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

This study is currently recruiting participants. (see Contacts and Locations)
Verified March 2013 by Universidade Federal de Sao Carlos
Sponsor:
Information provided by (Responsible Party):
Gisele Garcia Zanca, Universidade Federal de Sao Carlos
ClinicalTrials.gov Identifier:
NCT01764620
First received: December 18, 2012
Last updated: March 30, 2013
Last verified: March 2013
  Purpose

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.


Condition Intervention
Shoulder Injury
Muscle Fatigue
Other: Elastic taping applied with tension
Other: Elastic taping applied without tension
Other: Fatigue protocol

Study Type: Interventional
Study Design: Allocation: Randomized
Endpoint Classification: Efficacy Study
Intervention Model: Crossover Assignment
Masking: Single Blind (Subject)
Primary Purpose: Prevention
Official Title: Effects of Muscle Fatigue and Scapular Taping on Shoulder Kinematics of Overhead Athletes

Resource links provided by NLM:


Further study details as provided by Universidade Federal de Sao Carlos:

Primary Outcome Measures:
  • 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. ] [ Designated as safety issue: No ]
    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).


Secondary Outcome Measures:
  • 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. ] [ Designated as safety issue: No ]
    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).


Estimated Enrollment: 20
Study Start Date: May 2012
Estimated Study Completion Date: July 2014
Estimated Primary Completion Date: December 2013 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
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: Elastic taping applied with tension Other: Fatigue protocol
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: Elastic taping applied without tension Other: Fatigue protocol

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.

  Eligibility

Ages Eligible for Study:   18 Years to 30 Years
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   Yes
Criteria

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.
  Contacts and Locations
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, see Learn About Clinical Studies.

Please refer to this study by its ClinicalTrials.gov identifier: NCT01764620

Contacts
Contact: Gisele G Zanca, MSc 55 16 33519579 gisele_gz@yahoo.com.br

Locations
Brazil
Universidade Federal de São Carlos Recruiting
São Carlos, São Paulo, Brazil, 13.565-905
Sponsors and Collaborators
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
  More Information

No publications provided

Responsible Party: Gisele Garcia Zanca, MSc, Universidade Federal de Sao Carlos
ClinicalTrials.gov Identifier: NCT01764620     History of Changes
Other Study ID Numbers: 040/2011
Study First Received: December 18, 2012
Last Updated: March 30, 2013
Health Authority: Brazil: National Committee of Ethics in Research

Keywords provided by Universidade Federal de Sao Carlos:
shoulder
muscle fatigue
kinematics
athletes

Additional relevant MeSH terms:
Fatigue
Signs and Symptoms

ClinicalTrials.gov processed this record on November 20, 2014