Effects of general principles of person transfer techniques on low back joint extension moment.

The purpose of this study was to examine the effects of general principles of person transfer techniques specifically on the low back joint extension moment. These effects were examined by the following measurable quantitative parameters: 1) trunk bending angle, 2) knee flexion angle, 3) distance between the centers of gravity (COGs) of the caregiver and patient, representing the distance between the caregiver and patient, and 4) the vertical component of the ground reaction force representing the amount of the weight-bearing load on the caregiver's low back during transfers with and without assistive devices. Twenty students each took the role of caregiver, and one healthy adult simulated a patient. The participants performed three different transfer tasks: without any assistive device, with the patient wearing a low back belt, and with the caregiver using a transfer board. We found that the distance between the COGs and the vertical component of the ground reaction force, but not the trunk bending and knee flexion angles, were the variables that affected the low back joint extension moment. Our results suggest that the general principle of decreasing the distance between COGs is most effective for decreasing the low back joint extension moment during transfers under all conditions.

[1]  F Bell,et al.  Hospital ward patient-lifting tasks. , 1979, Ergonomics.

[2]  Norihisa Fujii,et al.  BODY SEGMENT INERTIA PROPERTIES OF JAPANESE ELDERLY , 1996 .

[3]  S Pheasant,et al.  Back pain in nurses: epidemiology and risk assessment. , 1992, Applied ergonomics.

[4]  M Gagnon,et al.  Lumbo-sacral loads and selected muscle activity while turning patients in bed. , 1987, Ergonomics.

[5]  Nobutoshi Yamazaki,et al.  Measurement of transferring motions and evaluation of caregiver's lower-back load. , 2002 .

[6]  Junji Katsuhira,et al.  Comparison of low back joint moment using a dynamic 3D biomechanical model in different transferring tasks wearing low back belt. , 2008, Gait & posture.

[7]  W. Marras,et al.  A comprehensive analysis of low-back disorder risk and spinal loading during the transferring and repositioning of patients using different techniques. , 1999, Ergonomics.

[8]  M P de Looze,et al.  Please Scroll down for Article Ergonomics Muscle Strength, Task Performance and Low Back Load in Nurses M Uscle Strength, Task Performance and Low Back Load in Nurses , 2022 .

[9]  A Garg,et al.  Revised NIOSH equation for the design and evaluation of manual lifting tasks. , 1993, Ergonomics.

[10]  Takenobu Inoue,et al.  LOWER BACK LOADS DURING MANEUVERING TASKS WITH LIFTING DEVICES , 2000 .

[11]  B Schibye,et al.  Biomechanical analysis of the effect of changing patient-handling technique. , 2003, Applied ergonomics.

[12]  I. Kingma,et al.  Low-back loading in lifting two loads beside the body compared to lifting one load in front of the body. , 2009, Journal of biomechanics.

[13]  J H Skotte,et al.  Estimation of low back loading on nurses during patient handling tasks: the importance of bedside reaction force measurement. , 2001, Journal of biomechanics.

[14]  Lars Lindbeck,et al.  Biomechanical analysis of two patient handling tasks , 1993 .

[15]  Idsart Kingma,et al.  Foot positioning instruction, initial vertical load position and lifting technique: effects on low back loading , 2004, Ergonomics.

[16]  J H van Dieën,et al.  Lumbar loading during lifting: a comparative study of three measurement techniques. , 2001, Journal of electromyography and kinesiology : official journal of the International Society of Electrophysiological Kinesiology.

[17]  J H van Dieën,et al.  Stoop or squat: a review of biomechanical studies on lifting technique. , 1999, Clinical biomechanics.

[18]  David A. Winter,et al.  Biomechanics and Motor Control of Human Movement , 1990 .

[19]  Monique Lortie,et al.  Examination of biomechanical principles in a patient handling task , 1988 .

[20]  P Harber,et al.  Occupational low-back pain in hospital nurses. , 1985, Journal of occupational medicine. : official publication of the Industrial Medical Association.

[21]  I. Kingma,et al.  Can low back loading during lifting be reduced by placing one leg beside the object to be lifted? , 2006, Physical therapy.

[22]  O. Schipplein,et al.  The Influence of Initial Horizontal Weight Placement on the Loads at the Lumbar Spine While Lifting , 1995, Spine.

[23]  D. Anton.  Occupational biomechanics , 1986 .

[24]  B Schibye,et al.  A dynamic 3D biomechanical evaluation of the load on the low back during different patient-handling tasks. , 2002, Journal of biomechanics.