Age-related changes in trunk and knee kinematics during lifting

作者：Song Jiahong; Qu Xingda

来源：57th Human Factors and Ergonomics Society Annual Meeting - 2013, HFES 2013, 2013-09-30 to 2013-10-04.

DOI：10.1177/1541931213571207

• Age-related changes
• Age-related differences
• Angular displacement
• Knee joint kinematics
• Knee kinematics
• Low back pain
• Lumbar spines
• Sagittal plane

This study examined the trunk and knee joint kinematics of younger and older people in lifting tasks. Five younger (20-26 years) and six older (58-70 years) participants performed a series of lifting tasks with different load weights in the sagittal plane. The angular displacements, velocities and accelerations of the lumbar spine and knee joint were calculated and analyzed to determine the age-related differences. The results showed the older participants had significantly decreased angular displacements, velocities and accelerations at lumbar spine and knee joint, and preferred a lifting strategy closer to stoop lifting compared with the younger participants. The age-related distinctions in the lifting strategy may result in increased risks of instability and low back pain for older workers during lifting tasks.

• 出版日期2013