Occupational Health Clinical Trial
Official title:
Effectiveness of Exercise at Workplace for Manual Material Handling Workers
This study aim to evaluate the effectiveness of exercise at workplace for manual material handling workers. This is a randomized control trial study by cluster with three parallel groups (n=200). Participants will be randomized in three groups: (1) control group - will be receive ergonomics orientation . (2) Intervention group - exercise at workplace four times per week, during 15 minutes; (3) Intervention group 2 - exercise at workplace three times per week, during 15 minutes.Outcomes: The outcome measure will be verified in three moments at baseline, in six and eleven months of the intervention. The primary outcome is pain, electromyography. Secondary outcome is palmar dynamometer, BMI, physical activity level.
Objective: This study aim to evaluate the effectiveness of exercise at workplace for control
and prevention nonspecific low back pain. Methods: This is a randomized control trial study
by cluster with three parallel groups. The context of this study is a motorcycle parts
company importer localized in several states (Piaui, Ceará e Maranhão). The company has 575
workers, being 240 manual material handling. All are men over 18 years old that perform goods
shipment (each work develop one this tasks - stock, separation, conference and packaging).
The inclusion criterial are workers that perform manual material handling for at least six
months and signing informed consent form. The exclusion criterial were sick leave. The
workers will be included with low back pain or no low back pain (at baseline). All will be
interviewed to obtain: weight, height, BMI, age, marital status, educational level, and
actual function (stock, separation, conference and packaging sick leave (the last 12 months),
musculoskeletal complains, medications, complementary exams, surgery and or fractures.
Participants will be randomized in three groups: (1) control group - will be receive
orientation about manual material handling, postural and low back care (lecture and
guidance). The training will be instructions according Ergonomics standard (NR17) about
transportation and load handling and exercise in workout. (2) Intervention group 1 - will
receive the same instruction of the control group, and will perform exercise at workplace
four times per week, during 15 minutes; (3) Intervention group 2 - will be receive the same
instruction of the control group, and will perform exercise at workplace three times per
week, during 15 minutes. Outcomes: The outcome measure will be verified in three moments at
baseline, six and eleven months of the intervention. The primary outcome is pain,
electromyography. Secondary outcome is palmar dynamometer, BMI, exercise workout.
Expected Results: The manual material handling workers will be better after intervention by
exercise at workplace. The effectiveness of exercise for low back pain and no low back pain
groups will be contribute to change the behavior in occupational context.
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