Resistance Exercise to Improve Fatigue in Workplace (REW) (REW)

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

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.

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.

Comparative Group will receive a light training protocol including warming up, stretching and resisted exercise using elastic bands.

Intervention group will receive training protocol including warming up, stretching a specific resistance training with increase progressive load.

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.

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.

Psychosocial risk factors and stress, resulting in work-induced fatigue, will be obtained by e Need for Recovery Scale (NFR).

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.

Musculoskeletal symptoms (pain, tingling or numbness) will be assessed using the Nordic Questionnaire for Musculoskeletal.

The perception of workers risk factors that may contribute to the development of musculoskeletal complaints will be evaluated through the Job Factors Questionnaire.

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

Santos HG, Chiavegato LD, Valentim DP, Padula RS. Effectiveness of a progressive resistance exercise program for industrial workers during breaks on perceived fatigue control: a cluster randomized controlled trial. BMC Public Health. 2020 Jun 3;20(1):849. doi: 10.1186/s12889-020-08994-x.

Santos HG, Chiavegato LD, Valentim DP, da Silva PR, Padula RS. Resistance training program for fatigue management in the workplace: exercise protocol in a cluster randomized controlled trial. BMC Public Health. 2016 Dec 22;16(1):1218. doi: 10.1186/s12889-016-3872-5.