@article{oai:kanazawa-u.repo.nii.ac.jp:00013992, author = {Kyota, Kaoru and Tsukasaki, Keiko and Nomura, Atsuko}, issue = {4}, journal = {Journal of Physical Therapy Science}, month = {Apr}, note = {[Purpose] Muscle activities and subjective evaluations were compared while changing diapers at various bed heights to investigate working techniques and bed heights for reducing low back load. [Subjects] The subjects were 21 skilled caregivers. [Methods] Bed height was adjusted to the level at which the subjects usually changed diapers, their preferred level, and 45% of the subject's height. The activities of eight muscles and subjective evaluation were compared among the various heights. [Results] The bed height at which subjects usually changed diapers was 51.7 cm, the preferred bed height was 63.4 cm, and 45% of subjects'height was 71.0 cm, showing significant differences. Right erector spinae activities were significantly different among three heights, as were subjective evaluations. The diaper-changing fulcrum differed: it was set at the thighs and knees at the routine height; at the thighs, knees, and lower abdominal region at the preferred height; and at the thighs at 45% of the subject's height. [Conclusions] Skilled caregivers mastered adjustment of the diaper-changing fulcrum corresponding to the bed height. It was also suggested that the erector spinae muscle activity level and subjective low back load may not be consistent when 45% of the subject's height.}, pages = {469--475}, title = {Low back load produced by changing a diaper at various bed heights experienced by female care workers in a nursing home}, volume = {25}, year = {2013} }