Good vibrations: Do electrical therapeutic massagers work?

Health, leisure and beauty activities are increasing in popularity, with a particular emphasis on self-help and alternative health practices. One product type that has increased sales with this expansion is the hand-held electric massager. These are products that use vibration as a means of alleviating muscular strains and pains, as well as promoting relaxation. Paradoxically, these products are extremely popular as gifts, but are soon discarded. A multi-disciplinary research team was commissioned by a British manufacturer of electrical consumer products to investigate user attitudes and perceptions of existing massagers, to identify areas of user dissatisfaction. The manufacturer was also concerned about a possible stigma attached to these products because of an association with sex aids. This paper provides an account of the perceptions of both consumers and therapists regarding the use of these products. Identifying the differences between the perceptions of consumers and therapists should help provide a basis for effective integration of user needs, manufacturer requirements, designers’ skills and sound therapeutic practice. The results provide insight to support the development of more effective hand-held massagers

Prognostic model to predict postoperative acute kidney injury in patients undergoing major gastrointestinal surgery based on a national prospective observational cohort study.

Background: Acute illness, existing co-morbidities and surgical stress response can all contribute to postoperative acute kidney injury (AKI) in patients undergoing major gastrointestinal surgery. The aim of this study was prospectively to develop a pragmatic prognostic model to stratify patients according to risk of developing AKI after major gastrointestinal surgery. Methods: This prospective multicentre cohort study included consecutive adults undergoing elective or emergency gastrointestinal resection, liver resection or stoma reversal in 2-week blocks over a continuous 3-month period. The primary outcome was the rate of AKI within 7 days of surgery. Bootstrap stability was used to select clinically plausible risk factors into the model. Internal model validation was carried out by bootstrap validation. Results: A total of 4544 patients were included across 173 centres in the UK and Ireland. The overall rate of AKI was 14·2 per cent (646 of 4544) and the 30-day mortality rate was 1·8 per cent (84 of 4544). Stage 1 AKI was significantly associated with 30-day mortality (unadjusted odds ratio 7·61, 95 per cent c.i. 4·49 to 12·90; P < 0·001), with increasing odds of death with each AKI stage. Six variables were selected for inclusion in the prognostic model: age, sex, ASA grade, preoperative estimated glomerular filtration rate, planned open surgery and preoperative use of either an angiotensin-converting enzyme inhibitor or an angiotensin receptor blocker. Internal validation demonstrated good model discrimination (c-statistic 0·65). Discussion: Following major gastrointestinal surgery, AKI occurred in one in seven patients. This preoperative prognostic model identified patients at high risk of postoperative AKI. Validation in an independent data set is required to ensure generalizability

Getting a Grip

Cutlery design undergoes extensive evaluation of hand-object interaction, leading to improved products for people with hand use limitation

Of mice and men : the role of interactive exhibitions as research tools for inclusive design

The Exhibition is embedded within the culture of Art and Design and has a long history as a form of 'gathering' to prompt academic discourse. This paper explores the role of the exhibition as a theatre for conversation that has parallels with the salon gatherings that emerged in mid-seventeenth-century France. This paper will describe 'The Future Bathroom' - a project that contributes to the development of methods and tools to support an inclusive design agenda. The bathroom provides a number of challenges to user-centred design methodology because of the highly personal, sensitive and intimate nature of the activities that take place there. Various methods were adopted during the course of the enquiry and here we focus on the role of the interactive exhibition as a research tool to gather data and further our understanding within the context of the research objectives. As part of the interdisciplinary research network 'Engineering for Life' (supported through the Engineering and Physical Sciences Research Council (EPSRC) Bridging the Gap Programme), researchers within the Art and Design Research Centre (ADRC) at Sheffield Hallam University explored the potential of a 'field lab' exhibition based on the 'future bathroom' research to both gather and disseminate knowledge.</p

Materials experience as a foundation for materials and design education

An important body of research has developed in recent years, explaining ways in which product materials influence user experiences. A priority now is to ensure that the research findings are adopted within an educational context to deliver contemporary curricula for students studying the subject of materials and design. This paper reports on an international initiative to develop 'materials experience' as a formal subject of study, complementary to traditional technical and engineering approaches to materials and design education. General learning objectives for materials experience are established, followed by specific attention to three kinds of experience that arise during user-material-product interaction: gratification of senses, conveyance of meanings, and elicitation of emotions. For each of these kinds of experience, a specially devised active learning exercise is explained in detail. In combination, these exercises are argued to deliver a good foundation for student appreciation and action on designing for material experiences in product design. The paper concludes with recommendations for how to responsibly redress the imbalance that exists in materials and design education, by transitioning from a culture of 'imparting knowledge about materials' to a culture of 'generating experience with materials'