Gender differences in psychophysically determined maximum acceptable weights and forces for industrial workers observed after twenty years

Ciriello, Vincent M.; Maikala, Rammohan V.; Dempsey, Patrick G.; O'Brien, Niall V.

doi:10.1007/s00420-010-0589-0

Cited by 17 publications

(8 citation statements)

References 34 publications

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“…The prescripts that were to be given to the participants was similar to that suggested by [61]; where the participants on their own selected the MAWL efficiently which they could lift under a particular condition for eight hours every workday “without straining themselves or without becoming unusually tired, weakened, overheated, or out of breath”. Numerous researchers [62,63,64,65,66,67,68,69] recommended that the psychophysical method is a credible technique to evaluate the perceived exertion through the manual materials handling (MMH) task in low and moderate frequencies (<6 lifts/min).…”

Section: Methodsmentioning

confidence: 99%

Effect of Ambient Oxygen Content, Safety Shoe Type, and Lifting Frequency on Subject’s MAWL and Physiological Responses

Ghaleb

Ramadan

Badwelan

et al. 2019

IJERPH

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Objective: The purpose of this study was to evaluate the lifting capabilities of individuals in hypoxia when they wear different types of safety shoes and to investigate the behavior of the physiological responses induced by the lifting process associated with those variables. Methods: An experimental design was used, based on two sessions. The first was training and acclimatization session, then an experimental lifting phase. A total of ten male students of King Saud University were recruited in the study. A four-way repeated measures design, with four independent variables and six dependent variables, was used in this research. The independent variables that were studied in the experimental lifting phase were: ambient oxygen content (15%, 18%, and 21%), safety shoes type (light-duty, medium-duty, and heavy-duty), lifting frequency (1 and 4 lifts/min), and replication (first and second trials). The dependent variables were also: maximum acceptable weights lifting using the psychophysical technique, heart rate (HR), electromyography (EMG) of (biceps brachii, trapezius, anterior deltoid, and erector spinae), safety shoes discomfort rating, rating of perceived exertion, and ambient oxygen discomfort rating. Results: The maximum acceptable weights lifting that were selected by participants at lower levels of the independent variables (ambient oxygen content 21%, lifting frequency 1 lift/min, and first replication) were significantly higher than at high levels of the independent variables (ambient oxygen content 15%, lifting frequency 4 lift/min, and second replication). Several interaction effects were also significant. Conclusions: It provides evidence that the ambient oxygen content increases the intensity of workload in lifting tasks. It showed that oxygen content affects the psychophysical selection of maximum acceptable weights lifting and the physiological responses represented in muscular activities and heart rate. It suggests that ambient oxygen content must be considered along with the type of safety shoes worn when the lifting task at altitudes occurs.

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Section: Methodsmentioning

confidence: 99%

Effect of Ambient Oxygen Content, Safety Shoe Type, and Lifting Frequency on Subject’s MAWL and Physiological Responses

Ghaleb

Ramadan

Badwelan

et al. 2019

IJERPH

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“…Several investigators (Mital, 1984;Snook and Ciriello, 1991;Ciriello et al, 1993;Ayoub and Woldstad, 1999;Ciriello et al, 2011;Fischer and Dickerson, 2014;Fox and Smith, 2014;Pinder and Boocock, 2014) suggested that the psychophysical approach is a reliable method in assessing the perceived exertion during manual material handling (MMH) task in low and moderate frequencies (<6 lifts/min).…”

Section: Experimental Sessionsmentioning

confidence: 99%

“…It is the maximum weight a participant could lift repetitively according to her/his perception, without overexertion or fatigue for a given lifting condition (Mital, 1984;Snook and Ciriello, 1991;Ciriello et al, 1993;Ayoub and Woldstad, 1999;Ciriello et al, 2011;Fischer and Dickerson, 2014;Fox and Smith, 2014;Pinder and Boocock, 2014).…”

Section: Maximum Acceptable Weight Of Lift (Mawl)mentioning

confidence: 99%

Effect of safety shoes type, lifting frequency, and ambient temperature on subject's MAWL and physiological responses

Al-Ashaik

Ramadan

Al-Saleh

et al. 2015

International Journal of Industrial Ergonomics

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“…Ciriello et al [57,58] reported that the average maximum acceptable torque (MAT) for males was between 1.15 and 1.88 N m, with an approximate ratio of 15-35% relative to maximal isometric torque. For females, the MAT was between 0.33 and 0.65 N m with ratios of 14-24%.…”

Section: Discussionmentioning

confidence: 99%

Quantitative Estimation of Forearm Strength and Associated Muscle Fatigue on the Screw Driving Task

Hsiao¹,

Tu²,

Tsai³

et al. 2020

Preprint

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Background: Upper extremity musculoskeletal disorders are highly prevalent work-related injuries. The problem is commonly related to tasks that involve forceful exertion and repetitive motion. This study investigated forearm muscular strength and fatigue when performing a screw driving task using the screw driving model.Methods: Ten male and two female adults participated in this study. The pre- and post-fatigue maximum handgrip, driving torque, push force, insertion rate of the screws and corresponding electromyographic responses were measured to assess the muscle strength loss and fatigue of the forearm when driving screws. Results: After screwing, the maximal grip force, maximal driving torque, and maximal push force losses were approximately 32%, 24% and 27%, respectively. The percentage force loss of grip force and driving torque in the brachioradialis and extensor carpi ulnaris was greater than those of the biceps brachii. The percentage of maximum driving torque and push force decreased significantly on the eighth screw compared with the first screw. The insertion rate decreased linearly with the number of inserted screws; however, a significant decrease in the insertion rate of the fourth screw was observed. Conclusion: Muscle fatigue may occur in subjects who are inserting more than four screws. More muscle force loss and a higher risk of fatigue occurred in the brachioradialis and extensor carpi ulnaris. The results of this study can be used to assess the risk of forearm injury and potential for muscle fatigue due to exposure to repetitive driving tasks. Keywords: muscle fatigue, maximum isometric forces, driving torque

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Gender differences in psychophysically determined maximum acceptable weights and forces for industrial workers observed after twenty years

Cited by 17 publications

References 34 publications

Effect of Ambient Oxygen Content, Safety Shoe Type, and Lifting Frequency on Subject’s MAWL and Physiological Responses

Effect of Ambient Oxygen Content, Safety Shoe Type, and Lifting Frequency on Subject’s MAWL and Physiological Responses

Effect of safety shoes type, lifting frequency, and ambient temperature on subject's MAWL and physiological responses

Quantitative Estimation of Forearm Strength and Associated Muscle Fatigue on the Screw Driving Task

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