Upper extremity muscular load during machine milking

Stål, Marianne; Hansson, Gert–Åke; Moritz, Ulrich

doi:10.1016/s0169-8141(99)00059-1

Cited by 42 publications

(39 citation statements)

References 19 publications

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“…It is noteworthy that this article also had the highest scientific recognition. Another article by the same author, which was also the third most relevant article with six citations in the references of the BP, "Upper muscle extremity load during machine milking" [18], quantified muscle load on the upper extremities (upper body) of 11 workers who performed the milking activity. The study aimed sat understanding the etiology of musculoskeletal problems in the forearm and hand, while simultaneously focusing attention on the involvement of the nerves.…”

Section: Scientific Recognition Of Articles In the Bibliographic Portmentioning

confidence: 99%

Ergonomic evaluation of workload by milk production – a bibliometric analysis

Oliveira

Moro

Ulbricht

et al. 2017

Ann Agric Environ Med.

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Introduction and Objective. The purpose of this study was to select in a structured manner the relevant articles with scientific recognition, and simultaneously identify the characteristics of these publications that may scientifically enrich the theme in a portfolio of papers. The theme involves ergonomics in milk production as a criterion for evaluating and improving organizational performance in the milking sector. Materials and Method. The study used ProKnow-C as a theoretical instrument for intervention. Results. The main results show: i) a bibliographic portfolio of 18 items aligned with the view adopted by researchers which served as a theoretical framework for this research; ii) The article entitled "Wrist positions and movements as possible risk factors during machine milking", by Marianne Stål, Gert-Åke Hansson and Ulrich Moritz in 1999 and published in the Journal of Applied Ergonomics presented the highest scientific recognition, iii) the authors highlighted in the bibliographic portfolio or in its references researching the subject are Gert-Åke Hansson, Marianne Stål and Stefan Pinzke, and iv) the International Journal of Industrial Ergonomics shows the highest number of scientific articles in the bibliographic portfolio. Conclusions. The studies selected using the methodology indicate research in ergonomics focused on the production of milk in rural areas, specifically in the milking sector, are generally related to the health and safety of the workers.

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Section: Scientific Recognition Of Articles In the Bibliographic Portmentioning

confidence: 99%

Ergonomic evaluation of workload by milk production – a bibliometric analysis

Oliveira

Moro

Ulbricht

et al. 2017

Ann Agric Environ Med.

View full text Add to dashboard Cite

show abstract

“…For the wrist extensors, the subject was asked to contract the forearm in the pronated position, enabling the palpation and identification of the muscle 18 . For the biceps brachii, the electrodes were attached at a third of the distance between the cubital fossa and the acromion 19 .…”

Section: Record Of Muscle Electrical Activity Of Upper Limbsmentioning

confidence: 99%

30o inclination in handles of plastic boxes can reduce postural and muscular workload during handling

Silva

Oliveira

Silva

et al. 2013

Braz. J. Phys. Ther.

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| Background: The handling of materials, which occurs in the industrial sector, is associated with lesions on the lumbar spine and in the upper limbs. Inserting handles in industrial boxes is a way to reduce work-related risks. Although the position and angle of the handles are significant factors in comfort and safety during handling, these factors have rarely been studied objectively. Objective: To compare the handling of a commercial box and prototypes with handles and to evaluate the effects on upper limb posture, muscle electrical activity, and perceived acceptability using different grips while handling materials from different heights. Method: Thirty-seven healthy volunteers evaluated the handles of prototypes that allowed for changes in position (top and bottom) and angle (0°, 15°, and 30°). Wrist, elbow, and shoulder movements were evaluated using electrogoniometry and inclinometry. The muscle electrical activity in the wrist extensors, biceps brachii, and the upper portion of the trapezius was measured using a portable electromyographer. The recorded data on muscle movements and electrical activity were synchronized. Subjective evaluations of acceptability were evaluated using a visual analog scale. Results and Conclusions: The prototypes with handles at a 30° angle produced the highest acceptability ratings, more neutral wrist positions, lower levels of electromyographic activity for the upper trapezius, and lower elevation angles for the arms. The different measurement methods were complementary in evaluating the upper limbs during handling.Keywords: ergonomic design; usability; electrogoniometry; electromyography; grip perception. HOW TO CITE THIS ARTICLESilva LCCB, Oliveira AB, Silva DC, Paschoarelli LC, Coury HJCG. 30° inclination in handles of plastic boxes can reduce postural and muscular workload during handling. Braz J Phys Ther. 2013 May-June; 17(3):307-318. http://dx

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“…Even though automation has proliferated in recent years, manual material handling is still common in agriculture. Many studies have identified its association with work-related musculoskeletal disorders (MSDs) in various kinds of agricultural work, such as a dairy farm [4,5,6,7,8,9,10,11,12,13], a swinery [14,15,16], a poultry farm [17,18,19], rice cultivation [20], and a pear and apple orchard [21]. These studies have confirmed that static awkward postures and repetitive movements of certain body segments are the risk factors of MSDs.…”

Section: Introductionmentioning

confidence: 96%

“…Work on a dairy farm, especially in a milking operation in a traditional tie stall, is associated with awkward postures and movements [7,13]. After an automatic parlor milking system is introduced, however, a dairy farmer's physical burden is generally reduced with respect to heart rate, working posture, and perceived exertion [9].…”

Section: Introductionmentioning

confidence: 99%

“…Nevala-Puranen, Kallionpää, and Ojanen reported that a dairy farmer worked with the back in a neutral position for 85% of the milking time in a parlor [8]. The new system is better for the back but not for the upper extremities because of the raised working height [10,12,13]. Nevala-Puranen et al found that a dairy farmer positioned the arms above the shoulder level for 24% of the milking time in a parlor, compared to 18% in a tie stall.…”

Section: Introductionmentioning

confidence: 99%

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