Influence of foot positions on the spine and pelvis

Betsch, Marcel; Schneppendahl, Johannes; Dor, Larissa; Jungbluth, Pascal; Grassmann, Jan-Peter; Windolf, Joachim; Thelen, Simon; Hakimi, M.; Rapp, Walter; Wild, Michael

doi:10.1002/acr.20601

Cited by 46 publications

(27 citation statements)

References 54 publications

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“…10 (d-1) and (d-2) . Many studies have been conducted on the effects of different foot positions and pressure distributions on the hip position, spinal posture, and low back pain [49] – [55] .…”

Section: Discussionmentioning

confidence: 99%

Analysis of Difference in Center-of-Pressure Positions Between Experts and Novices During Asymmetric Lifting

Jeong

Yamada

Kido

et al. 2016

IEEE J. Transl. Eng. Health Med.

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Although numerous studies have analyzed the relationship between manual material handling (MMH) and the forces acting on the lumbar spine, the difference in the MMH between experts and novices through the analysis of measured data has not been well studied. The purpose of this paper was to analyze the difference in the MMH positions between ten skilled experts working at a freight transport company (Group 1) and five unskilled novices without any experience (Group 2) during asymmetric lifting. All the human subjects performed asymmetric lifting experiments with closed eyes; the experiments involved moving loads (6 and 18 kg) to the left side. Time series data of the vertical ground reaction force were measured, using a Wii Balance Board, and then, the center-of-pressure (CoP) trajectories were calculated. The balance board was used for the measurement, because it was reliable, inexpensive, and portable and provided good repeatability even on rough surfaces, and all the information pertaining to the load and worker under various conditions was captured without any omissions. Under the 18 kg load condition, the CoP positions for Group 2 were located on the same side during left asymmetric lifting; however, those for Group 1 were located on the opposite side during left asymmetric lifting (\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{upgreek} \usepackage{mathrsfs} \setlength{\oddsidemargin}{-69pt} \begin{document} }{}$P <0.001$ \end{document}). Furthermore, under the 6 kg load condition, the load weight influenced asymmetric lifting for most subjects of Group 2 such that the CoP positions were located on the opposite side (\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{upgreek} \usepackage{mathrsfs} \setlength{\oddsidemargin}{-69pt} \begin{document} }{}$P <0.001$ \end{document}). Based on the simulation and electromyography measurement results, we inferred that the difference in the CoP positions between the two different groups could be attributed to the difference in the hip positions. Most skilled experts position their hips in such a way that their CoP trajectories move toward the opposite side during left asymmetric lifting. Although the skillful characteristics of experts may be responsible for the lightening of the burden on the waist during asymmetric lifting, there are still two points that this paper does not clarify: the relationship between the experts’ adjustment of the hip position and the load of the weight, and the influence of an imbalance of the CoP position on the forces acting on the lumbar spine.

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Section: Discussionmentioning

confidence: 99%

Analysis of Difference in Center-of-Pressure Positions Between Experts and Novices During Asymmetric Lifting

Jeong

Yamada

Kido

et al. 2016

IEEE J. Transl. Eng. Health Med.

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“…Des Weiteren zeigten die Autoren mithilfe der Rasterstereographie, dass es durch veränderte Fuß-positionen wie sie z. B. bei einer Einlagenversorgung angestrebt werden, zu signifikanten Veränderungen der Beckenstellung kommen kann [4]. Weitere Einsatzmöglichkeiten dieser Messtechnik ergeben sich für Patienten mit osteoporotisch bedingten Frakturen der Brust-und Lendenwirbelsäule [29].…”

Section: Aktuelle Entwicklungenunclassified

Strahlenfreie Diagnostik bei Skoliosen

et al. 2015

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“…Joints of the foot work with the other joints of the lower limb within the open and closed kinematic chains and it is known that the associated movements exist (Betsch et al, 2011). Inadequate settings of the motion segments of the lower limbs thus may gradually lead to an asymmetric load musculoskeletal structures and thereby cause pathology of the musculoskeletal system (Billis et al, 2007;Curran & Dananberg, 2005;Hsi, 2016;Vařeka, 2004), e.g.…”

Section: Introductionmentioning

confidence: 99%