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Stretching and Joint Mobilization Exercises Reduce Call-Center Operators’ Musculoskeletal Discomfort and Fatigue

Denise Helena de Castro Lacaze · Isabel de Camargo Neves Sacco · Lys Esther Rocha · Carlos Alberto de Bragança Pereira · Raquel Aparecida Casarotto

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Ergonomics and Musculoskeletal Disorders Occupational Health and Safety in Workplaces Workplace Health and Well-being

Abstract

AIM: We sought to evaluate musculoskeletal discomfort and mental and physical fatigue in the call-center workers of an airline company before and after a supervised exercise program compared with rest breaks during the work shift. INTRODUCTION: This was a longitudinal pilot study conducted in a flight-booking call-center for an airline in São Paulo, Brazil. Occupational health activities are recommended to decrease the negative effects of the call-center working conditions. In practice, exercise programs are commonly recommended for computer workers, but their effects have not been studied in call-center operators. METHODS: Sixty-four call-center operators participated in this study. Thirty-two subjects were placed into the experimental group and attended a 10-min daily exercise session for 2 months. Conversely, 32 participants were placed into the control group and took a 10-min daily rest break during the same period. Each subject was evaluated once a week by means of the Corlett-Bishop body map with a visual analog discomfort scale and the Chalder fatigue questionnaire. RESULTS: Musculoskeletal discomfort decreased in both groups, but the reduction was only statistically significant for the spine and buttocks (p=0.04) and the sum of the segments (p=0.01) in the experimental group. In addition, the experimental group showed significant differences in the level of mental fatigue, especially in questions related to memory Rienzo, #181ff and tiredness (p=0.001). CONCLUSIONS: Our preliminary results demonstrate that appropriately designed and supervised exercise programs may be more efficient than rest breaks in decreasing discomfort and fatigue levels in call-center operators.

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1993Development of a fatigue scale 1976A Technique for Assessing Postural Discomfort 1994Musculoskeletal disorders among visual display terminal users in a telecommunications company 2008One-year randomized controlled trial with different physical-activity programs to reduce musculoskeletal symptoms in the neck and shoulders among office workers 2000A field study of supplementary rest breaks for data-entry operators 2003Effects of software programs stimulating regular breaks and exercises on work-related neck and upper-limb disorders 2003The effect of work-rest schedules and type of task on the discomfort and performance of VDT users 2007Supplementary breaks and stretching exercises for data entry operators: A follow‐up field study

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2014Effect of Different Types of Rest-Break Interventions on Neck and Shoulder Muscle Activity, Perceived Discomfort and Productivity in Symptomatic VDU Operators: A Randomized Controlled Trial

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