Biomechanical stress analysis of squatting and kneeling postures \Focus on IFA s work No. 0308\ IFA

We use cookies to personalise content and ads, to provide social media features and to analyse traffic. We share info about use of our site with social media, ads and analytics partners. By continuing to browse you are agreeing to use of cookies. See details or close this message.

Page

100%

Specifications	Biomechanical stress analysis of squatting and kneeling postures \Focus on IFA s work No. 0308\ IFA
Business section

Problem In the scientific justification for recognition of knee osteoarthritis as an occupational disease (BK No. 2112), the

Specifications	Biomechanical stress analysis of squatting and kneeling postures \Focus on IFA s work No. 0308\ IFA
Suggested Link Details/Purchase
Content	Problem In the scientific justification for recognition of knee osteoarthritis as an occupational disease (BK No. 2112), the cause is stated to be increased compressive force upon the joint cartilage during occupational activity performed in a kneeling or squatting posture. No convincing biomechanical studies of this subject are as yet available, how- ever. The increase in loading upon the joint during bending of the knee in a standing position cannot be extrapolated to the loading during squatting and kneeling. The accident insurance institutions have the task of preventing hazardous stresses during occupa- tional activity, as well as making compensation payments. Sound background knowledge is how- ever required in order for suitable prevention rec- ommendations to be made. A considerable need therefore exists for validated data on the loading on the knee joint during tasks performed in squat- ting and kneeling postures. Activities In co-operation with the BG BAU, the German Social Accident Insurance Institution for the build- ing trade, a project was launched for the analysis of kneeling and squatting postures. Besides the analysis of static postures such as kneeling, squatting and kneeling on the heels, sample measurements were also to be taken during tasks typically performed by tilers and heating system fitters. Fitter during installation of a radiator in the laboratory Altogether, ten skilled personnel – five tilers and five heating system fitters – were involved in the tests. Firstly, however, a special biomechanical analysis model had to be developed in order to permit analysis of loading upon the knee joint at least under laboratory conditions. Results and Application The knee (tibio-femoral) joint forces measured in squatting and kneeling postures attained uniform values of around 50% BW (body weight). The contact force of the knee-cap was between 80% and 100% BW. Comparable stress values were measured during tile-laying and radiator fitting; these were reduced still further when the hands were used for additional support. Biomechanical stress analysis of squatting and kneeling postures 0308 Edition 2/2013 617.0-IFA:617.81
Navigation	Previous Page / Next Page
Following Datasheets	aifa0310e_2 (2 pages) aifa0311e_2 (2 pages) aifa0312e_2 (2 pages) aifa0321e_1 (2 pages) aifa0322e_1 (2 pages) aifa0335e (2 pages) aifa0336e (2 pages) aifa0337e (2 pages) aifa0339e (2 pages) aifa0340e (2 pages)
Check in e-portals	World-H-News Products Extensions Partners Automation Jet Parts
Sitemap Folder	group1 group2 group3 group4 group5 group6 group7 group8 group9 group10 group11 group12 group13 group14 group15 group16 group17 group18 group19 group20 group21 group22 group23 group24 group25 group26 group27 group28 group29 group30 group31 group32 group33 group34 group35 group36 group37 group38 group39 group40 group41 group42 group43 group44 group45 group46 group47 group48 group49 group50 group51 group52 group53 group54 group55 group56 group57 group58 group59 group60 group61 group62 group63 group64 group65 group66 group67 group68 group69 group70 group71 group72 group73 group74 group75 group76 group77 group78 group79 group80 group81 group82 group83 group84 group85 group86 group87 group88 group89 group90 group91 group92 group93 group94 group95 group96 group97 group98 group99 group100 Prewious Folder Next Folder