The effects of lifting frequency on the dynamics of lifting.
Mirka GA; Kelaher DP
Proceedings of the Human Factors and Ergonomics Society 39th Annual Meeting, October 9-13, 1995, San Diego, California, Designing for the Global Village. Santa Monica, CA: Human Factors and Ergonomics Society, 1995 Oct; 39(Ind Erg):650-654
The goal of this study was to quantify the effects of different lifting frequencies (3, 6, and 9 lifts/minute) at different lifting heights (30 and 60 cm) on the kinematics of the lumbar region. Each of these lifting tasks was performed for twenty minutes. The time dependent traces of both the mean and standard deviation of sagittal acceleration showed subject dependent trends over time. Averaged across time, the results of this study reveal that there is a non-linear increase in the sagittal acceleration with greater frequency of lifting.
Manual-materials-handling; Manual-lifting; Musculoskeletal-system-disorders; Biomechanics; Ergonomics
Gary A. Mirka, Ergonomics Laboratory, Department of Industrial Engineering, North Carolina State University, Raleigh, North Carolina
Issue of Publication
Musculoskeletal System Disorders
Proceedings of the Human Factors and Ergonomics Society 39th Annual Meeting, October 9-13, 1995, San Diego, California, Designing for the Global Village
Department of Industrial Engineering, College of Engineering, North Carolina State University