Completed

NCT Number: NCT04254055

Plyometric, Proprioceptive and Strength Exercises in Rugby Players.

Introduction. Shoulder injury is the pathology that causes the longest downtime in rugby players, representing 66% of upper limb injuries in this discipline. The lack of strength, and instability are factors that predispose the athlete to suffer this type of dysfunction. The intervention of the study consists of a training program that counteract these dysfunctions.

Aim. Assess the effectiveness of a program using plyometric, proprioceptive and strength exercises on 18-45-year-old rugby players to improve strength and stability.

Study design. Clinical randomized, prospective, single-blind and trackable. Methods. The subjects included in two study groups, experimental and control, will be attributed a random order. The treatment will last 4 weeks, with 2 weekly sessions, of approximately 25 minutes each. The study variables will be strength, stability and functionality. A descriptive statistical analysis will be carried out calculating the main statistical characteristics. Through of a Kolmogorov analysis the normality of the sample will be assessed. A t-Student test for paired samples will be performed for the difference between the means of the dependent and independent variables. An analysis if variance (ANOVA) for repeated measures will be used to compare the means and checked to what extent the intra-subjects factors influence the dependent variables.

Expected results. Improved shoulder strength, stability and functionality for the subjects on which the study is carried out.

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Key information

Conditions

Overhead Athletes

Age range

18 year–45 year

Sex eligibility

Male

Study type

Interventional

Phase

Not applicable

Primary location

European University of Madrid

Madrid, Spain

Who can participate

Healthy volunteers accepted: Yes

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

Inclusion criteria

Federated rugby players
Male
18 to 45 years old
Currently participating in regional competitions

Exclusion criteria

Being treated with anti-inflammatory drugs
Having suffered an upper limb injury in the month prior to the intervention
Have undergone surgery for any shoulder pathology during the previous 12 months
Who have suffered or suffer from a serious and / or metabolic disease
That they have not signed the informed consent

Treatment and study plan

Exercises

Other

Those subjects included in the experimental group will receive an intervention through a program with plyometric, proprioceptive and strength exercises. The subjects included in the control group will not receive any intervention.

Other names: Experimental group

Primary outcomes

Change from baseline strength after treatment and at 1 month

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

The strength assessment will be carried out with a dynamometer. The subject will stand up and the examiner will indicate when the movement should begin. The dynamometer will be positioned to measure the strength of the shoulder abductors and rotators in the position of 90º of abduction and 90º of external rotation. The unit of measure is the Newton

Secondary outcomes

Change from baseline stability after treatment and at 1 month

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

It will be assessed with the Closed Kinetic Chain Upper Extremity Stability Test. The initial position of the test is a push-up position with the upper extremities perpendicular to the ground. We will use two strips of 3.80 cm tape stuck on the floor and separated 91.44cm apart. The subjects will carry one of the hands until they touch the other strip of tape and return to the initial position. The touches will be counted every time one of the tape strips is touched in a total time of 15 seconds. Each subject will perform a warm-up, followed by 3 attempts with a break between attempts, of 45 seconds, averaging the 3 data obtained.
Change from baseline functionality after treatment and at 1 month

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

The assessment will be carried out with the Simple Shoulder Test. This test is a questionnaire of 12 questions, with two answer options: yes (when the subject is able to perform the task) and no (when he is not able to do it). The results obtained have a scoring range from 0 to 12, with 0 being the lowest functionality and 12 being the highest.

Sponsors and collaborators

Lead sponsor

Investigación en Hemofilia y Fisioterapia

Network

Registry information

Official study title

Effectiveness of a Training Program Through Plyometric, Proprioceptive and Strength Exercises in Order to Observe an Improvement of the Strength, Stability and Functional Stability of the Shoulder in Rugby Players

Important dates

Study start: 2020
Primary completion: 2020
Study completion: 2020
First posted: Feb 5, 2020
Registry last updated: Sep 2, 2021

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.