Ergonomics of posture—Review of various problems of standing and sitting posture

Assis ou debout ?

“…Or comme le confirment un assez grand nombre de recherches sur la position assise et plus particulièrement sur les opératrices de machine à coudre, cette position est accompagnée de nombreux problèm es physiologiques et musculo-squelettiques (Sjogaard et al 1988 ;Vihma, Nurminen et Mutanen 1982 ;Serratos-Perez et Mendiola-Anda 1993 ;Vézina, Tierney et Messing 1992 ;Punnett et al 1985 ;Sokas, Spiegelman et Wegman 1989 ;Brisson, Vinet et Vézina 1989 ;Blader et al 1991 ;Li, Haslegrave et Corlett 1995 ;Laville 1985). Certains, comme la pression exercée sur les disques intervertébraux, dans la région lombaire, sont mêmes plus importants en position assise que debout (Grandjean et Hunting 1977 ;Nachemson 1966 ;Yates et Karwowski 1987, 1992. Il ne faudrait donc pas croire que l'ancienne position assise occupée par les couturières dans le système traditionnel n'entraîne pas des maux importants.…”

The reliability and validity of upper quadrant posture and two-dimensional range of motion measurement tools

“…From this data, there appears to be an inadequate understanding of the reliability and validity of sitting posture measurement. This is worrisome to physiotherapists who would like to use these measures as most of our clients spend significant time in a seated position, either at school or at work, in a car or in front of the television (Granjean and Hunting 1977). Thus, it is proposed that further studies should be carried out where posture and movements are assessed, in all functional postures, to improve the clinical utility of the findings.…”

A Trend Analysis of Dynamic Chair and Applied Technology

“…Grandjean and Hünting (1977) studied the weight for each sitting position of an occupant during work, and the result according to the sitting position was 15% in the front, 52% in the middle, 33% in the back. And also, sitting behavior was 42% for leaning on the backrest, 40% for bending forward and putting both arms on the desk.…”

“…In this study, we summarized sitting patterns and behaviors in Table 2 with reference to Solution Essay of Grandjean and Hünting (1977) and Hermanmiller Co. (2009) and Rethinking Sitting of Peter (2009) prior to investigating the trend of dynamic chair.…”