The variability and complexity of sitting postural control are associated with discomfort

Søndergaard, Karen Helene Ellegaard; Olesen, Christian Gammelgaard; Søndergaard, Eva Kollerud; Zee, Mark de; Madeleine, Pascal

doi:10.1016/j.jbiomech.2010.03.009

Cited by 101 publications

(104 citation statements)

References 25 publications

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“…Further studies have implemented the use of pressure mats to record the change in a subject's centre of pressure (COP) and found that the standard deviation of COP can be correlated to discomfort (Na et al, 2005;Søndergaard et al, 2010). However many issues have been highlighted with the use of pressure mats whilst assessing the comfort of a seat (Gyi and Porter, 1999) and few researchers have included a driving task in their investigations.…”

Section: Dynamic Fatigue Factorsmentioning

confidence: 99%

Effect of long term driving on driver discomfort and its relationship with seat fidgets and movements (SFMs)

2017

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Discomfort in vehicle seats is a multifactorial problem with large increases in discomfort occurring during extended duration driving. Due to the nature of driver discomfort, previous research has found it difficult to accurately quantify long term driver discomfort via the use of objective measures. This paper reports a laboratory study that investigates a novel objective measure of long term driver discomfort and its correlation with subjective discomfort ratings. Analysis of driver's seat fidgets and movements was conducted over the duration of a 140 minute drive on a driving simulator in addition to collecting subjective ratings of discomfort. It is shown that as subjects' subjective discomfort increases, the frequency of subjects' seat fidgets and movements increases congruently. A large correlation is observed between the subjective and objective measures of driver discomfort and provides the opportunity for long term discomfort evaluations to be made via remote monitoring; removing the need for subjective assessment.

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Section: Dynamic Fatigue Factorsmentioning

confidence: 99%

Effect of long term driving on driver discomfort and its relationship with seat fidgets and movements (SFMs)

2017

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“…Maintaining a slumped sitting posture is a risk factor for work-related muscular disorders and is closely associated with the incidence of low back pain 11,14,15) . Dolan and Green 11) found that a prolonged slumped sitting posture resulted in impaired proprioception of "good posture" and repositioning sense.…”

Section: Discussionmentioning

confidence: 99%

Effects of a Posture Sensing Composite Display Device (PSCD) on Lumbopelvic Motion during Computer Work

Park

Yoo

2011

J Phys Ther Sci

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Abstract. [Purpose] This study evaluated the efficacy of a newly designed chair, equipped with a Posture Sensing Composite Display Device (PSCD), for correcting poor trunk posture while performing computer work.[Subjects] We recruited 10 male workers who regularly used a computer for at least 8h per day.[Methods] Subjects performed computer work while sitting on the newly designed chair with or without the PSCD. Lumbopelvic kinematic data were recorded for 60 s following 10, 20, and 30 min of computer work using a three-dimensional motion analysis system.[Results] The newly designed chair equipped with the PSCD significantly reduced lumbar flexion, lateral bending, and rotation during computer work.[Conclusion] The PSCD may prevent work-related musculoskeletal disorders by enabling a worker to maintain an upright posture during computer work.

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“…The algorithm for nonlinear processing was developed in the seventies and eighties and has received noticeable attention in biomedical signal processing a decade later. However, in ergonomics and sport only a few studies have utilised the methods despite a promising potential (Granata & Gottipati, 2008;Madeleine & Madsen, 2009;Søndergaard et al, 2010). Nonlinear methods can potentially be used to investigate the variability of the exposure.…”

Section: Processing and Interpretation Of The Electromyogram Signalmentioning

confidence: 99%

“…The methods depict subtle changes in the dynamics of biomechanical time series. Non-linear analysis provides new insight into the dynamics of force control by underlining important changes in sitting postural control (Søndergaard et al, 2010), patients (Roerdink et al, 2006) and gender effects (Svendsen & Madeleine, 2010).…”

Section: Force Platformsmentioning

confidence: 99%

“…To unify the systems used for kinematic (and kinetic) data reporting, similarly making parameters comparable across studies, standards were proposed supported by the ISB (Wu et al, 2002;Wu et al, 2005). Similar to kinetic analysis, non-linear approaches have been employed to reveal e.g., complexity and dimensionality changes in relation to human movement (Buzzi et al, 2003;Madeleine & Madsen, 2009;Rathleff et al, 2010;Søndergaard et al, 2010). Kinematic data together with external reaction forces are typically used as input to biomechanical modelling approaches as they are described in the following section.…”

Section: Optical Imaging Systemsmentioning

confidence: 99%

See 1 more Smart Citation

Biomechanical Assessments in Sports and Ergonomics

Madeleine¹,

Samani²,

Zee³

et al. 2011

Theoretical Biomechanics

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The variability and complexity of sitting postural control are associated with discomfort

Cited by 101 publications

References 25 publications

Effect of long term driving on driver discomfort and its relationship with seat fidgets and movements (SFMs)

Effect of long term driving on driver discomfort and its relationship with seat fidgets and movements (SFMs)

Effects of a Posture Sensing Composite Display Device (PSCD) on Lumbopelvic Motion during Computer Work

Biomechanical Assessments in Sports and Ergonomics

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