Maximum acceptable work time for the upper limbs tasks and lower limbs tasks. Workload limits

Juan Carlos Velásquez V., Leonardo Briceño A., Diana Marcela Velasquez B., Silvio Juan Viña B.

Producción científica: Capítulo en Libro/InformeContribución a la conferencia

1 Cita (Scopus)

Resumen

Introduction: The physical workload is a major occupational risk factor for workers. Currently the used methods to assess physical dynamic workload evaluate working with the whole body and do not discriminate the load of the body segments. Objective: Determine the maximum acceptable dynamic work time when the work is involves the whole body, the upper limbs and the lower limbs. Methods: Oxygen consumption measurement by ergospirometry and heart rate were monitored in 30 workers exposed to various loads executed with the whole body, legs and upper limbs. Anaerobic threshold was determined by respiratory quotient. This was used to calculate the acceptable dynamic work time. Results: Statistically significant differences were found between acceptable dynamic work time for upper limbs and lower limbs. Negative exponential correlation was found between the workload time, oxygen consumption and heart rate, so we found that R > 0.9 in all cases. We propose six regression equations to determine the acceptable dynamic work time. Conclusions: The acceptable dynamic work time for lower limbs and whole body is similar. The acceptable dynamic work time for upper limbs was significantly lower than acceptable dynamic whole body work time. The relative heart rate seems to be the best indicator to measure acceptable dynamic work time.

Idioma originalInglés estadounidense
Título de la publicación alojadaProceedings of the 20th Congress of the International Ergonomics Association (IEA 2018) - Volume X
Subtítulo de la publicación alojadaAuditory and Vocal Ergonomics, Visual Ergonomics, Psychophysiology in Ergonomics, Ergonomics in Advanced Imaging
EditoresThomas Alexander, Sebastiano Bagnara, Riccardo Tartaglia, Sara Albolino, Yushi Fujita
EditorialSpringer
Páginas282-290
Número de páginas9
ISBN (versión impresa)9783319960586
DOI
EstadoPublicada - 2019
Evento20th Congress of the International Ergonomics Association, IEA 2018 - Florence, Italia
Duración: ago. 26 2018ago. 30 2018

Serie de la publicación

NombreAdvances in Intelligent Systems and Computing
Volumen827
ISSN (versión impresa)2194-5357

Conferencia

Conferencia20th Congress of the International Ergonomics Association, IEA 2018
País/TerritorioItalia
CiudadFlorence
Período8/26/188/30/18

Áreas temáticas de ASJC Scopus

  • Ingeniería de control y sistemas
  • Ciencia de la Computación General

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