Adjustments in Shoulder and Back Kinematics during Repetitive Palletizing Tasks
Repetitive task performance is a leading cause of musculoskeletal injuries among order-picking workers in warehouses. The repetition of lifting tasks increases the risk of back and shoulder injuries among these workers. While lifting in this industry is composed of loaded and unloaded picking and pl...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-07-01
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| Series: | Sensors |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1424-8220/22/15/5655 |
| _version_ | 1797412300236259328 |
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| author | Saeb R. Lamooki Lora A. Cavuoto Jiyeon Kang |
| author_facet | Saeb R. Lamooki Lora A. Cavuoto Jiyeon Kang |
| author_sort | Saeb R. Lamooki |
| collection | DOAJ |
| description | Repetitive task performance is a leading cause of musculoskeletal injuries among order-picking workers in warehouses. The repetition of lifting tasks increases the risk of back and shoulder injuries among these workers. While lifting in this industry is composed of loaded and unloaded picking and placing, the existing literature does not address the separate analysis of the biomechanics of the back and shoulder for these events. To that end, we investigated the kinematics of the back and shoulder movements of nine healthy male participants who performed three sessions of a simulated de/palletization task. Their back and shoulder kinematics were sensed using an optical motion capture system to determine the back inclination and shoulder flexion. Comparison of the kinematics between the first and last sessions indicated statistically significant changes in the timings, angles, coordination between the back and shoulder, and moments around the shoulder (<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>p</mi><mo><</mo><mn>0.05</mn></mrow></semantics></math></inline-formula>). The majority of the significant changes were observed during the loaded events, which confirms the importance of the separation of these events for biomechanical analysis. This finding suggests that focusing worker evaluation on the loaded periods can provide important information to detect kinematic changes that may affect musculoskeletal injury risk. |
| first_indexed | 2024-03-09T05:00:07Z |
| format | Article |
| id | doaj.art-7777a4a57c704328a1dc9f6997353891 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-09T05:00:07Z |
| publishDate | 2022-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-7777a4a57c704328a1dc9f69973538912023-12-03T13:00:50ZengMDPI AGSensors1424-82202022-07-012215565510.3390/s22155655Adjustments in Shoulder and Back Kinematics during Repetitive Palletizing TasksSaeb R. Lamooki0Lora A. Cavuoto1Jiyeon Kang2Mechanical and Aerospace Engineering, University at Buffalo, Buffalo, NY 14260, USAIndustrial and Systems Engineering, University at Buffalo, Buffalo, NY 14260, USAMechanical and Aerospace Engineering, University at Buffalo, Buffalo, NY 14260, USARepetitive task performance is a leading cause of musculoskeletal injuries among order-picking workers in warehouses. The repetition of lifting tasks increases the risk of back and shoulder injuries among these workers. While lifting in this industry is composed of loaded and unloaded picking and placing, the existing literature does not address the separate analysis of the biomechanics of the back and shoulder for these events. To that end, we investigated the kinematics of the back and shoulder movements of nine healthy male participants who performed three sessions of a simulated de/palletization task. Their back and shoulder kinematics were sensed using an optical motion capture system to determine the back inclination and shoulder flexion. Comparison of the kinematics between the first and last sessions indicated statistically significant changes in the timings, angles, coordination between the back and shoulder, and moments around the shoulder (<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>p</mi><mo><</mo><mn>0.05</mn></mrow></semantics></math></inline-formula>). The majority of the significant changes were observed during the loaded events, which confirms the importance of the separation of these events for biomechanical analysis. This finding suggests that focusing worker evaluation on the loaded periods can provide important information to detect kinematic changes that may affect musculoskeletal injury risk.https://www.mdpi.com/1424-8220/22/15/5655upper-body kinematicsrepetitive task performanceback bendingloading and unloadingergonomics |
| spellingShingle | Saeb R. Lamooki Lora A. Cavuoto Jiyeon Kang Adjustments in Shoulder and Back Kinematics during Repetitive Palletizing Tasks Sensors upper-body kinematics repetitive task performance back bending loading and unloading ergonomics |
| title | Adjustments in Shoulder and Back Kinematics during Repetitive Palletizing Tasks |
| title_full | Adjustments in Shoulder and Back Kinematics during Repetitive Palletizing Tasks |
| title_fullStr | Adjustments in Shoulder and Back Kinematics during Repetitive Palletizing Tasks |
| title_full_unstemmed | Adjustments in Shoulder and Back Kinematics during Repetitive Palletizing Tasks |
| title_short | Adjustments in Shoulder and Back Kinematics during Repetitive Palletizing Tasks |
| title_sort | adjustments in shoulder and back kinematics during repetitive palletizing tasks |
| topic | upper-body kinematics repetitive task performance back bending loading and unloading ergonomics |
| url | https://www.mdpi.com/1424-8220/22/15/5655 |
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