ABSTRACT Work-related musculoskeletal disorders are seen as a public health problem, and can often lead to temporary or permanent incapacity to work. Exercises can be indicated to prevent musculoskeletal disorders, allied to ergonomic intervention as a preventive approach. Objectives: The objective of this study is to analyze the effects of workplace muscle strengthening kinesiotherapy in the reduction of pain and discomfort in the upper limbs and cervical region perceived by the workers of a university hospital. Methods: After a priori sample size calculation based on pain numeric scale, 166 volunterrs will be recruted and assigned randomly to the "labor kinesiotherapy" group (GCL) or to the "control group" (CG), considering 10% sample size lost and intention to treat. The primary outcomes will be the pain perceived by the Numerical Pain Scale (NDT) and Nordic Questionnaire, and isokinetic muscle strength through the mean peak torque work of shoulder abduction. The discomfort and disability will be evaluated by the PSFS and QuickDASH questionnaires. The Ergonomic Analysis of Work will be evaluated by the manual "Ergonomic Analysis Focused on Activities" - EAFA and application of QEC, RULA, REBA and HARM tools. Statistical analysis will be performed through PASW Statistics ™, version 20.0. The independent sample T test will be used to compare the groups. The Cohen index will be set for the effect size calculation. All analyzes will be conducted with 95% confidence interval and p \<0.05 significance.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
TRIPLE
Enrollment
85
The intervention group will perform 5 minutes of warm-up with free active exercises, 10 minutes of specific resistance exercises for the cervical and upper limbs and 5 minutes of stretching and muscle relaxation.The initial free active exercises will be performed in 3 sets of 15 repetitions; Resistance exercises will be performed in 3 sets of 10 repetitions and stretching will be performed in 3 sets of 30 seconds. Regarding the intervals between exercises, active recovery will be adopted to counteract the effects of muscle fatigue.
Natalia Claro da Silva
Ribeirão Preto, São Paulo, Brazil
Numerical Pain Scale - NPS
Difference in numerical pain scale in the 3 evaluations. The numerical pain scale score ranges from 0 to 10, with values closer to 10 indicating worse pain.
Time frame: 12 weeks.
shoulder abduction Torque peak in the Isokinetic Dynamometer
Mean difference in torque peak achieved by the Isokinetic Dynamometer at baseline and after 12 weeks.
Time frame: 12 weeks.
Quick Disabilities of de Arm, Shoulder and Hand (QuickDAS)
Difference in DASH questionnaire scores in 3 evaluations. The QuickDASH score ranges from 0 to 100, with values closer to 100 indicating better health.
Time frame: 12 weeks.
Patient Specific Functional Scale (PSFS)
Difference in PSFS questionnaire scores in 3 evaluations. The PSFS allows patients to report on their functional status at baseline and at a follow-up session, to determine if a meaningful change in functional status has occurred.
Time frame: 12 weeks.
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