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[ Article ] Posture analysis of lifting a load for head
| Date de soumission: | 11-02-2017 |
|---|---|
| Année de Publication: | 2014 |
| Entité/Laboratoire | Autres Laboratoires |
| Document type : | Article |
| Discipline(s) : | Orthopédie, Rééducation & médécine sportive |
| Titre | Posture analysis of lifting a load for head |
|---|---|
| Auteurs | DUMAS Geneviève [1], |
| Journal: | Work |
| Catégorie Journal: | Internationale |
| Impact factor: | 0 |
| Volume Journal: | 47 |
| DOI: | DOI 10.3233/WOR-131686 |
| Resume | BACKGROUND: In Western Africa, women continue performing heavy physical work that includes carrying loads on their heads during pregnancy. Women may adapt to pregnancy related body changes by modifying their postures to perform such tasks. The objectives of this biomechanical task analysis study were to 1) determine sagittal plane postures of the trunk and upper extremities at specific events during the task of lifting and lowering a load to be carried on the head, 2) compare postures of pregnant and non-pregnant participants, 3) evaluate risk for musculo-skeletal disorders (MSD) with the rapid entire body assessment (REBA) criteria. PARTICIPANTS: Twenty-six pregnant (26 ± 5 years, 159 ± 9 cm, 63 ± 15 kg, 25 ± 9 weeks of pregnancy) and 25 paired non-pregnant retail merchants were recruited in Porto-Novo (Benin). METHODS: Participants were recorded on video in a laboratory setting while they lifted a tray (20% body weight) from a stool to their head and then put it back down. Trunk inclination and knee, shoulder and elbow flexion angles were determined using DartfishTM software. RESULTS: The trunk was bent by more than 80◦ at pick-up and set-down and knees were moderately flexed, significantly less (<11◦) for pregnant women, possibly because it was harder to lift the trunk, or for stability. For all postures analysed, the majority of trials were classified as “high” risk or “very high risk” for MSD. CONCLUSIONS: Future research should investigate prevalence of MSDs in this population to confirm the results of this study. |
| Mots clés | Musculoskeletal disorders, pregnancy, Africa |
| Pages | 63 - 72 |
| Fichier |  (PDF) |
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