지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2023.8
- 수록면
- 369 - 384 (16page)
- DOI
- 10.5143/JESK.2023.42.4.369
이용수
초록· 키워드
오류제보하기
Objective: The aim of this study was to evaluate the workloads of delivery workers when performing loading and unloading tasks for three types (a regular truck, a low-floor truck, which has a low loading height of cargo, and a new design EV lowfloor truck) of trucks.
Background: Recently, the physical and mental loads of delivery workers were increased, causing the risk of work-related musculoskeletal disorders (WMSDs) due to the rapidly increasing volumes of parcels from COVID-19 and the demand for low-floor trucks to access apartment parking lots.
Method: Ten adult men who had no musculoskeletal disorders were recruited and performed loading and unloading tasks of 5kg boxes for three types of trucks and three working zones for each truck in this study. The EMG was attached to the upper trapezius (UT), erector spinae (ES), rectus femoris (RF), biceps femoris (BF), tibialis anterior (TA), gastrocnemius (GAS), and the motion sensors were also attached to collect shoulder, back, and knee flexion angles. Subjective discomfort scores also be collected to compare pre- and post-task.
Results: As a result of the experiment, muscle activity decreased by about 8.2~22.4% when working the EV truck, except for the lumbar muscle. In the case of motion, the flexion angles of the shoulder and back also decreased 8.1~40.3% and 8.1~25.7%, respectively, for the EV truck. Although the back-flexion angles when one did tasks in regular and low-floor trucks were greater than that of the EV truck, the reason why the lumbar muscle activities were lower than that of the EV vehicle was explained by the flexion-relaxation phenomenon (FRP) in the discussion section. Subjective discomfort ratings for whole-body and local body parts (neck, shoulder, arm, back) also showed that EVs and regular trucks had better subjective ratings than low-floor trucks.
Conclusion: The workloads of delivery workers were less in the EV truck, which was newly designed than the regular and low-floor trucks based on the analyses of muscle activities, body flexion angles, and subjective ratings in this study.
Application: The findings of this study are expected to be used as data to provide information on the physical workloads of delivery workers in low-floor trucks and are also expected to be used as fundamental data for the evaluation process for various delivery vehicles in the future.
Background: Recently, the physical and mental loads of delivery workers were increased, causing the risk of work-related musculoskeletal disorders (WMSDs) due to the rapidly increasing volumes of parcels from COVID-19 and the demand for low-floor trucks to access apartment parking lots.
Method: Ten adult men who had no musculoskeletal disorders were recruited and performed loading and unloading tasks of 5kg boxes for three types of trucks and three working zones for each truck in this study. The EMG was attached to the upper trapezius (UT), erector spinae (ES), rectus femoris (RF), biceps femoris (BF), tibialis anterior (TA), gastrocnemius (GAS), and the motion sensors were also attached to collect shoulder, back, and knee flexion angles. Subjective discomfort scores also be collected to compare pre- and post-task.
Results: As a result of the experiment, muscle activity decreased by about 8.2~22.4% when working the EV truck, except for the lumbar muscle. In the case of motion, the flexion angles of the shoulder and back also decreased 8.1~40.3% and 8.1~25.7%, respectively, for the EV truck. Although the back-flexion angles when one did tasks in regular and low-floor trucks were greater than that of the EV truck, the reason why the lumbar muscle activities were lower than that of the EV vehicle was explained by the flexion-relaxation phenomenon (FRP) in the discussion section. Subjective discomfort ratings for whole-body and local body parts (neck, shoulder, arm, back) also showed that EVs and regular trucks had better subjective ratings than low-floor trucks.
Conclusion: The workloads of delivery workers were less in the EV truck, which was newly designed than the regular and low-floor trucks based on the analyses of muscle activities, body flexion angles, and subjective ratings in this study.
Application: The findings of this study are expected to be used as data to provide information on the physical workloads of delivery workers in low-floor trucks and are also expected to be used as fundamental data for the evaluation process for various delivery vehicles in the future.
목차
1. Introduction
2. Method
3. Results
4. Discussion
5. Conclusion
References
참고문헌 (0)
참고문헌 신청함께 읽어보면 좋을 논문
논문 유사도에 따라 DBpia 가 추천하는 논문입니다. 함께 보면 좋을 연관 논문을 확인해보세요!
-
Utilizing truck arrival information for minimizing the waiting of trucks in container terminals
대한산업공학회 춘계공동학술대회 논문집
2016 .04
-
Drone-truck hybrid delivery model considering returns
대한산업공학회 춘계공동학술대회 논문집
2021 .06
-
A combined truck-and-robot delivery system for last-mile logistics
대한산업공학회 춘계공동학술대회 논문집
2023 .05
-
Numerical investigation of truck aerodynamics on several classes of infrastructures
Wind & structures
2018 .01
-
A Digital Ethnography Study for Future Truck Interior
한국자동차공학회 춘계학술대회
2023 .05
-
R&D and Commercialization of One-ton EV Truck
대한전기학회 학술대회 논문집
2016 .03
-
배송차량 종류에 따른 택배 근로자의 노동부하 비교분석
대한인간공학회 학술대회논문집
2023 .05
-
폐가구류의 효율적 수거계획 수립을 위한 기초조사 연구
한국환경기술학회지
2021 .01
-
사고 및 충돌유형에 따른 원형교차로 화물차 사고모형
한국안전학회지
2017 .01
-
콘크리트 펌프 트럭 링크 부 동적 거동 해석
한국정밀공학회 학술발표대회 논문집
2020 .09
-
Optimization of truck-loader haulage systems in an underground mine using simulation methods
Geosystem Engineering
2016 .01
-
도로형 건설기계 정밀검사 제도 도입 검토 방안 연구
한국자동차공학회 춘계학술대회
2021 .06
-
An Exact Algorithm for Heterogeneous Drone-Truck Routing Problem
대한산업공학회 추계학술대회 논문집
2020 .11
-
픽업 트럭용 0.8톤급 고강도 붐 설계
한국자동차공학회 춘계학술대회
2015 .05
-
전기 · 수소 대형 화물차의 경제성 및 환경성 분석
대한교통학회지
2024 .08
-
Improvement of Pulling Phenomenon during the Braking of a Truck by a Robust Design Method
대한기계학회 춘추학술대회
2017 .05
-
Biomechanical characteristics of pushing and pulling a manual hand truck
대한인간공학회 학술대회논문집
2024 .11
-
In-situ dynamic loading test of a hybrid continuous arch bridge
Structural Engineering and Mechanics, An Int＇l Journal
2021 .01
-
소형 경유 트럭에 대한 친환경 트럭으로의 개조 기술 선택에 관한 연구
대한교통학회지
2019 .04
-
단면 형상에 따른 Concrete Pump Truck 용 CFRP End Boom 경량화 연구
한국정밀공학회 학술발표대회 논문집
2017 .12
이 논문의 저자 정보
이 논문과 함께 이용한 논문
최근 본 자료
댓글(0)
0
UCI(KEPA) : I410-ECN-0102-2023-530-002053162