A Comparison of Two Different Wrist Immobilization Methods

Not Applicable

• Conditions: Work-Related Condition
• Interventions: Other: Wrist Splint; Other: Rigid Taping

• Registration Number: NCT04213352
• Lead Sponsor: Trakya University

Brief Summary

The aim of this study is to examine the effect of the splint and rigid taping on the muscle activation of the upper trapezius muscle during computer typing tasks in office workers.

The study will be conducted on 10 healthy office workers. The study subjects will be asked to type on a computer for 5 minutes (1) without splint or taping, (2) with a splint and (3) with rigid taping which limits the wrist flexion at the dominant side. The upper trapezius muscle activation will be recorded by surface EMG during the task. The mean values will be normalized according to Maximum Voluntary Isometric Contraction (MVIC) and %MVIC values.

Detailed Description

Not available

Study Timeline

• Status Verified: 2019-12
• Study First Submitted: 2019-12-23
• Study First Submitted QC: 2019-12-27
• Last Update Submitted: 2019-12-27
• Study First Posted: 2019-12-30
• Last Update Posted: 2019-12-30
• Study Start: 2020-01-10
• Primary Completion: 2020-02-01
• Study Completion: 2020-02-15

Recruitment & Eligibility

• Status: UNKNOWN
• Sex: All
• Target Recruitment: 10

Inclusion Criteria

• Being an office worker between 20-35 years of age
• Using a computer for at least 4 hours a day
• Working full time for at least 1 year without any upper extremity pathology

Exclusion Criteria

• Having a body mass index of 30 kg / m2 or more on the day of evaluation
• Using muscle relaxants 72 hours before the evaluation
• Exercising within the last 48 hours

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
Splint Group	Wrist Splint	The subjects will be asked to type on a computer for 5 minutes with a splint. The upper trapezius muscle activation will be recorded by surface EMG during the task. The mean values will be normalized according to Maximum Voluntary Isometric Contraction (MVIC) and %MVIC values.
Rigid Taping Group	Rigid Taping	The subjects will be asked to type on a computer for 5 minutes with rigid taping which limits the wrist flexion at the dominant side. The upper trapezius muscle activation will be recorded by surface EMG during the task. The mean values will be normalized according to Maximum Voluntary Isometric Contraction (MVIC) and %MVIC values.

Primary Outcome Measures

Name	Time	Method
Measurement of Muscle Activation for Control Group	It will be recorded at baseline for MVIC and 1 minute after baseline while performing the 5-minute typing task on computer for %MVIC	Surface Electromyography (sEMG) device will be used for measurement of muscle activation. The electrodes going to be placed according to the SENIAM criteria(1). First, the MVIC will be performed by each individual in the manual muscle testing position. 6 seconds MVIC will be measured with 3 repetitions and a 3-minute rest period going to be given. The highest value of the three measurements will be recorded as MVIC. The computer task consists of typing 300-word text for 5 minutes. Individuals will be instructed about the typing task and to be seated comfortably and as close to screen as possible. The 5-minute typing task will be performed without orthosis or taping. The upper trapezius muscle activation will be recorded with the sEMG. The number of words participants wrote will be noted. To prevent muscle fatigue, a resting period of 5 minutes will be given. The mean values (mV) during the writing task with sEMG will be normalized according to MVIC and %MVIC values will be determined.
Measurement of Muscle Activation for Splint Group	It will be recorded at baseline for MVIC and 1 minute after baseline while performing the 5-minute typing task on computer for %MVIC	Surface Electromyography (sEMG) device will be used for measurement of muscle activation. The electrodes going to be placed according to the SENIAM criteria(1). First, the MVIC will be performed by each individual in the manual muscle testing position. 6 seconds MVIC will be measured with 3 repetitions and a 3-minute rest period going to be given. The highest value of the three measurements will be recorded as MVIC. The computer task consists of typing 300-word text for 5 minutes. Individuals will be instructed about the typing task and to be seated comfortably and as close to screen as possible. The 5-minute typing task will be performed with orthosis. The upper trapezius muscle activation will be recorded with the sEMG. The number of words participants wrote will be noted. To prevent muscle fatigue, a resting period of 5 minutes will be given. The mean values (mV) during the writing task with sEMG will be normalized according to MVIC and %MVIC values will be determined.
Measurement of Muscle Activation for Rigid Taping Group	It will be recorded at baseline for MVIC and 10 minutes after baseline while performing the 5-minute typing task on computer for %MVIC	Surface Electromyography (sEMG) device will be used for measurement of muscle activation. The electrodes going to be placed according to the SENIAM criteria(1). First, the MVIC will be performed by each individual in the manual muscle testing position. 6 seconds MVIC will be measured with 3 repetitions and a 3-minute rest period going to be given. The highest value of the three measurements will be recorded as MVIC. The computer task consists of typing 300-word text for 5 minutes. Individuals will be instructed about the typing task and to be seated comfortably and as close to screen as possible. The 5-minute typing task will be performed with rigid taping. The upper trapezius muscle activation will be recorded with the sEMG. The number of words participants wrote will be noted. To prevent muscle fatigue, a resting period of 5 minutes will be given. The mean values (mV) during the writing task with sEMG will be normalized according to MVIC and %MVIC values will be determined.