Susan Stock|Rita de Cássia Pereira Fernandes|Alain Delisle|Nicole Vézina
Reproducibility and validity of workers’ self-reports of physical work demands
Institut National de Santé Publique du Québec|McGill University|Universidade Federal da Bahia|Institut de Recherche Robert-Sauvé en Santé et en Sécurité du Travail|Université du Québec à Montréal
objective paper provide systematic review reproducibility validity selfreport questions concerning physical work demandsafter bibliographic search medline ergonomic abstracts 19802003 15 articles meeting eligibility criteria reviewed methodological quality 82 formulations questions physical work demands evaluated reproducibility 83 validityquestions evaluated reproducibility validity performed well sets studies included duration presence sitting standing posture presence walking kneeling squatting postures duration frequency hands shoulders manual handling less 10 kg general level physical effort presence duration wholebody vibration duration use visual display terminalssuggestions improving design reproducibility validity studies directions future research physical workload measurement proposed