Variation in sitting pressure distribution and location of the points of maximum pressure with rotation of the pelvis, gender and body characteristics

Moes, Niels C. C. M.

doi:10.1080/00140130601138585

Cited by 30 publications

(30 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The predicted shapes were used to create solid finite element models (FEMs). The solid FEMS were used to validate the constitutive equations by comparing computed pressure distribution knowledge (Moes and Horváth, 2002b) with measured pressure distribution knowledge (Moes, 2006) for individual humans, or groups of individuals, when sitting in chairs. Therefore, the multi-dimensional digital human model was used to analyse the relationships between the stresses and strains inside the bodies of individual humans, or groups of individual humans, and the shapes of chairs, based on actual measured knowledge, and the results were used to create virtual models of the optimised chairs (Moes, 2004).…”

Section: The Initial Implementation Resultsmentioning

confidence: 99%

Multi-dimensional digital human models for ergonomic analysis based on natural data representations

Moes

2015

IJDH

View full text Add to dashboard Cite

Digital human models are often used for ergonomic analysis of product designs, before physical prototypes are available. However, existing digital human models cannot be used to simultaneously: 1) consider the tissue loads and the physiological effects of the tissue loads; 2) optimise the product properties. This paper develops multi-dimensional digital human models for ergonomic analysis based on natural data representations, which include anatomy, morphology, behaviour, physiology, tissue, and posture data representations. The results show that the multi-dimensional digital human models can be used to: 1) accelerate the design process; 2) assess mechanical and physiological loads inside the body and in the contact area between the body and the product; 3) optimise the quality of the product; 4) reduce the number of user trials needed to create the product.

show abstract

Section: The Initial Implementation Resultsmentioning

confidence: 99%

Multi-dimensional digital human models for ergonomic analysis based on natural data representations

Moes

2015

IJDH

View full text Add to dashboard Cite

show abstract

“…Moes [27] explored the relationships between interface pressure, pelvic rotation, and body characteristics of 19 able-bodied participants. Through multiple regression techniques it was shown that intrinsic characteristics including ectomorphic index, gender, mass, and the body anthropometry greatly affected pressures at the seating interface during forward and backward rotations of the pelvis.…”

Section: Seat Adjustments To Induce Postural Movementsmentioning

confidence: 99%

“…Both studies investigated a relatively small postural change in pelvic tilt [27] and pelvic and trunk tilt [42] which are known to have a minimal effect on interface pressures [37, 38]. However, the slight pelvic movement was enough to effectively reduce the maximum pressure for a typically ectomorph (thin) person [27].…”

Section: Seat Adjustments To Induce Postural Movementsmentioning

confidence: 99%

Reviewing the Literature on the Effectiveness of Pressure Relieving Movements

Schofield

Porter-Armstrong

Stinson

2013

Nursing Research and Practice

View full text Add to dashboard Cite

Sitting for prolonged periods of time increases seating interface pressures, which is known to increase the risk of developing pressure ulcers. Those at risk of developing pressure ulcers are advised to perform pressure relieving movements such as “pushups” or “forward leans” in order to reduce the duration and magnitude of pressure acting on the vulnerable ischial tuberosity region. The aim of this review was to synthesize and critique the existing literature investigating the effectiveness of pressure relieving movements on seating interface pressures. The twenty-seven articles included in this paper highlight the need for further research investigating the effect of recommended pressure relieving movements on the pressures around the ischial tuberosities. Furthermore, this review found that the majority of individuals at risk of developing pressure ulcers do not adhere with the pressure relieving frequency or magnitude of movements currently recommended, indicating a need for pressure ulcer prevention to be explored further.

show abstract

“…Most sitting force studies have been focused mainly on static sitting for sitters weighing less than 136 kg, in wheelchair research (Gilsdorf et al 1990;Gilsdorf et al 1991;Aissaoui et al 2001;Chou et al 2002) and vehicle seat design (Rakheja et al 2002;Kolich 2004;Kolich and Taboun 2004;Tarczay 2005;Bush and Hubbard 2007;Moes 2007). Sitting force studies were also found in sitting comfort research with emphasis on sitting pressure distribution on a seat (Chow and Odell 1978;Drummond et al 1982;Bush and Hubbard 2007), which data can be converted to sitting forces.…”

Section: Introductionmentioning

confidence: 98%

Analysis of sitting forces on stationary chairs for daily activities

Tackett

Tor

et al. 2015

Ergonomics

View full text Add to dashboard Cite

No literature related to the study of sitting forces on chairs sat on by people who weighed over 136 kg was found. The Business Institutional Furniture Manufactures Association needs force data for development of performance test standards to test chairs for users who weigh up to 181 kg. 20 participants who weighed from 136 to 186 kg completed 6 tasks on an instrumented chair in the sequence of sitting down, remaining seated and rising. Effects of sitting motion, armrest use and seat cushion thickness on vertical sitting forces and centre-of-force were investigated. Results indicated hard sitting down yielded the highest sitting force of 213% in terms of participants' body weights. Armrest use affected sitting forces of normal sitting down, but not of rising and hard sitting down. Cushion thickness affected sitting forces of normal and hard sitting down and shifting, but not of rising, static seating or stretching backward situations. Practitioner Summary: Results of the sitting force and centre-of-force data obtained for this research can help furniture manufacturers develop new product performance test standards for creating reliable engineering design and manufacturing quality and durable products to meet a niche market need.

show abstract

Variation in sitting pressure distribution and location of the points of maximum pressure with rotation of the pelvis, gender and body characteristics

Cited by 30 publications

References 26 publications

Multi-dimensional digital human models for ergonomic analysis based on natural data representations

Multi-dimensional digital human models for ergonomic analysis based on natural data representations

Reviewing the Literature on the Effectiveness of Pressure Relieving Movements

Analysis of sitting forces on stationary chairs for daily activities

Contact Info

Product

Resources

About