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KMID : 1039220190290030368
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Journal of Korean Society of Occupational and Environmental Hygiene
2019 Volume.29 No. 3 p.368 ~ p.374
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Comparison between Heart Rates and Borg’s Scale as a Tool to Evaluate Physical Workload
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Kim Byoung-Hoon
Park Ji-Young
Tak Sang-Woo
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Abstract
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Objectives: To examine the associations of borg’s scale with actual heart rates of workers and energy consumption during their physical work.
Methods: A total of 72 workers performing physical activities in postal service, ceramic manufacturing, and metal manufacturing participated in heart rate measurement for 1 work shift using the activity meter(A360) and responded to a borg’s scale questionnaire.
Results: In consistent with previous findings, we presented high correlation between borg’s scale and energy consumption measures among workers performing physical activities(r=0.89) while post-work average heart rate showed nearly no correlation with post-work borg’s scale (r=0.09). We proposed a set of adjustments when using borg’s scale to estimate physical workload for those workers engaged in physical activities during the majority of their work shift.
Conclusions: Our findings suggest that a caution should be paid to when using Borg’s scale to estimate heart rates during physical activities as well as energy consumption as the product of heart rate measurements.
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KEYWORD
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Borg’s scale, energy expenditure, rest heart rate, work heart rate, workload
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