caa a22 4500 469055634 CHVBK 20180323132843.0 cr unu---uuuuu 170328e19920901xx s 000 0 eng 10.1007/BF00625058 doi (NATIONALLICENCE)springer-10.1007/BF00625058 Effect of arm-shoulder fatigue on carpenters at work [Elektronische Daten] [Eva Hammarskjöld, Karin Harms-Ringdahl] Summary: The purpose of the study was to analyse the effect of arm-shoulder fatigue on manual performance. Ten experienced carpenters performed three standardized tasks (nailing, sawing and screwing). Electromyographic activity was recorded from six arm-shoulder muscles and the performances were video-filmed. After 45 min of standardized arm-cranking (arm-shoulder-fatiguing exercise of approximately 70%-80% maximal oxygen consumption), the tasks were repeated. The number of work movements and the time taken for each task were recorded and the quality of the work performed was compared. After the fatiguing exercise, only nailing was perceived as being harder and more mistakes were made during nailing and sawing. Movement performance was not influenced during nailing but was slightly slower during sawing and faster during screwing. However, there were increased mean EMG amplitudes in the upper trapezius and biceps muscles during nailing, in the upper trapezius, anterior deltoid and infraspinatus muscles during sawing and in the anterior deltoid muscle during screwing. Of the muscles studied the upper trapezius and anterior deltoid muscles increased their activity most after the arm-shoulder-fatiguing exercise. Springer-Verlag, 1992 Manual performance nationallicence Electromyogram nationallicence Arm-cranking nationallicence Rating of perceived exertion nationallicence Muscle fatigue nationallicence Hammarskjöld Eva Kinesiology Research Group, Departments of Physical Medicine and Rehabilitation and of Anatomy, Karolinska Institute, PO Box 60500, S-10401, Stockholm, Sweden aut Harms-Ringdahl Karin Kinesiology Research Group, Departments of Physical Medicine and Rehabilitation and of Anatomy, Karolinska Institute, PO Box 60500, S-10401, Stockholm, Sweden aut European Journal of Applied Physiology and Occupational Physiology Springer-Verlag 64/5(1992-09-01), 402-409 0301-5548 64:5<402 1992 64 421 https://doi.org/10.1007/BF00625058 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00625058 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Hammarskjöld Eva Kinesiology Research Group, Departments of Physical Medicine and Rehabilitation and of Anatomy, Karolinska Institute, PO Box 60500, S-10401, Stockholm, Sweden aut NATIONALLICENCE 700 1- Harms-Ringdahl Karin Kinesiology Research Group, Departments of Physical Medicine and Rehabilitation and of Anatomy, Karolinska Institute, PO Box 60500, S-10401, Stockholm, Sweden aut NATIONALLICENCE 773 0- European Journal of Applied Physiology and Occupational Physiology Springer-Verlag 64/5(1992-09-01), 402-409 0301-5548 64:5<402 1992 64 421 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer