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

Muscle Fatigue Clinical Trial

Official title:

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

Clinical Trial Details — Status: Recruiting

Administrative data

• NCT number: NCT01764620
• Other study ID #: 040/2011
• Status: Recruiting
• Phase: N/A
• First received: December 18, 2012
• Last updated: March 30, 2013
• Start date: May 2012
• Est. completion date: July 2014

Study information

• Verified date: March 2013
• Source: Universidade Federal de Sao Carlos
• Contact: Gisele G Zanca, MSc
• Phone: 55 16 33519579
• Email: gisele_gz[@]yahoo.com.br
• Is FDA regulated: No
• Health authority: Brazil: National Committee of Ethics in Research
• Study type: Interventional

Clinical Trial Summary

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.

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.

Recruitment information / eligibility

• Status: Recruiting
• Enrollment: 20
• Est. completion date: July 2014
• Est. primary completion date: December 2013
• Accepts healthy volunteers: Accepts Healthy Volunteers
• Gender: Both
• Age group: 18 Years to 30 Years

Eligibility

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 Design

Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Crossover Assignment, Masking: Single Blind (Subject), Primary Purpose: Prevention

Related Conditions & MeSH terms

• Fatigue
• Muscle Fatigue
• Shoulder Injury

Intervention

Other:
• Elastic taping applied with tension

• Elastic taping applied without tension

• Fatigue protocol

Locations

Country	Name	City	State
Brazil	Universidade Federal de São Carlos	São Carlos	São Paulo

Sponsors (1)

Lead Sponsor	Collaborator
Universidade Federal de Sao Carlos

Country where clinical trial is conducted

Brazil, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Changes in scapular internal/external rotations, upward/downward rotations and anterior/posterior tilt movements	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.	No
Secondary	Changes in the median frequency of electromyographic signal from upper and lower trapezius and serratus anterior muscles.	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.	No