Determination of efficient methods of lift by comparing trained and untrained male and female lifters.

Shannon, Richard H.

doi:10.1037/e463142004-001

Cited by 2 publications

(2 citation statements)

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“…The weights of the wooden materials were 15, 18 and 24lbs and do not exceed the Recommended Weight Limit – 51lbs for two-handed manual lifting tasks (Waters et al , 1994). The weights were varied based on the maximum selected load and experimental conditions as observed in several manual material handling studies (Lim, 2019; Plamondon et al , 2012; Shannon, 1978).…”

Section: Methodsmentioning

confidence: 99%

Evaluation of postural-assist exoskeleton for manual material handling

Ogunseiju

Olayiwola

Akanmu

et al. 2021

ECAM

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PurposeWork-related musculoskeletal disorders constitute a severe problem in the construction industry. Workers' lower backs are often affected by heavy or repetitive lifting and prolonged awkward postures. Exoskeletal interventions are effective for tasks involving manual lifting and repetitive movements. This study aims to examine the potential of a postural-assist exoskeleton (a passive exoskeleton) for manual material handling tasks.Design/methodology/approachFrom an experimental observation of participants, the effects of postural-assist exoskeleton on tasks and workers were measured. Associated benefits of the exoskeleton were assessed through task performance, range of motion and discomfort.FindingsFindings suggest that the exoskeleton influenced discomfort significantly, however range of motion decreased with lifting tasks. The reduced back flexion and increased hip flexion were also indicatives of the participants' responsiveness to the feedback from the exoskeleton. In addition, task completion time increased by 20%, and participants' back pain did not reduce.Research limitations/implicationsThe work tasks were performed in a controlled laboratory environment and only wearable inertia measurement units (IMUs) were used to assess the risk exposures of the body parts.Practical implicationsThis study opens a practical pathway to human-exoskeleton integration, artificial regeneration or enablement of impaired workforce and a window toward a new order of productivity scaling. Results from this study provide preliminary insights to designers and innovators on the influence of postural assist exoskeleton on construction work. Project stakeholders can be informed of the suitability of the postural assist exoskeletons for manual material handling tasks.Originality/valueLittle has been reported on the benefits and impact of exoskeletons on tasks' physical demands and construction workers' performance. This study adds value to the existing literature, in particular by providing insights into the effectiveness and consequences of the postural-assist exoskeleton for manual material handling tasks.

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Section: Methodsmentioning

confidence: 99%

Evaluation of postural-assist exoskeleton for manual material handling

Ogunseiju

Olayiwola

Akanmu

et al. 2021

ECAM

View full text Add to dashboard Cite

show abstract

“…However, assessment of biomechanical exposures to lifting is non-trivial due to the multiple factors besides load magnitude that affect the risk of low back disorder from lifting. Risk factors include task parameters such as lifting frequency, duration, load moment arm characterized by the horizontal and vertical lifting height, asymmetry angle, and associated movement kinematics (e.g., trunk lateral velocity, trunk twisting velocity, and trunk sagittal angle) (Shannon, 1978;Herrin et al, 1974;Waters et al, 1994;Davis & Marras, 2005). Assessing biomechanical exposures and low back disorder risk associated with lifting-lowering is particularly challenging in non-repetitive work conditions where the magnitude, repetition and duration of activity may differ between workers and within worker across time.…”

Section: Introductionmentioning

confidence: 99%

Classifying Lifting-Lowering Height and Load Level using Inertial Sensor-derived Kinematics: An Initial Study

Lim

D’Souza

2020

Proceedings of the Human Factors and Ergonomics Society Annual

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Determination of efficient methods of lift by comparing trained and untrained male and female lifters.

Cited by 2 publications

References 40 publications

Evaluation of postural-assist exoskeleton for manual material handling

Evaluation of postural-assist exoskeleton for manual material handling

Classifying Lifting-Lowering Height and Load Level using Inertial Sensor-derived Kinematics: An Initial Study

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