3 or more trainign days
  • Previous hamstring injury but without symptoms for 3 months or >30% difference between cuadriceps and hamstrings strength (considered as a risk for hamstring injury)

Exclusion criteria

  • Sistemic pathologies
  • Any other type of musculoskeletal injuries in lower limb or lumbar spine
  • To have a previous specific protocol
  • To skip more than 3 training days
  • General contraindications for physical activity

Treatment and study plan

hamstring strengthening

Other

A progressive and individualized hamstring strengthening protocol

Primary outcomes

  1. muscle strength

    Time frame: Baseline

    the examiners assess the muscle strength using a hand-held dynamometer (model 01165) for hip and knee muscles

  2. muscle strength

    Time frame: up to 8 weeks

    the examiners assess the muscle strength using a hand-held dynamometer (model 01165) for hip and knee muscles

  3. muscle extensibility

    Time frame: Baseline

    the examiners assess the extensibility of the hip flexors, abductors and extensor muscles

  4. muscle extensibility

    Time frame: up to 8 weeks

    the examiners assess the extensibility of the hip flexors, abductors and extensor muscles

Secondary outcomes

  1. Physical function

    Time frame: Baseline

    the examiners assess the physical function using vertical jump test

  2. Physical function

    Time frame: up to 8 weeks

    the examiners assess the physical function using vertical jump test

  3. Mark

    Time frame: Baseline

    the examiners assess the marks in competition

  4. Mark

    Time frame: up to 8 weeks

    the examiners assess the marks in competition

  5. Number of hamstring injuries

    Time frame: Baseline

    the examiners assess the number of hamstring injuries

  6. Number of hamstring injuries

    Time frame: up to 8 weeks

    the examiners assess the number of hamstring injuries

Sponsors and collaborators

Lead sponsor

Universidad de Zaragoza

Other

Registry information

Important dates

Study start
2019
Primary completion
2020
Study completion
2020
First posted
Feb 6, 2020
Registry last updated
May 26, 2020

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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