Determination of muscular fatigue

Article Abstract:

An electromyographical fatigue analysis of four surgeons during 14 urological operations, employing direct endoscopic technique, shows the development of fatigue in the surgeons' right trapezius muscle. Muscular fatigue develops during the latter part of the operations. An increase in the electrical activity and the spectral shift towards lower frequencies indicate the development of muscular fatigue. A new method for joint analysis of the spectrum and electromyogram (EMG) amplitude allows the cause of the EMG changes, such as fatigue or force, to be identified.

Usage, Observations, Fatigue, Electromyography, Endoscopic surgery

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Influence of the operating technique on muscular strain

Article Abstract:

An electromyographical study of four surgeons in 15 urological operations shows that monitor endoscopy produces less muscular strain on the surgeons than direct endoscopy method. The myoelectrical activity of both trapezius muscles and right deltoideus muscle occurs in the case of monitor endoscopy. The difference in the muscular strain is due to the different posture and surgical technique involved in the two endoscopic methods. No specific result was obtained for the myoelectrical activity of the erector spinae muscle.

Injuries, Surgery

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Logistical and ergonomic transportation capacity for refuse collection workers: a work physiology study

Article Abstract:

A work physiology study was conducted to examine logistical and ergonomic transportation capacity for refuse collectors. The study analyzed and recorded work flow and the electrocardiogram for six male garbage collectors. Work rates (WR) and work pulse rates (WPR) were measured from the study. Results show that WPR increased with the WR. In addition, health protection of the workers required the limitation of refuse container handling to ergonomic transportation capacity.

Health aspects, Transportation, Sanitation workers

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