Postural Stability of Sitting Women

• Autorzy: Nag P. K. , Vyas H. , Nag A. , Pal S.
• Języki publikacji: EN

Abstrakty

EN

The study examined the utility of stabilometric dimensions and explored whether the changes in sitting postures were manifested in functional measures of postural control. Eleven women participated in the study, which used 11 chair sitting postures: arms on laps or arms right angled; armrest at a height of 17, 20 and 23 cm; with or without backrest; slouch or straight back; legs right angled at knees or crossed legs. The backrest and armrest shifted 16.3% of body weight from a seat pan. The characteristics of stabilometric dimensions evaluated the influence of seat components and sitting behaviour on postural balance. The study attempted to evaluate stability and its application in human–seat interface design.

Słowa kluczowe

EN

woman; chair sitting; postural stabilometry

PL

kobieta; krzesło; stabilność postawy

• Wydawca: Taylor & Francis
• Czasopismo: International Journal of Occupational Safety and Ergonomics
• Rocznik: 2013
• Tom: Vol. 19, No. 4
• Strony: 583--595
• Opis fizyczny: Bibliogr. 54 poz., rys., tab., wykr.

Twórcy

autor

Nag P. K.

• National Institute of Occupational Health, Ahmedabad, India

autor

Vyas H.

• National Institute of Fashion Technology, Ministry of Textiles, Kannur, India
• National Institute of Occupational Health, Ahmedabad, India

autor

Nag A.

• National Institute of Occupational Health, Ahmedabad, India

autor

Pal S.

• National Institute of Occupational Health, Ahmedabad, India

Bibliografia

• 1.Corlett EN. Background to sitting at work: research-based requirements for the design of work seats. Ergonomics. 2006;49(14):1538–46.
• 2.Marschall M, Harrington AC, Steele JR. Effect of work station design on sitting posture in young children. Ergonomics. 1995;38(9):1932–40.
• 3.Ng D, Cassar T, Gross CM. Evaluation of an intelligent seat system. Appl Ergon. 1995;26(2):109–16.
• 4.Keshner FA, Peterson BW. Mechanisms controlling human head stabilization. I. Head-neck dynamics during random rotations in the horizontal plane. J Neurophysiol. 1995;73(6):2293–301.
• 5.Vuillerme N, Forestier N, Nougier V. Attentional demands and postural sway: the effect of the calf muscles fatigue. Med Sci Sports Exerc. 2002;34(12):1907–12.
• 6.McCollum G, Shupert C, Nashner LM. Organizing sensory information for postural control in altered sensory environment. J Theor Biol. 1996;180(3):257–70.
• 7.Fenety PA, Putnam C, Walker JM. In-chair movement: validity, reliability and implications for measuring sitting discomfort. Appl Ergon. 2000;3(4):383–93.
• 8.Legg SJ, Mackie HW, Milicich W. Evaluation of prototype multi-purpose office chair. Ergonomics. 2002;45(2):153–63.
• 9.Deros BMd, Mohamad D, Ismail AR, Soon OW, Lee KC, Nordin MS. Recommended chair and work surfaces dimensions of VDT tasks for Malaysian citizens. European Journal of Scientific Research. 2009;34(2): 156–67. Retrieved September 30, 2013, from: http://pdf.aminer.org/000/239/777/eye_discomfort_and_vdt_work.pdf.
• 10.Chiari L, Rocchi L, Cappello A. Stabilometric parameters are affected by anthropometry and foot placement. Clin Biomech (Bristol, Avon). 2002;17(9–10):666–77.
• 11.Rocchi L, Chiari L, Horak FB. Effects of deep brain stimulation and levodopa on postural sway in Parkinson’s disease. J Neurol Neurosurg Psychiatry. 2002;73(3):267–74.
• 12.Helander MG, Zhang L. Field studies of comfort and discomfort in sitting. Ergonomics. 1997;40(9):895–915.
• 13.Nag PK, Pal S, Kotadiya SM, Nag A, Gosai K. Human seat interface analysis of upper and lower body weight distribution. Int J Ind Ergon. 2008;38(5–6):539–45.
• 14.Nag PK, Vyas H, Nag A, Pal S. Applying stabilometry in characterizing floor sitting modes of women. Int J Ind Ergon. 2008;38(11–12):984–91.
• 15.Seymour MB. The ergonomics of seating—posture and chair adjustment. Nurs Times. 1995;91(9):35–7.
• 16.Sondergaard KH, Olesen CG, Sondergaard EK, de Zee M, Madeleine P. The variability and complexity of sitting postural control are associated with discomfort. J Biomech. 2010;43(10):1997–2001.
• 17.Lacoste M, Therrien M, Cote JN, Shrier I, Labelle H, Prince F. Assessment of seated postural control in children: comparison of a force platform versus a pressure mapping system. Arch Phys Med Rehabil. 2006;87(12):1623–9.
• 18.Berg K, Wood-Dauphinee S, Williams JI, Gayton D. 1998. Measuring balance in elderly: preliminary development of an instrument. Physiotherapy Canada. 1989;41(6):304–10. Retrieved September 30, 2013, from: http://utpjournals.metapress.com/content/t30n37061661184r/fulltext.pdf.
• 19.Deliagina TG, Zelenin PV, Beloozerova IN, Orlovsky GN. Nervous mechanisms controlling body posture. Physiol Behav. 2007;92(1–2):148–54.
• 20.Dault MC, Geurts AC, Mulder TW, Duysens, J. Postural control and cognitive task performance in healthy participants while balancing on different supportsurface configurations. Gait Posture. 2001;14(3):248–55.
• 21.de Visser E, Pauwels J, Duysens JE, Mulder T, Veth RP. Gait adaptations during walking under visual and cognitive constraints: a study of patients recovering from limb-saving surgery of lower limb. Am J Phys Med Rehabil. 1998;77(6):503–9.
• 22.Winter DA, Patla AE, Prince F, Ishac M, Gielo-Perczak K. Stiffness control of balance in quiet standing. J Neurophysiol. 1998;80(3):1211–21.
• 23.Collins JJ, DeLuca CJ. Upright, correlated random walks: a statistical-biomechanics approach to the human postural control system. Chaos. 1995;5(1):57–63.
• 24.Donker SF, Roerdink M, Greven AJ, Beek PJ. Regularity of center-of-pressure trajectories depends on the amount of attention invested in postural control. Exp Brain Res. 2007;181(1):1–11.
• 25.Alexander NB, Gross MM, Medell JL, Hofmeyer MR. Effects of functional ability and training on chair-rise biomechanics in older adults. J Gerontol A Biol Sci Med Sci. 2001;56(9):538–47.
• 26.Kerr HM, Eng JJ. Multidirectional measures of seated postural ability. Clin Biomech (Bristol, Avon). 2002;17(7):555–7.
• 27.Chiari L, Cappello A. Musculoskeletal modelling in the control of posture. Theor Issues Ergon. 2005;6(3–4):271–6.
• 28.Bizid R, Margnes E, François Y, JullyY, Gonzalez G, Dupui P, et al. Effects of knee and ankle muscle fatigue on postural control in the unipedal stance. Eur J Appl Physiol. 2009;106(3):375–80.
• 29.Raymakers JA, Samson MM, Verhaar HJ. The assessment of body sway and the choice of the stability parameter(s). Gait Posture. 2005;21(1):48–58.
• 30.Reid DT, Sochaniwskyj A, Milner M. An investigation of postural sway in sitting of normal children and children with neurological disorders. Phys Occup Ther Pediatr. 1991;11(1):19–36.
• 31.McClenaghan BA. Sitting stability of selected subjects with cerebral palsy. Clin Biomech (Bristol, Avon). 1989;4(4):215–6.
• 32.Maki BE, Hollidat PJ, Topper AK. A prospective study of postural balance and risk of falling in an ambulatory and independent elderly population. J Gerontol. 1994;49(2):M72–84.
• 33.Rocchi L, Chiari L, Cappello A. Feature selection of stabilometric parameters based on principal component analysis. Med Biol Eng Comput. 2004:42(1):71–9.
• 34.Indian Council of Medical Research. Ethical guidelines for biomedical research on human participants. New Delhi, India: Indian Council of Medical Research; 2006. p. 1–77. Retrieved September 30, 2013, from: http://icmr.nic.in/ethical_guidelines.pdf.
• 35.BTS Bioengineering. SWAY software manual, release 1.4.4 Milan, Italy.
• 36.Buchanan JJ, Horak FB. Emergence of postural patterns as a function of vision and translation frequency. J Neurophysiol. 1999;81(5):2325–39. Retrieved September 30, 2013, from: http://jn.physiology.org/content/81/5/2325.long.
• 37.Ariens GA, Bongers PM, Douwes M, Miedema MC, Hoogendoorn WE, van der Wal G, et al. Are neck flexion, neck rotation, and sitting at work risk factors for neck pain? Results of a prospective cohort study. Occup Environ Med. 2001;58(3):200–7.
• 38.Freudenthal A, van Riel MP, Molenbroek JF, Snijders CJ. The effect on sitting posture of a desk with a ten-degree inclination using an adjustable chair and table. Appl Ergon. 1991;22(5):329–36.
• 39.Korhonen T, Ketola R, Toivonen R, Luukkonen, R, Hakkanen M, Viikari-Juntura E. Work related and individual predictors for incident neck pain among office employees working with video display units. Occup Environ Med. 2003;60(7):475–82. Retrieved September 30, 2013, from: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1740578/.
• 40.Demure B, Luippold R, Bigelow C, Ali D, Mundt K, Liese B. video display terminal workstation improvement program: I. Baseline associations between musculoskeletal discomfort and ergonomic features of workstations. J Occup Environ Med. 2003;42(8):783–91.
• 41.Walsh K, Varnes N, Osmond C, Styles R, Coggon D. Occupational causes of lowback pain. Scand J Work Environ Health. 1989;15(1):54–9.
• 42.Grandjean E, Hünting W. Ergonomics of posture—review of various problems of standing and sitting posture. Ergonomics. 1977;8(3):135–40.
• 43.Hermann S. Exploring sitting posture and discomfort using nonlinear analysis methods. IEEE Trans Inf Technol Biomed. 2005;9(3):392–401.
• 44.Gurfinkel VS, Ivanenko YuP, Levik YuS, Babakova IA. Kinesthetic reference for human orthograde posture. Neuroscience. 1995;68(1):229–43.
• 45.Kanaya T, Gresty MA, Bronstein AM, Buckwell D, Day B. Control of the head in response to tilt of the body in normal and labyrinthine-defective human subjects. J Physiol. 1995;489(Pt 3):895–910.
• 46.Womersley L, May S. Sitting posture of subjects with postural backache. J Manipulative Physiol Ther. 2006;29(3):213–8.
• 47.Siggeirsdottir K, Jonsson BY, Jonsson H Jr, Iwarsson S. The timed ‘Up & Go’ is dependent on chair type. Clin Rehabil. 2002;16(6):609–16.
• 48.Makhsous M, Lin F, Hendrix RW, Hepler M, Zhang L. Sitting with adjustable ischial and back supports: biomechanical changes. Spine (Phila Pa 1976). 2003;28(11):1113–21.
• 49.Lis A, Black KM, Korn H, Nordin M. Association between sitting and occupational LBP. Eur Spine J. 2007;16(2):283–98. Retrieved September 30, 2013, from: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2200681/.
• 50.Rempel DM, Krause N, Goldberg R, Benner D, Hudes M, Goldner GU. A randomized controlled trial evaluating the effects of two workstation interventions on upper body pain and incident musculoskeletal disorders among computer operators. Occup Environ Med. 2006;63(5):300–6. Retrieved September 30, 2013, from: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2092482/.
• 51.Carcone SM, Keir PJ. Effects of backrest design on biomechanics and comfort during seated work. Appl Ergon. 2007;38(6):755–64.
• 52.Laughton CA, Salvin M, Katdare K, Nolan L, Bean JF, Kerrigan DC, et al. Aging muscle activity and balance control: physiologic changes associated with balance impairment. Gait Posture. 2003;18(3):101–8.
• 53.Silfies SP, Cholewicki J, Radebold A. The effects of visual input on postural control of the lumbar spine in unstable sitting. Hum Mov Sci. 2003;22(3):237–52.
• 54.Winter DA, Prince F, Frank JS, Powell C, Zabjek KF. Unified theory regarding A/P and M/L balance in quiet stance. J Neurophysiol. 1996;75(6): 2334–43.