Effects of Hamstrings Strengthening in Proffesional Athlets

May 22, 2020 updated by: Luis Ceballos Laita, Universidad de Zaragoza
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.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Actual)

30

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Spain
      • Zaragoza, Spain, 50008
        • Luis Ceballos Laita

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years to 25 years (Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

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

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Single

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: hamstring strengthening
8-week protocol (3 days per week) based on isometric, concentric and excentric exercisesof hamstrings
Other: hamstring strengthening
A progressive and individualized hamstring strengthening protocol
No Intervention: Control
No intervention added to regular training.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
muscle strength
Time Frame: Baseline
the examiners assess the muscle strength using a hand-held dynamometer (model 01165) for hip and knee muscles
Baseline
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
up to 8 weeks
muscle extensibility
Time Frame: Baseline
the examiners assess the extensibility of the hip flexors, abductors and extensor muscles
Baseline
muscle extensibility
Time Frame: up to 8 weeks
the examiners assess the extensibility of the hip flexors, abductors and extensor muscles
up to 8 weeks

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Physical function
Time Frame: Baseline
the examiners assess the physical function using vertical jump test
Baseline
Physical function
Time Frame: up to 8 weeks
the examiners assess the physical function using vertical jump test
up to 8 weeks
Mark
Time Frame: Baseline
the examiners assess the marks in competition
Baseline
Mark
Time Frame: up to 8 weeks
the examiners assess the marks in competition
up to 8 weeks
Number of hamstring injuries
Time Frame: Baseline
the examiners assess the number of hamstring injuries
Baseline
Number of hamstring injuries
Time Frame: up to 8 weeks
the examiners assess the number of hamstring injuries
up to 8 weeks

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Universidad de Zaragoza

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

December 2, 2019

Primary Completion (Actual)

March 10, 2020

Study Completion (Actual)

March 10, 2020

Study Registration Dates

First Submitted

January 31, 2020

First Submitted That Met QC Criteria

February 3, 2020

First Posted (Actual)

February 6, 2020

Study Record Updates

Last Update Posted (Actual)

May 26, 2020

Last Update Submitted That Met QC Criteria

May 22, 2020

Last Verified

May 1, 2020

More Information

Terms related to this study

Keywords

Other Study ID Numbers

  • PI 20- 1589

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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