Laboratory evaluation of belt usage with apple buckets

Guilia Earle-Richardson, Paul L. Jenkins, Andris Freivalds, Patrick Burdick, Shihyun Park, Cheol Lee, Christine Mason, John J. May

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

Background: Migrant and seasonal orchard harvest workers experience musculoskeletal strain caused by carrying heavy loads and holding awkward postures. An ergonomic hip belt designed to redistribute weight from the upper back, neck, and shoulders to the hips was evaluated. Methods: A comparison of muscle exertion (using electromyography [EMG]) of four key back and shoulder muscles and shoulder surface pressure (using a surface pressure sensor [PS]) was made among 10 laboratory volunteers under intervention and control conditions, in two postures (standing erect [0°]) and flexed [45°]). Results: All but one measure showed a significant reduction in the flexed posture with the intervention. Two of eight measures showed a significant reduction in the erect posture. Correlations with shoulder discomfort were found for deep shoulder EMG (r = 0.71, P = 0.021) and shoulder surface pressure (r = 0.58, P = 0.082). Conclusions: The hip belt intervention produces significant reductions in muscle activity while in a posture commonly assumed during orchard work.

Original languageEnglish (US)
Pages (from-to)23-29
Number of pages7
JournalAmerican Journal of Industrial Medicine
Volume49
Issue number1
DOIs
StatePublished - Jan 1 2006

Fingerprint

Malus
Posture
Hip
Electromyography
Pressure
Back Muscles
Muscles
Human Engineering
Volunteers
Neck
Weights and Measures

All Science Journal Classification (ASJC) codes

  • Public Health, Environmental and Occupational Health

Cite this

Earle-Richardson, G., Jenkins, P. L., Freivalds, A., Burdick, P., Park, S., Lee, C., ... May, J. J. (2006). Laboratory evaluation of belt usage with apple buckets. American Journal of Industrial Medicine, 49(1), 23-29. https://doi.org/10.1002/ajim.20239
Earle-Richardson, Guilia ; Jenkins, Paul L. ; Freivalds, Andris ; Burdick, Patrick ; Park, Shihyun ; Lee, Cheol ; Mason, Christine ; May, John J. / Laboratory evaluation of belt usage with apple buckets. In: American Journal of Industrial Medicine. 2006 ; Vol. 49, No. 1. pp. 23-29.
@article{1ed41fb9cf054b1d9eca94ff1eee020a,
title = "Laboratory evaluation of belt usage with apple buckets",
abstract = "Background: Migrant and seasonal orchard harvest workers experience musculoskeletal strain caused by carrying heavy loads and holding awkward postures. An ergonomic hip belt designed to redistribute weight from the upper back, neck, and shoulders to the hips was evaluated. Methods: A comparison of muscle exertion (using electromyography [EMG]) of four key back and shoulder muscles and shoulder surface pressure (using a surface pressure sensor [PS]) was made among 10 laboratory volunteers under intervention and control conditions, in two postures (standing erect [0°]) and flexed [45°]). Results: All but one measure showed a significant reduction in the flexed posture with the intervention. Two of eight measures showed a significant reduction in the erect posture. Correlations with shoulder discomfort were found for deep shoulder EMG (r = 0.71, P = 0.021) and shoulder surface pressure (r = 0.58, P = 0.082). Conclusions: The hip belt intervention produces significant reductions in muscle activity while in a posture commonly assumed during orchard work.",
author = "Guilia Earle-Richardson and Jenkins, {Paul L.} and Andris Freivalds and Patrick Burdick and Shihyun Park and Cheol Lee and Christine Mason and May, {John J.}",
year = "2006",
month = "1",
day = "1",
doi = "10.1002/ajim.20239",
language = "English (US)",
volume = "49",
pages = "23--29",
journal = "American Journal of Industrial Medicine",
issn = "0271-3586",
publisher = "Wiley-Liss Inc.",
number = "1",

}

Earle-Richardson, G, Jenkins, PL, Freivalds, A, Burdick, P, Park, S, Lee, C, Mason, C & May, JJ 2006, 'Laboratory evaluation of belt usage with apple buckets', American Journal of Industrial Medicine, vol. 49, no. 1, pp. 23-29. https://doi.org/10.1002/ajim.20239

Laboratory evaluation of belt usage with apple buckets. / Earle-Richardson, Guilia; Jenkins, Paul L.; Freivalds, Andris; Burdick, Patrick; Park, Shihyun; Lee, Cheol; Mason, Christine; May, John J.

In: American Journal of Industrial Medicine, Vol. 49, No. 1, 01.01.2006, p. 23-29.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Laboratory evaluation of belt usage with apple buckets

AU - Earle-Richardson, Guilia

AU - Jenkins, Paul L.

AU - Freivalds, Andris

AU - Burdick, Patrick

AU - Park, Shihyun

AU - Lee, Cheol

AU - Mason, Christine

AU - May, John J.

PY - 2006/1/1

Y1 - 2006/1/1

N2 - Background: Migrant and seasonal orchard harvest workers experience musculoskeletal strain caused by carrying heavy loads and holding awkward postures. An ergonomic hip belt designed to redistribute weight from the upper back, neck, and shoulders to the hips was evaluated. Methods: A comparison of muscle exertion (using electromyography [EMG]) of four key back and shoulder muscles and shoulder surface pressure (using a surface pressure sensor [PS]) was made among 10 laboratory volunteers under intervention and control conditions, in two postures (standing erect [0°]) and flexed [45°]). Results: All but one measure showed a significant reduction in the flexed posture with the intervention. Two of eight measures showed a significant reduction in the erect posture. Correlations with shoulder discomfort were found for deep shoulder EMG (r = 0.71, P = 0.021) and shoulder surface pressure (r = 0.58, P = 0.082). Conclusions: The hip belt intervention produces significant reductions in muscle activity while in a posture commonly assumed during orchard work.

AB - Background: Migrant and seasonal orchard harvest workers experience musculoskeletal strain caused by carrying heavy loads and holding awkward postures. An ergonomic hip belt designed to redistribute weight from the upper back, neck, and shoulders to the hips was evaluated. Methods: A comparison of muscle exertion (using electromyography [EMG]) of four key back and shoulder muscles and shoulder surface pressure (using a surface pressure sensor [PS]) was made among 10 laboratory volunteers under intervention and control conditions, in two postures (standing erect [0°]) and flexed [45°]). Results: All but one measure showed a significant reduction in the flexed posture with the intervention. Two of eight measures showed a significant reduction in the erect posture. Correlations with shoulder discomfort were found for deep shoulder EMG (r = 0.71, P = 0.021) and shoulder surface pressure (r = 0.58, P = 0.082). Conclusions: The hip belt intervention produces significant reductions in muscle activity while in a posture commonly assumed during orchard work.

UR - http://www.scopus.com/inward/record.url?scp=30544444600&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=30544444600&partnerID=8YFLogxK

U2 - 10.1002/ajim.20239

DO - 10.1002/ajim.20239

M3 - Article

C2 - 16362945

AN - SCOPUS:30544444600

VL - 49

SP - 23

EP - 29

JO - American Journal of Industrial Medicine

JF - American Journal of Industrial Medicine

SN - 0271-3586

IS - 1

ER -