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Neurodynamics to Improve Jump Functionality in Trampoline Jump Gymnasts

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT04289857
Recruitment Status : Withdrawn (COVID-19 Lockdown)
First Posted : February 28, 2020
Last Update Posted : September 2, 2021
Information provided by (Responsible Party):
Investigación en Hemofilia y Fisioterapia

Brief Summary:

The goal of neurodynamics is to restore homeostasis of peripheral nerves. In the current context there is varied evidence that links neurodynamics with clinical pain treatments or different pathologies, but little evidence regarding changes in the functionality of athletes, which could be related to improvements in performance.

The main objective of the study is to determine if the neurodynamic technique is effective in increasing the range of hip mobility and in increasing the jump with counter movement.

Randomized, simple blind clinical study. 15 trampoline jumping gymnasts will be randomized to the two study groups: experimental (active sciatic neurodynamics techniques) and control (without intervention). The intervention will last 4 weeks, with 3 weekly sessions of approximately 5 minutes each. The study variables will be the range of hip flexion movement (goniometry) and the countermove jump (My Jump® application). A descriptive statistical analysis will be performed calculating the main statistical characteristics. The sample distribution will be calculated using a Shapiro-Wills analysis. The changes after each evaluation will be analyzed with the t-student test and with an ANOVA of repeated measures the intra and intersubject effect will be observed. The effect size will be calculated using Cohen's formula.

It is intended to observe improvement in the range of hip flexion movement and in the jump with countermovement.

Condition or disease Intervention/treatment Phase
Athlete Foot Other: Neurodynamic training Not Applicable

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Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 0 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Single (Outcomes Assessor)
Primary Purpose: Prevention
Official Title: Efficacy of a Physiotherapy Intervention by Means of Neurodynamic Technique to Improve the Functionality of the Jump in Trampoline Jump Gymnasts. A Randomized Clinical Study.
Actual Study Start Date : March 2, 2020
Actual Primary Completion Date : May 20, 2020
Actual Study Completion Date : June 10, 2020

Arm Intervention/treatment
Experimental: Experimental group
Each session will last a maximum of 5 minutes, taking place for 3 days a week, over a period of 4 weeks. The intervention will be performed at the start of training (before warm-up).
Other: Neurodynamic training
Starting from a sitting position on a stretcher, with dorsolumbar flexion, it is required to maintain that posture throughout the exercise. Sliding with the straight leg sitting consists of performing alternate movements. First, knee extension and dorsal ankle flexion will be performed, increasing neural tension, combined with cervical extension (to decrease neural tension) in the first instance. Subsequently, knee flexion and plantar ankle flexion (decreasing neural tension) combined with cervical flexion (increasing neural tension) will be performed. The dosage of the technique will be: two seconds for each movement, with 10 repetitions of each one. All sessions will be led by one of the group's researchers.

No Intervention: Control group
Athletes included in the control group will not perform any intervention, continuing with their usual routine.

Primary Outcome Measures :
  1. Change from baseline hip flexion after treatment and at month [ Time Frame: Screening visit, within the first seven days after treatment and after one month follow-up visit ]
    Using a universal goniometer. The subject will be placed supine on a stretcher, identifying the lateral condyle of the femur with a marker, as well as the head of the fibula and the fibular malleolus. The goniometer axis will be placed on the projection of the greater trochanter of the femur. One of the arms of the goniometer arms will be placed parallel to the table (checked with a level). The athlete will be asked for active hip flexion by keeping the knee and ankle in the extended position, being careful not to bend the knee, or swing the pelvis backwards and without turning the hip to external rotation. The other arm of the goniometer will be placed in the direction of the line between the head of the fibula and the fibular malleolus. The unit of measure is the degree, a numerical value whose normal range is 0º-120º

Secondary Outcome Measures :
  1. Change from baseline jump height with counter movement after treatment and at month [ Time Frame: Screening visit, within the first seven days after treatment and after one month follow-up visit ]
    It will be done with the My Jump application. The athlete will be placed in standing position, with the feet separated at shoulder height and will be asked to jump as high as possible with a rapid movement in countermovement. The hands will remain on the hips during the execution of the jump. The depth of the counter movement will be self-selected and gymnasts will be asked to land near the initial jump zone. They will be instructed verbally to jump as high as possible without specifying the angle of flexion of the knee during the countermovement phase. With the My Jump application, the athlete will be recorded performing the jump with counter movement and the application will determine the height of the jump. The unit of measure is centimeters, where the greater the distance, the greater the height.

Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.

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Ages Eligible for Study:   18 Years to 30 Years   (Adult)
Sexes Eligible for Study:   Male
Accepts Healthy Volunteers:   Yes

Inclusion Criteria:

  • Trampoline jumping gymnasts
  • Male
  • Aged between 18 and 30 years
  • Who train at least 2 days a week
  • Federated in the Madrid Gymnastics Federation

Exclusion Criteria:

  • Subjects who have a medical diagnosis of musculoskeletal pathology at the time of beginning the study
  • Neural pathology in the last 6 months
  • With cognitive deficit that prevents them from understanding physical tests and questionnaires
  • Have not signed the informed consent

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT04289857

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Universidad Europea de Madrid
Madrid, Comunity Of Madrid, Spain, 28670
Sponsors and Collaborators
Investigación en Hemofilia y Fisioterapia
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Responsible Party: Investigación en Hemofilia y Fisioterapia Identifier: NCT04289857    
Other Study ID Numbers: Neuro
First Posted: February 28, 2020    Key Record Dates
Last Update Posted: September 2, 2021
Last Verified: September 2021

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Studies a U.S. FDA-regulated Drug Product: No
Studies a U.S. FDA-regulated Device Product: No
Keywords provided by Investigación en Hemofilia y Fisioterapia:
Gymnastics trampoline
Range of motion
Randomized clinical trial
Additional relevant MeSH terms:
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Tinea Pedis
Bacterial Infections and Mycoses
Skin Diseases, Infectious
Foot Dermatoses
Foot Diseases
Skin Diseases
Skin Manifestations