“DETERMINATION OF THE MAXIMUM ACCEPTABLE WEIGHTS IN NON-STANDARD POSITIONS
At world-wide level different studies related to the manual material handling have taken place in order to establish standards that might allow to diminish the work injuries, as in the case of the tables proposed by Snook & Ciriello (1991). In Mexico does not exist any reference that indicates the application of standards in the workstations design, which generates the necessity to determine if the results of the mentioned investigations are applicable to the population of Hermosillo, Sonora. 22 men and 17 women participated in the experiment, all students with ages of 20 to 25 years without industrial ability in lifting activities. A psychophysics criterion was applied. The duration of the experiment was 3 weeks, one of training and two of taking measurements. The maximum weights were determined for the following positions: standing up, sitting and kneeling with one or two hands, for one lifting per minute and per work day frequencies. We could determine the maximum acceptable weights in nonstandard positions in the repetitive manual handling of loads for the population of Hermosillo, Sonora, and it was found that they do not agree with the standards presented by Snook & Ciriello. The results shows that kneeling position allows people to lift a heavier load than standing and sitting positions. We also conclude that the Snook tables indicate greater weights than the Hermosillo data, so they should not be applied for the Hermosillo population. For the one lifting per day work activities for male and female we can conclude that the standing position allows people to lift a heavier load than standing and sitting positions, but the kneeling position allows people to lift a heavier load than sitting position.
Manual materials handling Mazimum acceptable weights Psychophysical methodology
De la Vega Bustillos Enrique Javier Báez Hernández Grace Erandy Castro Estrada Claudia Selene Rodríguez Vega, Graciela
Departamento de Investigación y PosgradoInstituto Tecnológico de HermosilloAv. Tecnológico y Perifer Departamento de Investigación y Posgrado Instituto Tecnológico de Hermosillo Av. Tecnológico y Perif
国际会议
17th World Congress on Ergonomics(第十七届国际人类工效学大会)
北京
英文
1-6
2009-08-09（万方平台首次上网日期，不代表论文的发表时间）