Développement d’un modèle statistique de prédiction de la durée de vie du rachis lombaire, dépendant de la contrainte appliquée, de l’âge et de la densité osseuse
Due to vertebral densimetric and structural inhomogeneity between individuals and the fact that bone strength varies with bone density and discontinuities within the trabecular lattice which changes with age, vertebral fatigue behavior cannot be considered as depending only on the cyclic stress. In...
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| Format: | Article |
| Language: | English |
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Institut de Recherche Robert-Sauvé en Santé et en Sécurité du Travail (IRSST)
2005-05-01
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| Series: | Perspectives Interdisciplinaires sur le Travail et la Santé |
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| Online Access: | https://journals.openedition.org/pistes/3202 |
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| _version_ | 1850147396021911552 |
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| author | Houcine Ayari Marc Thomas Sylvie Doré |
| author_facet | Houcine Ayari Marc Thomas Sylvie Doré |
| author_sort | Houcine Ayari |
| collection | DOAJ |
| description | Due to vertebral densimetric and structural inhomogeneity between individuals and the fact that bone strength varies with bone density and discontinuities within the trabecular lattice which changes with age, vertebral fatigue behavior cannot be considered as depending only on the cyclic stress. In this study, a lifetime prediction model is proposed for evaluating the number of cycles before damage as a function of the cyclic stress, bone density and age of the specimen. Due to their large dispersion, the results of the fatigue tests published by Brinckmann (1988) have been classified for analysis using the experiment design method. A nonlinear model presenting a coefficient of determination R2 of 94 % has been established. By comparing the values predicted by this model with the results of the fatigue tests conducted by Hansson (1987), a certain consistency can be noticed in the results. This study justifies the assumption that bone density and age in addition to cyclic stress have an effect on the fatigue of the rachis. |
| format | Article |
| id | doaj-art-251bdb08665e4ba6aea1fe26ed33a321 |
| institution | OA Journals |
| issn | 1481-9384 |
| language | English |
| publishDate | 2005-05-01 |
| publisher | Institut de Recherche Robert-Sauvé en Santé et en Sécurité du Travail (IRSST) |
| record_format | Article |
| series | Perspectives Interdisciplinaires sur le Travail et la Santé |
| spelling | doaj-art-251bdb08665e4ba6aea1fe26ed33a3212025-08-20T02:27:34ZengInstitut de Recherche Robert-Sauvé en Santé et en Sécurité du Travail (IRSST)Perspectives Interdisciplinaires sur le Travail et la Santé1481-93842005-05-017210.4000/pistes.3202Développement d’un modèle statistique de prédiction de la durée de vie du rachis lombaire, dépendant de la contrainte appliquée, de l’âge et de la densité osseuseHoucine AyariMarc ThomasSylvie DoréDue to vertebral densimetric and structural inhomogeneity between individuals and the fact that bone strength varies with bone density and discontinuities within the trabecular lattice which changes with age, vertebral fatigue behavior cannot be considered as depending only on the cyclic stress. In this study, a lifetime prediction model is proposed for evaluating the number of cycles before damage as a function of the cyclic stress, bone density and age of the specimen. Due to their large dispersion, the results of the fatigue tests published by Brinckmann (1988) have been classified for analysis using the experiment design method. A nonlinear model presenting a coefficient of determination R2 of 94 % has been established. By comparing the values predicted by this model with the results of the fatigue tests conducted by Hansson (1987), a certain consistency can be noticed in the results. This study justifies the assumption that bone density and age in addition to cyclic stress have an effect on the fatigue of the rachis.https://journals.openedition.org/pistes/3202bone densitydesign of experimentlumbar injuryvibration of the human bodylower back painfatigue |
| spellingShingle | Houcine Ayari Marc Thomas Sylvie Doré Développement d’un modèle statistique de prédiction de la durée de vie du rachis lombaire, dépendant de la contrainte appliquée, de l’âge et de la densité osseuse Perspectives Interdisciplinaires sur le Travail et la Santé bone density design of experiment lumbar injury vibration of the human body lower back pain fatigue |
| title | Développement d’un modèle statistique de prédiction de la durée de vie du rachis lombaire, dépendant de la contrainte appliquée, de l’âge et de la densité osseuse |
| title_full | Développement d’un modèle statistique de prédiction de la durée de vie du rachis lombaire, dépendant de la contrainte appliquée, de l’âge et de la densité osseuse |
| title_fullStr | Développement d’un modèle statistique de prédiction de la durée de vie du rachis lombaire, dépendant de la contrainte appliquée, de l’âge et de la densité osseuse |
| title_full_unstemmed | Développement d’un modèle statistique de prédiction de la durée de vie du rachis lombaire, dépendant de la contrainte appliquée, de l’âge et de la densité osseuse |
| title_short | Développement d’un modèle statistique de prédiction de la durée de vie du rachis lombaire, dépendant de la contrainte appliquée, de l’âge et de la densité osseuse |
| title_sort | developpement d un modele statistique de prediction de la duree de vie du rachis lombaire dependant de la contrainte appliquee de l age et de la densite osseuse |
| topic | bone density design of experiment lumbar injury vibration of the human body lower back pain fatigue |
| url | https://journals.openedition.org/pistes/3202 |
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