Usability of manual handling aids for transporting materials

Mack, Kathy; Haslegrave, Christine M.; Gray, Michael I.

doi:10.1016/0003-6870(95)00056-9

Cited by 39 publications

(31 citation statements)

References 9 publications

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“…Two studies examined wheelbarrows (Hansson, 1968;Megaw and Gurung, 1996). Mack et al, 1995 andLawson et al, 1993). factors in Fig.…”

Section: Previous Studiesmentioning

confidence: 94%

“…Twenty-two studies involved four-wheeled carts and 15 studies evaluated two-wheeled hand trucks. Cart simulators were considered as four-wheeled carts, and 5 studies involved both four-wheeled carts and two-wheeled hand trucks (Ja¨ger et al, 1984;Nilsson and Dahlman, 1994;Frings-Dresen et al, 1995a, b;Mack et al, 1995). Two studies examined wheelbarrows (Hansson, 1968;Megaw and Gurung, 1996).…”

Section: Previous Studiesmentioning

confidence: 99%

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Pushing and pulling carts and two-wheeled hand trucks

Jung

Haight

Freivalds

2005

International Journal of Industrial Ergonomics

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“…Two studies examined wheelbarrows (Hansson, 1968;Megaw and Gurung, 1996). Mack et al, 1995 andLawson et al, 1993). factors in Fig.…”

Section: Previous Studiesmentioning

confidence: 94%

Section: Previous Studiesmentioning

confidence: 99%

Pushing and pulling carts and two-wheeled hand trucks

Jung

Haight

Freivalds

2005

International Journal of Industrial Ergonomics

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“…In the study of Mack et al [23], users commented on 14 types of manual handling aids, including two-and fourwheeled industrial trolleys. They found that the aids were unstable and difficult to control, especially when they were moved around cracks, steps, or specific types of floor.…”

Section: User Viewsmentioning

confidence: 99%

Views of Adults on Shopping Trolleys: Implications for the Development of a Shopping Trolley~!2010-01-14~!2010-05-27~!2010-07-20~!

Kwong¹,

Lai²,

Spicciolato³

et al. 2010

TOERGJ

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Expert recommendations regarding trolley specifications and customer expectations of trolley features are equally important in the development of a customer-oriented shopping trolley that minimizes the risk of musculoskeletal injuries. However, little is known about such customer expectations, and hence this study aimed to examine the views of Hong Kong adults on shopping trolleys.A cross-sectional survey was conducted with a sample of 140 Chinese adults aged 40 or over with no cognitive or communication impairments. These adults were approached in markets, supermarkets, and public parks in Hong Kong. Individual face-to-face interviews using a questionnaire were used to collect the data.Fifty-six (40%) of the participants were current users, 32 (23%) were ex-users, and 52 (37%) were non-users of shopping trolleys. More of the user and ex-user participants perceived shopping trolleys to be energy saving and protective of the joints. Lightness and easy storage, a pulling and pushing motion, suitability for use on stairs, and adjustable handle height were the trolley features most frequently expected by the participants. The user and ex-user participants rated lightness, a pushing motion and changeable trolley bags to be comparatively more important than the non-user participants.The findings have implications for the development of an evidence-based shopping trolley design. Close cooperation is needed between ergonomists and design and engineer experts to develop an ergonomically designed shopping trolley that prioritizes the health and safety of its users.

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“…†이 논문은 2012년 대구가톨릭대학교 교비해외파견 연구지원금에 의한 것임 †Corresponding Author : Young-Woong Song, 13-13 Hayang-ro, Hayang-eup, 한 운송 회사에서 31명의 작업자의 작업을 조사한 결과, 수행되는 인력 취급 작업의 약 50% 정도가 밀기 혹은 당기기 조작을 요구하는 것으로 나타났고, 이것은 들기와 내리기 작업 형태보다 자주 일어나는 것으로 분석되었다 [6]. 8개 회사 및 기관에서 인력보조 운반도 구를 사용하는 90명의 작업자를 조사한 연구결과를 보 면, 카트의 90% 이상이 하루에 한번 이상 밀어지고 있 고, 또한 30% 정도가 하루에 10번 이상 밀어진다고 조 사되었다 [7]. 이러한 …”

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Ergonomic Optimization of the Handle Height and Distance for the Two-Vertical Type Handles of the 4-Wheel Cart

Song¹

2013

Journal of the Korea Safety Management and Science

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Among various manual materials handling tasks, pushing/pulling was known to be one of the risk factors for the low back and shoulder musculoskeletal disorders (MSDs). This study was conducted to find out an optimal solution set of the handle height and distance for 4-wheel cart with two vertical handles. Ten male college students participated in the pushing force measurement experiment. The face-centered cube design, one of the central composite designs, was applied for the experiment, and the isometric voluntary pushing force was measured in 9 treatment conditions. The second order response surface model was predicted by using the pushing strength as a response variable, and the handle height and distance as independent factors. According to the 2nd order response model, the handle height and distance showed nonlinear relationship with the isometric pushing strength. To maximize the 2nd order response model (pushing force), the handle height and distance were optimized. The optimal handle height was 'xyphoid process height -stature', and the optimal handle distance was '1.25*shoulder width'. When calculated using the anthropometric data of the subjects of this study, the optimal handle height was 115.4 ± 3.4 cm, slightly higher than the elbow height, and the handle distance was 52.9 ± 2.3 cm.

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Usability of manual handling aids for transporting materials

Cited by 39 publications

References 9 publications

Pushing and pulling carts and two-wheeled hand trucks

Pushing and pulling carts and two-wheeled hand trucks

Views of Adults on Shopping Trolleys: Implications for the Development of a Shopping Trolley~!2010-01-14~!2010-05-27~!2010-07-20~!

Ergonomic Optimization of the Handle Height and Distance for the Two-Vertical Type Handles of the 4-Wheel Cart

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