The Effects of Age and Initial Shoulder Posture on the Upper Limb Range of Harvesting Movements among Oil Palm Harvesters

The occurrence of musculoskeletal diseases (MSDs) among oil palm harvesters has been studied extensively, but there is a lack of published studies on the evaluation of the range of harvesting movements. This information is important to design the ergonomic tools needed in the manual harvesting of oi...

Descripción completa

Guardado en:
Detalles Bibliográficos
Autores principales: Nelson Pady Tumit, Azmin Sham Rambely, Baba Md Deros
Formato: article
Lenguaje:EN
Publicado: MDPI AG 2021
Materias:
T
Acceso en línea:https://doaj.org/article/e8ada48c93bc4117a88c45250e47678b
Etiquetas: Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
id oai:doaj.org-article:e8ada48c93bc4117a88c45250e47678b
record_format dspace
spelling oai:doaj.org-article:e8ada48c93bc4117a88c45250e47678b2021-11-11T15:18:57ZThe Effects of Age and Initial Shoulder Posture on the Upper Limb Range of Harvesting Movements among Oil Palm Harvesters10.3390/app1121102802076-3417https://doaj.org/article/e8ada48c93bc4117a88c45250e47678b2021-11-01T00:00:00Zhttps://www.mdpi.com/2076-3417/11/21/10280https://doaj.org/toc/2076-3417The occurrence of musculoskeletal diseases (MSDs) among oil palm harvesters has been studied extensively, but there is a lack of published studies on the evaluation of the range of harvesting movements. This information is important to design the ergonomic tools needed in the manual harvesting of oil palm. We examined the upper limb motion of oil palm harvesters to determine the effects of age and initial shoulder postures on their range of harvesting movements. Twenty male harvesters performed a manual push-pull-cutting technique (≥3 m fresh fruit branches (FFBs) height). The study was conducted by capturing the 1-D push-pull cutting technique harvesting movement via the Quintic system at the sagittal plane. The active range of harvesting movements during the harvesting phases and the range of the harvesting movement of the initial and maximum postures of their upper arms were calculated based on the kinematic data generated with the Quintic Biomechanics system (Version 29). Participants were divided into three groups based on their age, and two groups based on their initial support shoulder position, and dominant shoulder position. Data were analysed using the ANOVA and <i>t</i>-test. The joint movement angle pattern of the harvesters was classified into three phases: preparation, execution, and ending. The age-related variances for the initial and maximum support shoulder postures were determined. The range of harvesting movements and the active range of harvesting movements during the preparation phase at the support shoulder and wrist region were also observed. The initial support shoulder posture displayed a statistical variance in the maximum support and dominant range of harvesting movements of the shoulder. It was also linked to a reduced active range of harvesting movements for the support shoulder flexion and dominant wrist ulnar deviation at the preparation phase. Furthermore, the initial dominant shoulder exhibited a statistically significant difference for the dominant arm and a reduced active range of harvesting movements in the dominant wrist ulnar deviation at the preparation phase. This study produced important evidence about factors to be considered for the ergonomic design of harvesting tools and workplaces, especially within the oil palm industry.Nelson Pady TumitAzmin Sham RambelyBaba Md DerosMDPI AGarticlemusculoskeletal disorders (MSDs)oil palm harvestersactive range of harvesting movementsupper armQuintic Biomechanics systemTechnologyTEngineering (General). Civil engineering (General)TA1-2040Biology (General)QH301-705.5PhysicsQC1-999ChemistryQD1-999ENApplied Sciences, Vol 11, Iss 10280, p 10280 (2021)
institution DOAJ
collection DOAJ
language EN
topic musculoskeletal disorders (MSDs)
oil palm harvesters
active range of harvesting movements
upper arm
Quintic Biomechanics system
Technology
T
Engineering (General). Civil engineering (General)
TA1-2040
Biology (General)
QH301-705.5
Physics
QC1-999
Chemistry
QD1-999
spellingShingle musculoskeletal disorders (MSDs)
oil palm harvesters
active range of harvesting movements
upper arm
Quintic Biomechanics system
Technology
T
Engineering (General). Civil engineering (General)
TA1-2040
Biology (General)
QH301-705.5
Physics
QC1-999
Chemistry
QD1-999
Nelson Pady Tumit
Azmin Sham Rambely
Baba Md Deros
The Effects of Age and Initial Shoulder Posture on the Upper Limb Range of Harvesting Movements among Oil Palm Harvesters
description The occurrence of musculoskeletal diseases (MSDs) among oil palm harvesters has been studied extensively, but there is a lack of published studies on the evaluation of the range of harvesting movements. This information is important to design the ergonomic tools needed in the manual harvesting of oil palm. We examined the upper limb motion of oil palm harvesters to determine the effects of age and initial shoulder postures on their range of harvesting movements. Twenty male harvesters performed a manual push-pull-cutting technique (≥3 m fresh fruit branches (FFBs) height). The study was conducted by capturing the 1-D push-pull cutting technique harvesting movement via the Quintic system at the sagittal plane. The active range of harvesting movements during the harvesting phases and the range of the harvesting movement of the initial and maximum postures of their upper arms were calculated based on the kinematic data generated with the Quintic Biomechanics system (Version 29). Participants were divided into three groups based on their age, and two groups based on their initial support shoulder position, and dominant shoulder position. Data were analysed using the ANOVA and <i>t</i>-test. The joint movement angle pattern of the harvesters was classified into three phases: preparation, execution, and ending. The age-related variances for the initial and maximum support shoulder postures were determined. The range of harvesting movements and the active range of harvesting movements during the preparation phase at the support shoulder and wrist region were also observed. The initial support shoulder posture displayed a statistical variance in the maximum support and dominant range of harvesting movements of the shoulder. It was also linked to a reduced active range of harvesting movements for the support shoulder flexion and dominant wrist ulnar deviation at the preparation phase. Furthermore, the initial dominant shoulder exhibited a statistically significant difference for the dominant arm and a reduced active range of harvesting movements in the dominant wrist ulnar deviation at the preparation phase. This study produced important evidence about factors to be considered for the ergonomic design of harvesting tools and workplaces, especially within the oil palm industry.
format article
author Nelson Pady Tumit
Azmin Sham Rambely
Baba Md Deros
author_facet Nelson Pady Tumit
Azmin Sham Rambely
Baba Md Deros
author_sort Nelson Pady Tumit
title The Effects of Age and Initial Shoulder Posture on the Upper Limb Range of Harvesting Movements among Oil Palm Harvesters
title_short The Effects of Age and Initial Shoulder Posture on the Upper Limb Range of Harvesting Movements among Oil Palm Harvesters
title_full The Effects of Age and Initial Shoulder Posture on the Upper Limb Range of Harvesting Movements among Oil Palm Harvesters
title_fullStr The Effects of Age and Initial Shoulder Posture on the Upper Limb Range of Harvesting Movements among Oil Palm Harvesters
title_full_unstemmed The Effects of Age and Initial Shoulder Posture on the Upper Limb Range of Harvesting Movements among Oil Palm Harvesters
title_sort effects of age and initial shoulder posture on the upper limb range of harvesting movements among oil palm harvesters
publisher MDPI AG
publishDate 2021
url https://doaj.org/article/e8ada48c93bc4117a88c45250e47678b
work_keys_str_mv AT nelsonpadytumit theeffectsofageandinitialshoulderpostureontheupperlimbrangeofharvestingmovementsamongoilpalmharvesters
AT azminshamrambely theeffectsofageandinitialshoulderpostureontheupperlimbrangeofharvestingmovementsamongoilpalmharvesters
AT babamdderos theeffectsofageandinitialshoulderpostureontheupperlimbrangeofharvestingmovementsamongoilpalmharvesters
AT nelsonpadytumit effectsofageandinitialshoulderpostureontheupperlimbrangeofharvestingmovementsamongoilpalmharvesters
AT azminshamrambely effectsofageandinitialshoulderpostureontheupperlimbrangeofharvestingmovementsamongoilpalmharvesters
AT babamdderos effectsofageandinitialshoulderpostureontheupperlimbrangeofharvestingmovementsamongoilpalmharvesters
_version_ 1718435401811623936