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BasketballNCT04285632

Plyometric Exercises in Ankle Range of Motion and Sural Triceps Strength in the Jump in Basketball Players

A study testing Plyometrics exercises in people with Basketball, run by Investigación en Hemofilia y Fisioterapia at 1 site in Spain.

Withdrawn

Withdrawn. The study stopped before anyone enrolled.

Official record
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Trial summary

The objective of plyometric exercises is to improve the range of mobility of the ankle, as well as decrease the stiffness of this joint and increase the strength in the sural triceps, by improving the explosive elastic force. Read more about this study

Who is it for?
Ages 18 to 40 years, women onlyHealthy volunteers can take part
Conditions the study is for
Basketball
What is being tested?
Plyometrics exercises
Could I receive a placebo?
No, everyone receives an active treatment
How many people
0 participants
Where
1 siteSpain
Study dates
2 Mar 2020to 10 Jun 2020
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 40 years
  • Women only
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • Basketball players
  • Female
  • Federated and professional
  • With an age range of 18 to 40 years
  • With more than 4 years of basketball sports

Who cannot join

  • Athletes who have been injured in the last two months
  • Who suffer an injury during the intervention process
  • Have not signed the informed consent document

Trial locations and contacts

1 site in 1 country.

Spain1 site
  • Universidad Europea de Madrid

    Madrid, Comunity of Madrid, 28670

Other trials in Spain

About this study

Official title: Efficacy of a Physiotherapy Intervention by Means of Plyometric Exercises in the Improvement of the Dorsal Ankle Flexion and the Strength of the Sural Triceps in the Jump in Basketball Players. A Randomized Clinical Study.

The objective of plyometric exercises is to improve the range of mobility of the ankle, as well as decrease the stiffness of this joint and increase the strength in the sural triceps, by improving the explosive elastic force.

The objective of the study is to assess the efficacy of plyometric exercises in increasing ankle mobility and increasing strength in the sural triceps, in professional female basketball players aged 18 to 40 years.

Read more

Randomized, simple blind clinical study. 48 basketball players will be randomized to the two study groups: experimental (they will perform the Counter Movement Jump (CMJ) and Drop Jump (DJ) exercises) and control (they will follow their usual routine). The intervention will last 4 weeks, with 2 weekly sessions of 15 minutes each. The study variables will be: range of dorsal flexion movement of the ankle (goniometry) and strength of the sural triceps (My Jump 2). A descriptive statistical analysis will be performed calculating the main statistical characteristics. The sample distribution will be analyzed with the Kolmogorov-Smirnov test. The changes after each evaluation will be analyzed with the t-student test for related samples and with the ANOVA test of repeated measures the intra and intersubject effect will be observed. Cohen's formula will be used to calculate the effect size.

It is intended to observe improvement in the range of dorsal ankle flexion movement and strength in the sural triceps.

Conditions
Basketball
Being tested
Plyometrics exercises
Keywords
Basketball, Plyometric Exercise, Range of motion, Randomized clinical trial, Strength Training

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Plyometrics exercisesOther

    Counter Movement Jump exercise. The subject will be placed in an upright standing position, with his hands on his hip. It will perform a rapid downward movement in which it will flex the hips and knees and, immediately, a rapid extension of the legs that will result in the maximum vertical jump. During the flight phase the subject will keep the legs straight. The landing will be done with both feet at the same time. The intervention will be carried out for 300 seconds, in 2 series of 30 jumps each and with 3 minutes of rest between series.

    Drop Jump exercise. The players will be placed on a step, standing and with their feet shoulder-width apart. They will drop forward, landing with both feet at the same time. Upon touching the ground they will perform a maximum vertical jump. The intervention will be carried out for 600 seconds, in 2 series of 25 jumps each, and with 3 minutes of rest between series.

Study groups in NCT04285632
Study groupRoleWhat they receive
Experimental groupExperimentalEach session will last 15 minutes, taking place for 2 days a week, over a period of 4 weeks. The intervention will take place at the beginning of each training session. Prior to training, the Counter Movement Jump and Drop Jump exercises will be performed
Receives: Other: Plyometrics exercises
Control groupNo interventionAthletes included in the control group will continue with their usual warm-up routine.

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Change from baseline range of motion in ankle dorsal flexion after treatment and at month

    An assessment will be made with a universal goniometer. The evaluation will be carried out according to the protocol indicated by Lang et al. The subject will be placed supine on the stretcher with the knee extended and the foot in a neutral position. The goniometer axis will be placed in the external maleolus, with the goniometer fixed arm following the fibula line, and the mobile arm following the direction of the fifth metatarsal. The unit of measure of this measuring instrument is the degree. A greater number of degrees indicates a greater dorsiflexion of the ankle.

    Measured: Screening visit, within the first seven days after treatment and after one month follow-up visit

Secondary outcomes (1)
  1. Change from baseline sural triceps strength after treatment and at month

    It will be carried out using the My Jump 2 application. With this test, the height of the jump and its strength will be measured. The subject will be placed in standing position, in front of the evaluator and the camera of the device by placing their hands on the hip. From the static standing position, perform the vertical jump and during the flight phase the subject will keep the legs stretched. The landing will be done with both feet at the same time. The unit of measure of this measuring instrument is the centimeter. A larger number of centimeters indicates greater strength of the lower limb.

    Measured: Screening visit, within the first seven days after treatment and after one month follow-up visit

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted26 Feb 2020
  2. Study start2 Mar 2020
  3. Primary completion30 May 2020
  4. Study completion10 Jun 2020

Why it stopped: COVID-19 Lockdown

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Prevention
Allocation
Randomised
Intervention model
Parallel groups
Masking
Single blind
Who is masked
Outcomes assessor
Enrolment
0 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04285632
Sponsor's protocol ID
PLIO
Status last verified
Sep 2021
First submitted
25 Feb 2020
Last updated
2 Sep 2021
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

A study testing Plyometrics exercises in people with Basketball, run by Investigación en Hemofilia y Fisioterapia at 1 site in Spain.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 5 inclusion and 3 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: withdrawn, as of the sponsor's last update on 2 Sep 2021. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Spain. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study was withdrawn before enrolling participants, so there are no results.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Change from baseline range of motion in ankle dorsal flexion after treatment and at month (time frame: Screening visit, within the first seven days after treatment and after one month follow-up visit). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 2 Sep 2021.

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