We investigated the physiological and psychological changes during transfer in order to compare the differences of nurses' load in two transfer techniques. Subjects were 13 normal healthy students aged between 20 to 21 years. One healthy student acted as a simulation patient. Two transfer techniques (named "A" and "B" ) were compared. "A" is a traditional technique according to a textbook, "Fundamentals of Nursing Technique"; and "B" is a relatively new technique according to "Kamiya's method". Ten trials of transfer were performed in both techniques. Integrations of electromyographs (IEMG) of the left and right muscles of the Biceps Brachi (BB) and the left and right muscles of the Paravertebrals (PV), and heart rate (HR) were measured as physiological parameters. The visual analog scale (VAS) about fatigue of whole body, both the upper arms and the low back were also measured as the psychological parameters.
Results were as follows.
1. IEMGs of all trial in technique B were significantly less than that in technique A except for the right PV. Summation values of ten trials of IEMGs in technique B were also significantly less than that in technique A except for at right PV.
2. Increase ratio of HR by transfer in technique B was significantly less than that in technique A.
3. VAS scores of fatigue of the whole body, the right upper arm, and the low back in technique B were significantly smaller than that in technique A.
These results suggests that technique B method is less on the nurses' load compared with technique A.
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