Details:

Alternative Title:
Int J Ind Ergon
Personal Author:
Oyama, Sakiko ; Sosa, Araceli ; Campbell, Rebekah ; Ortega, Catherine ; Douphrate, David I.
Oyama, Sakiko ; Sosa, Araceli ; Campbell, Rebekah ; Ortega, Catherine ; Douphrate, David I. Less -
Description:
The objective of the study was to evaluate the effects of udder height on upper body kinematics and muscle activity during a simulated attachment task in a parallel parlor set up, and the effects of udder access method (back or side) on the task biomechanics. Twenty males performed the task under conditions that simulated three udder heights and two udder access methods. The muscular load and kinematics during the task confirmed that milking is a physically demanding task. Trunk flexion angle increased with decreasing udder height, and the erector spinae activation was higher when the udder was below shoulder height compared to at or above. Compared to accessing the udder from side of the cow (herringbone parlor style), accessing from behind (Parallel parlor style) was associated with lower trunk flexion, greater shoulder horizontal adduction, lower shoulder elevation, and greater anterior deltoid activation. Milking in herringbone parlor style and with the udder at or above shoulder level may help reduce strain on the trunk/neck.
Subjects:
[+]
Article Dairy Farm Ergonomics Scapular Kinematics
Source:
Int J Ind Ergon. 61:101-106
Pubmed ID:
36060530
Pubmed Central ID:
PMC9434597
Document Type:
Journal Article
Funding:
U50 OH008085/OH/NIOSH CDC HHSUnited States/
Collection(s):
CDC Public Access
Main Document Checksum:
[+]
urn:sha256:fec7cc9b84734785441f06402def0c721f6b3e71011dc6f17332a94f91b359f6
Download URL:
https://stacks.cdc.gov/view/cdc/120914/cdc_120914_DS1.pdf
File Type:

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