Análisis de la Frecuencia Cardiaca relacionada con las variables de altura y frecuencia en el Levantamiento de cargas

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Abstract

Resumen Objetivo: Analizar los efectos de las variables altura vertical y la frecuencia de levantamiento sobre la frecuencia cardiaca en trabajadores en la tarea de levantamiento de cargas. Método: Diseño experimental factorial con bloques, considerando como variables independientes la altura vertical y la frecuencia de levantamiento y la dependiente la frecuencia cardiaca. El experimento se desarrolló con 20 trabajadores entre 18 y 40 años con al menos seis meses de experiencia en tareas de almacén y empaque en una empresa de productos lácteos. Se calculó el coeficiente FRIMAT para determinar la carga fisiológica de la tarea. Resultados: Existe un efecto significativo sobre la respuesta de la frecuencia cardiaca debido a la interacción de la frecuencia y la altura vertical del levantamiento. Además, basados en el coeficiente FRIMAT, se obtuvo una calificación de “carga de trabajo mínima” para el 85% de los tratamientos, y en un tratamiento, se presentó una calificación de “algo difícil”. Conclusiones: La altura y frecuencia de levantamiento no actúan de manera independiente y tienen un efecto sobre la carga fisiológica del trabajador en el levantamiento manual de cargas manifestada en la frecuencia cardiaca.

Translated abstract

Abstract Objective: To analyze the effects of vertical height and lifting frequency on the physiological response in workers during lifting of loads. Methods: Factorial experimental design with blocks, considering vertical height and lifting frequency as independent variables; the dependent variable was defined as the heart rate. The experiment was conducted in 20 workers between the ages of 18 and 40 years with at least six months of experience in warehouse and packaging tasks at a dairy products company. We calculated the FRIMAT coefficient to determine the physiological load of the task. Results: We found a significant effect on the heart rate response due to the interaction of the rate and the vertical height of the lift. Based on the FRIMAT coefficient, we obtained a rating of “minimal workload” for 85% of the treatments; for one treatment there was a rating of “somewhat difficult.” Conclusions: Height and frequency of lift do not act separately and have an effect on the physiological load of the worker during manual lifting, reflected by changes in the heart rate.

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Most cited references 17

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Standardised Nordic questionnaires for the analysis of musculoskeletal symptoms

I Kuorinka, T B Jonsson, A Kilbom … (1987)

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A systematic review of low back pain cost of illness studies in the United States and internationally.

Simon Dagenais, Jaime Caro, Scott Haldeman (2008)

The economic burden of low back pain (LBP) is very large and appears to be growing. It is not possible to impact this burden without understanding the strengths and weaknesses of the research on which these costs are calculated. To conduct a systematic review of LBP cost of illness studies in the United States and internationally. Systematic review of the literature. Medline was searched to uncover studies about the direct or indirect costs of LBP published in English from 1997 to 2007. Data extracted for each eligible study included study design, population, definition of LBP, methods of estimating costs, year of data, and estimates of direct, indirect, or total costs. Results were synthesized descriptively. The search yielded 147 studies, of which 21 were deemed relevant; 4 other studies and 2 additional abstracts were found by searching reference lists, bringing the total to 27 relevant studies. The studies reported on data from Australia, Belgium, Japan, Korea, the Netherlands, Sweden, the UK, and the United States. Nine studies estimated direct costs only, nine indirect costs only, and nine both direct and indirect costs, from a societal (n=18) or private insurer (n=9) perspective. Methodology used to derive both direct and indirect cost estimates differed markedly among the studies. Among studies providing a breakdown on direct costs, the largest proportion of direct medical costs for LBP was spent on physical therapy (17%) and inpatient services (17%), followed by pharmacy (13%) and primary care (13%). Among studies providing estimates of total costs, indirect costs resulting from lost work productivity represented a majority of overall costs associated with LBP. Three studies reported that estimates with the friction period approach were 56% lower than with the human capital approach. Several studies have attempted to estimate the direct, indirect, or total costs associated with LBP in various countries using heterogeneous methodology. Estimates of the economic costs in different countries vary greatly depending on study methodology but by any standards must be considered a substantial burden on society. This review did not identify any studies estimating the total costs of LBP in the United States from a societal perspective. Such studies may be helpful in determining appropriate allocation of health-care resources devoted to this condition.

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The health paradox of occupational and leisure-time physical activity.

G. Sjøgaard, A Holtermann, H. Burr … (2012)

Occupational and leisure-time physical activity are considered to provide similar health benefits. The authors tested this hypothesis. A representative sample of Danish employees (n=7144, 52% females) reported levels of occupational and leisure-time physical activity in 2005. Long-term sickness absence (LTSA) spells of ≥3 consecutive weeks were retrieved from a social-transfer payment register from 2005 to 2007. 341 men and 620 females experienced a spell of LTSA during the period. Cox analyses adjusted for age, gender, smoking, alcohol, body mass index, chronic disease, social support from immediate superior, emotional demands, social class and occupational or leisure-time physical activity showed a decreased risk for LTSA among workers with moderate (HR 0.85, CI 0.72 to 1.01) and high (HR 0.77, CI 0.62 to 0.95) leisure-time physical activity in reference to those with low leisure-time physical activity. In contrast, an increased risk for LTSA was shown among workers with moderate (HR 1.59, CI 1.35 to 1.88) and high (HR 1.84, CI 1.55 to 2.18) occupational physical activity referencing those with low occupational physical activity. The hypothesis was rejected. In a dose-response manner, occupational physical activity increased the risk for LTSA, while leisure-time physical activity decreased the risk for LTSA. The findings indicate opposing effects of occupational and leisure-time physical activity on global health.

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Author and article information

Journal

Journal ID (publisher-id): aprl

Title: Archivos de Prevención de Riesgos Laborales

Abbreviated Title: Arch Prev Riesgos Labor

Publisher: Societat Catalana de Salut Laboral y Asociación de Medicina del Trabajo de la Comunidad Valenciana (Barcelona, Barcelona, Spain )

ISSN (Electronic): 1578-2549

Publication date (Print and electronic): March 2021

Volume: 24

Issue: 1

Pages: 34-46

Affiliations

[2] Bogotá orgnameInstitución Universitaria Politécnico Grancolombiano orgdiv1Departmento de ingeniería industrial Colombia

[1] Bogotá Bogotá orgnamePontificia Universidad Javeriana orgdiv1Facultad de ingeniería orgdiv2Departamento de ingeniería industrial Colombia

Article

Publisher ID: S1578-25492021000100034 Publisher ID: S1578-2549(21)02400100034

DOI: 10.12961/aprl.2021.24.01.04

SO-VID: a7cb0421-ef34-453c-a1a1-f18a5bb3063a

License:

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

History

Date accepted : 13 November 2020

Date received : 05 August 2020

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Figures: 0, Tables: 0, Equations: 0, References: 17, Pages: 13

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SciELO Spain

Keywords: Carga de Trabajo,Frecuencia Cardíaca,Ergonomía,musculoskeletal pain,workload,heart rate,ergonomics,Dolor Musculoesquelético

Data availability:

Keywords: Carga de Trabajo, Frecuencia Cardíaca, Ergonomía, musculoskeletal pain, workload, heart rate, ergonomics, Dolor Musculoesquelético

Análisis de la Frecuencia Cardiaca relacionada con las variables de altura y frecuencia en el Levantamiento de cargas Translated title: Analysis of Heart Rate related to height and frequency of manual lifting

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SciELO Spain

Most cited references 17

Standardised Nordic questionnaires for the analysis of musculoskeletal symptoms

A systematic review of low back pain cost of illness studies in the United States and internationally.

The health paradox of occupational and leisure-time physical activity.

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