A novel device for evaluating forces during the dynamic jar opening action—Do older and younger adults do things differently?

Carse, Bruce; Thomson, Avril; Stansfield, Ben

doi:10.1016/j.medengphy.2010.11.017

Cited by 16 publications

(15 citation statements)

References 13 publications

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“…Other major factors affecting the opening process include the physical capabilities of users since these capabilities can determine their ability to open packages. Understanding users' capabilities and characteristics will help in designing a user‐friendly package . Packaging characteristics and the choice of opening technique can also affect the opening process.…”

Section: Package Openingmentioning

confidence: 99%

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State of the art of user packaging interaction (UPI)

Mumani

Stone

2018

Packag Technol Sci

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User packaging interaction (UPI) has evolved in packaging research because of its importance to users, manufacturers, and designers. A great deal of work addressing problems and suggesting potential improvements has been directed toward UPI. However, this work is not easily accessible to researchers as it lacks a cohesive structure. This paper serves as a platform for UPI researchers by presenting previous work UPI in an organized structure based on stages of interaction. Over 100 articles were reviewed to identify the scope of research in this area and then categorized according to stages of interaction. During the review of more articles, these stages of interaction were modified to ensure that they reflected all the reviewed articles. The review process resulted in the enumeration of the following stages: at point of purchase, checking out, handling, opening, and disposal. The related articles in each category are presented and discussed, and potential future work is presented. The articles were further categorized according to the age and gender of users under test, and packaging and product types considered. The review process has revealed different issues in the current research structure of UPI including the comprehensibility of the conducted research and the distribution of the reviewed articles. On the basis of this review, a model is proposed for improving the UPI by quantitatively evaluating the package design and affordances provided at each interaction stage.

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Section: Package Openingmentioning

confidence: 99%

“…Berns, 144 Carse et al, 145 Nicolay and Walker, 146 Rahman et al, 147 Marks et al, 148 and Rowson et al 149 Physical capabilities of users such as grip strength, torque, squeeze, and compressive forces can determine the ability to access their packages.…”

Section: Physical Capabilities Of Usersmentioning

confidence: 99%

State of the art of user packaging interaction (UPI)

Mumani

Stone

2018

Packag Technol Sci

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“…In another UK study, 21 subjects were tested with a specialist device (Figure ) . The lid diameter was 73 mm with a body diameter of 80 mm.…”

Section: Previous Researchmentioning

confidence: 99%

Talking about Torque: Measuring Pack Accessibility - a Review

Yoxall

Rowson

2014

Packag. Technol. Sci.

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Vacuum Lug Closures (VLCs) are a simple, reliable and low cost packaging option used for the protection and promotion of jams, pickles and sauces. Several surveys and anecdotal evidence suggest that packaging of this type can be notoriously difficult to open. Given the difficulty which packaging of this type may pose there has been significant academic research in understanding the difficulties associated with accessing packaging of this type. In response to the qualitative data gathered in these surveys research teams have attempted to quantify the forces that users can apply. What emerges from the approaches taken is a complex picture. Researchers do make comparisons with previous work but numbers of people tested, materials used, diameter and posture differ between research groups as does the information and style of the dissemination of results.Future packaging research experimental design should be more thorough and consistent in the sampling and presentation of data to facilitate repeatability and validity and enable the data gathered to form a larger data set. Further, to create usable 'design limits' for manufacturers and designers to reduce the variability within the data set, more focused measurements should be taken on distinct user groups such as a specific female decile and subgroup, i.e. small handed women between 70 and 80. Working with distinct populations would enable the likelihood of design changes to packaging to be readily compared and assessed.

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“…In addition to maximising torque capabilities, user discomfort associated with high force concentration with varying handle shapes needs to be considered in determining the optimum handle shapes, especially for the tasks that require prolonged or repetitive exertions. Consideration of the effect of handle shape on people's grasping strategy, movement speed, and speed of force application to handles could also assist improving safety of products or tools for particular tasks (Chang et al 2008, Kuo et al 2009, Carse et al 2011, Rowson and Yoxall 2011.…”

Section: Future Studiesmentioning

confidence: 99%

Effect of elliptic handle shape on grasping strategies, grip force distribution, and twisting ability

Seo

Armstrong

2011

Ergonomics

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A generic torque model for various handle shapes has been developed and evaluated using experimental data. Twelve subjects performed maximum isometric torques using circular and elliptic cylinders in medium and large sizes (circular: r = 25.4, 38.1 mm; elliptic: semi-major/minor axes = 30.9/19.3, 47.1/27.8 mm) finished with aluminium and rubber, in two opposite directions. Torque, grip force distribution, and finger position were recorded. Maximum torques were 25%, 7%, and 31% greater for the elliptic, large-size, and rubber-finished cylinders than for the circular, medium-size, and aluminium-finished cylinders, respectively. Greater torque for the elliptic cylinders was associated with 58% greater normal force that the subjects could generate for the elliptic than circular cylinders. The model suggests that greater torques for the large-size and rubber cylinders are related to long moment arms and greater frictional coupling at the hand-cylinder interface, respectively. Subjects positioned their hands differently depending on torque direction to maximise their normal force and torque generation. STATEMENT OF RELEVANCE: Desirable handle features for torque generation may be different from those for grip only. Design of handles per advantageous handle features (e.g., shape, size, and surface) may help increase people's torque strength and contribute to increased physical capacity of people.

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A novel device for evaluating forces during the dynamic jar opening action—Do older and younger adults do things differently?

Cited by 16 publications

References 13 publications

State of the art of user packaging interaction (UPI)

State of the art of user packaging interaction (UPI)

Talking about Torque: Measuring Pack Accessibility - a Review

Effect of elliptic handle shape on grasping strategies, grip force distribution, and twisting ability

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