Resistance Exercise to Improve Fatigue in Workplace (REW)

Study Overview
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Brief Summary
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Studies show that exercise resistance in workplace can reduce the symptoms of induced labor, however, the effectiveness of such programs depends on the characteristics of the training fatigue. Thus, it is expected that this study the intervention group with training heavy using progressive resistance exercise protocol will be better in reducing fatigue when compare with light training group.

Detailed Description
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Background: This study is randomized clinical trial with double-blinded. The aim is evaluate the effectiveness the training heavy with resistance exercise program in the muscle fatigue control. Methods: This is a randomized controlled trial by cluster, in which workers who participate in the intervention group will perform resistance exercise protocols; and workers in the comparative group held only stretching exercises and light resistance training with elastic bands. Expected results: strong evidence that fatigue reducing after ten weeks in workers and improve in others outcomes. Not found in literature studies in occupational evaluating this aspect of training.

Official Title
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Effectiveness of a Resistance Training Program in the Workplace to Muscle Fatigue Control in Industrial Workers: Cluster Randomized Controlled Trial.

Conditions
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Fatigue, Musculoskeletal Diseases

Intervention / Treatment
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* Other: Compensatory Workplace Exercise (CWE) - Comparative Group
* Other: Individual Resistance Exercise (IRE) - Intervention Group


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: sign informed consent Exclusion Criteria: restriction by the medical department.

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 65 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Prevention
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Active Comparator: Compensatory Workplace Exercise (CWE)<br>Comparative Group will receive a light training protocol including warming up, stretching and resisted exercise using elastic bands. | Other: Compensatory Workplace Exercise (CWE) - Comparative Group<br>* The comparative group will receive warming up and stretching and light resisted exercise with elastic bands. The exercise will realize three times per week, 20 minutes for day in total 60 minutes per week. With warming up for 5 minutes and 15 minutes of the specific training . The exercise will realize in 3 series with 10 repetitions and rest 30 seconds between series.<br>|
| Experimental: Individual Resistance Exercise (IRE)<br>Intervention group will receive training protocol including warming up, stretching a specific resistance training with increase progressive load. | Other: Individual Resistance Exercise (IRE) - Intervention Group<br>* Intervention group will receive warming up and stretching, and a specific resistance training with increase progress load. The exercise will realize three times per week, 20 minutes for day in total 60 minutes per week. With warming up and stretching for 5 minutes and 15 minutes of the specific training. The exercise will realize in 3 series with 10 repetitions and rest 30 seconds between series.<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Need for Recovery | Psychosocial risk factors and stress, resulting in work-induced fatigue, will be obtained by e Need for Recovery Scale (NFR). | up to 4 months | 
| Fatigue | 1 RM test is the maximum amount of weight lifted once while performing a standardized exercise for muscle groups - elbow , knee and ankle flexors and extensors, trunk. A weight according to the maximum capacity is chosen. If a replay is completed, find the value of 1RM. | up to 4 months | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Musculoskeletal symptoms | Musculoskeletal symptoms (pain, tingling or numbness) will be assessed using the Nordic Questionnaire for Musculoskeletal. | Outcome measures will be assessed at baseline and after 4 months. | 
| Level of physical activity | Questionnaire Baeck will be used to identify the level of habitual physical activity | Outcome measures will be assessed at baseline and after 4 months. | 
| Perceived exposure | The perception of workers risk factors that may contribute to the development of musculoskeletal complaints will be evaluated through the Job Factors Questionnaire. | Outcome measures will be assessed at baseline and after 4 months. | 
| Physical Fitness Assessment | The physical assessment will be consider adipometry (body fat percentage) others variables. | Outcome measures will be assessed at baseline and after 4 months. | 
| Productivity | Productivity is measured by a single item General Health Questionnaire and Performance at Work | Outcome measures will be assessed at baseline and after 4 months. | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Workplace, Industrial workers, Resistance exercise, Fatigue, Occupational risk, Physical therapy