Determination of maximum acceptable weight of lift by adult Indian female workers

Maiti, Rina; Ray, Goshaidas

doi:10.1016/j.ergon.2004.06.003

Cited by 25 publications

(18 citation statements)

References 30 publications

(42 reference statements)

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“…The job was to lift boxes of varying sizes, ranging from 15.7 to 28.7 pounds with duration of 1 h-4 h a day. The following were the outcomes of the study [16,17].…”

Section: At Auto Parts Manufacturing Firm To Know Lbp Level Before Anmentioning

confidence: 99%

The NIOSH Lifting Equation for Manual Lifting and Its Applications

Shahu¹

2016

J Ergonomics

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The literature on the problems caused by frequent lifting and lowering tasks has grown rapidly in the past few decades. This paper focuses on presenting literature on the NIOSH Lifting Equation, which is used for calculating injure-free lifting capabilities for workers who perform two-handed manual lifting tasks and using the study as a basis for applying it to a manufacturing company Technocrats India, Nagpur. The papers acquired for the study focus on the importance of the equation to reduce the effect of Low Back Pain (LBP) associated with various lifting operations. The result of the study is a systematic research and compilation of various aspects of the equation and its applications at construction sites and industrial organizations and its use at a manufacturing company where the manufacturing process comprises the machining of the Cylinder Body part and Valve body part. The equation will be used for these to know the effect of the work on workers. The final assessment of the study is that for successful outcomes for reduction in Work related Musculoskeletal Disorders (WMSDs) and LBP, the equation should be thoroughly considered for manual lifting practices.

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“…The job was to lift boxes of varying sizes, ranging from 15.7 to 28.7 pounds with duration of 1 h-4 h a day. The following were the outcomes of the study [16,17].…”

Section: At Auto Parts Manufacturing Firm To Know Lbp Level Before Anmentioning

confidence: 99%

The NIOSH Lifting Equation for Manual Lifting and Its Applications

Shahu¹

2016

J Ergonomics

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“…Manual material handling (MMH) tasks are an important contributor of lower back problems and other WRMSDs [2–4]. WRMSDs due to MMH tasks have long been reckoned as one of the main occupational injuries that has affected the quality of life amidst the industrial working population in the US and other nations [5, 6]. In Taiwan, approximately 59% of Taiwanese workers were injured from MMH tasks [7].…”

Section: Introductionmentioning

confidence: 99%

“…Most studies have determined the MAWL for individual task, such as symmetric lifting task [6, 22–24] and asymmetric lifting task [6, 7, 25]. Hidalgo and Genaidy [26] introduced a comprehensive lifting model (CLM) for evaluating and designing of manual tasks.…”

Section: Introductionmentioning

confidence: 99%

Maximum acceptable frequency of lift for combined manual material handling task in Malaysia

2019

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Background Extensive studies have been carried out over the years to determine the maximum acceptable weight that a worker is capable of lifting in a given situation among Occidental populations across Europe and US. Nonetheless, studies that place emphasis on using lifting frequency as the quantifying task parameter, especially in developing countries such as Malaysia, appear to be in scarcity. Hence, this study determined the maximum acceptable frequency of lift (MAFL) for combined manual material handling (MMH) tasks amongst Malaysian males. Method Two lifting loads were considered in this study: 1 kg and 5 kg. Each subject adjusted his frequency of lifting using a psychophysical approach. The subjects were instructed to perform combined MMH task as fast as they could over a period of 45 minutes without exhausting themselves or becoming overheated. The physiological response energy expenditure was recorded during the experimental sessions. The ratings of perceived exertion (RPE) for four body parts (forearms, upper arm, lower back and entire body) were recorded after the subjects had completed the instructed task. Results The mean frequencies of the MMH task had been 6.8 and 5.5 cycles/minute for lifting load of 1 and 5 kg, respectively, while the mean energy expenditure values were 4.16 and 5.62 kcal/min for 1 and 5 kg load, respectively. These displayed a significant difference in the Maximum Acceptable Frequency of Lift (MAFL) between the two loads, energy expenditure and RPE ( p < 0.05) whereby the subjects appeared to work harder physiologically for heavier load. Conclusion It can be concluded that it is significant to assess physiological response and RPE in determining the maximum acceptable lifting frequency at varied levels of load weight. The findings retrieved in this study can aid in designing tasks that do not exceed the capacity of workers in order to minimise the risk of WRMSDs.

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“…It was also estimated in a study conducted on adult female construction workers and household workers that the MAWL is around 15 kg [23]. Considering the cardiovascular, muscular and biomechanical stresses the water carrying by shoulder and waist mode should be discontinued.…”

Section: Psycho-physiological Evaluationmentioning

confidence: 99%