Effects of Muscle Fatigue and a Taping Technique on Shoulder Motion of Athletes

March 30, 2013 updated by: Gisele Garcia Zanca, Universidade Federal de Sao Carlos

Effects of Muscle Fatigue and Scapular Taping on Shoulder Kinematics of Overhead Athletes

The purpose of this study is to investigate the effects of muscle fatigue in the scapular kinematics of overhead athletes with and without using a kinesio taping technique for facilitating lower trapezius function. The hypothesis is that the taping technique could compensate for the negative effects caused by muscle fatigue in the scapular kinematics of healthy overhead athletes.

Study Overview

Status

Unknown

Conditions

Intervention / Treatment

Detailed Description

Muscle fatigue is a potential cause of shoulder injuries in overhead athletes. Considering the important role of lower trapezius for functional scapular stability, it is suggested that a kinesio taping technique for facilitating its function could compensate for the negative effects of muscle fatigue on scapular kinematics. This is a randomized crossover study and all included athletes will be evaluated in three sessions, with a period of seven days between them: Control (fatigue protocol, without taping), Kinesio Taping (fatigue protocol with elastic taping applied with tension) and Sham (fatigue protocol with taping applied without tension). During each session, tridimensional kinematics of scapula and humerus and electromyography of serratus anterior and trapezius (upper and lower portions) muscles of dominant shoulder will be evaluated, during scaption and throwing movements, immediately before and immediately after the fatigue protocol.The changes in scapular movements (before versus after the fatigue protocol) will be compared among the sessions.

Study Type

Interventional

Enrollment (Anticipated)

20

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 Contact

Study Locations

  • Brazil
    • São Paulo
      • São Carlos, São Paulo, Brazil, 13.565-905
        • Recruiting
        • Universidade Federal de Sao Carlos

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 30 years (Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Overhead athletes regularly training;
  • No report of shoulder pain in the last 6 months.

Exclusion criteria:

  • Previous shoulder or neck surgery;
  • Previous shoulder dislocation.

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: Prevention
  • Allocation: Randomized
  • Interventional Model: Crossover Assignment
  • Masking: Single

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Other: Control
In this session, the athletes will be evaluated before and after the fatigue protocol, without any taping application.
Other: Fatigue protocol
Experimental: Kinesio taping
A kinesio taping technique for facilitating lower trapezius muscle function will be applied just before fatigue protocol and removed after in the end of the evaluation session.
Other: Fatigue protocol
Other: Elastic taping applied with tension
Sham Comparator: Sham
A similar technique, using the same tape, will be applied but without any tension (tension is considered to be the therapeutic effect). The tape will be applied just before the fatigue protocol and removed in the end of the session.
Other: Fatigue protocol
Other: Elastic taping applied without tension

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Changes in scapular internal/external rotations, upward/downward rotations and anterior/posterior tilt movements
Time Frame: An average of 3 minutes before and an average of 3 minutes after the fatigue protocol, in each of the 3 evaluation sessions.
Scapular 3D kinematics will be measured during arm elevation and throwing movements, in two moments (an average of 3 minutes before and an average of 3 minutes after the fatigue protocol) in each one of the 3 sessions. The evaluation session will have and interval of 7 days between them, and in each one the athletes will perform the fatigue protocol using either a kinesio taping application, or a sham application or without using any taping, in random order. The changes in each session (before and after fatigue) will be compared among the sessions (without taping, with kinesio taping application and sham application).
An average of 3 minutes before and an average of 3 minutes after the fatigue protocol, in each of the 3 evaluation sessions.

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Changes in the median frequency of electromyographic signal from upper and lower trapezius and serratus anterior muscles.
Time Frame: An average of 3 minutes before and an average of 3 minutes after the fatigue protocol, in each of the 3 evaluation sessions.
Electromyographic median frequency will be measured from upper and lower trapezius and serratus anterior muscles in order to determine muscle fatigue development and if the changes depending on the intervention used. These assessments will be performed in two moments (an average of 3 minutes before and an average of 3 minutes after the fatigue protocol) in each one of the 3 sessions(with an interval of 7 days between them). In each session the athletes will perform the fatigue protocol using either a kinesio taping application, or a sham application or without using any taping, in random order.The changes in each session (before and after fatigue) will be compared among the sessions (without taping, with kinesio taping application and sham).
An average of 3 minutes before and an average of 3 minutes after the fatigue protocol, in each of the 3 evaluation sessions.

Collaborators and Investigators

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

Sponsor

Universidade Federal de Sao Carlos

Investigators

  • Principal Investigator: Gisele G Zanca, MSc, Universidade Federal de Sao Carlos
  • Study Director: Stela M Mattiello, PhD, Universidade Federal de Sao Carlos

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

May 1, 2012

Primary Completion (Anticipated)

December 1, 2013

Study Completion (Anticipated)

July 1, 2014

Study Registration Dates

First Submitted

December 18, 2012

First Submitted That Met QC Criteria

January 7, 2013

First Posted (Estimate)

January 9, 2013

Study Record Updates

Last Update Posted (Estimate)

April 2, 2013

Last Update Submitted That Met QC Criteria

March 30, 2013

Last Verified

March 1, 2013

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 040/2011

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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