The effects of age, fitness, and health on the passive stiffness of the intact low back and its impact on seated work in a healthy, working, female population.
Tara L Diesbourg, Andrea Hemmerich, Geneviève A Dumas
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引用次数: 0
Abstract
Age is associated with increased tissue stiffness and a higher risk of low back pain, particularly in older, sedentary workers who spend long periods sitting. This study explored how trunk stiffness changes with age and its relationship with posture during prolonged sitting in a sample of 37 women aged 20-65 years. Age was assessed as both Chronological Age and Fitness Age, with trunk stiffness measured using a passive trunk flexion apparatus. Participants sat at a computer workstation for 60 minutes, and spine posture was recorded every 10 minutes. The study found that trunk stiffness significantly increased with age, especially when considering Fitness Age (r = 0.517, p = 0.003). Additionally, trunk stiffness was negatively correlated with spine motion during sitting (r = -0.435, p = 0.023). These findings suggest that workers with poorer health move less while sitting and could be more susceptible to the deleterious effects of sedentary work.
期刊介绍：
Ergonomics, also known as human factors, is the scientific discipline that seeks to understand and improve human interactions with products, equipment, environments and systems. Drawing upon human biology, psychology, engineering and design, Ergonomics aims to develop and apply knowledge and techniques to optimise system performance, whilst protecting the health, safety and well-being of individuals involved. The attention of ergonomics extends across work, leisure and other aspects of our daily lives.
The journal Ergonomics is an international refereed publication, with a 60 year tradition of disseminating high quality research. Original submissions, both theoretical and applied, are invited from across the subject, including physical, cognitive, organisational and environmental ergonomics. Papers reporting the findings of research from cognate disciplines are also welcome, where these contribute to understanding equipment, tasks, jobs, systems and environments and the corresponding needs, abilities and limitations of people.
All published research articles in this journal have undergone rigorous peer review, based on initial editor screening and anonymous refereeing by independent expert referees.
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