Potential Determinants of Manual Lifting: Validation of Ergonomic Assessment by Scoping Review Applying Meta-analysis Approach
Introduction: Despite automation, manual load lifting is unavoidable in occupations like industry, healthcare, defence, etc. Ergonomics studies on manual lifting conducted across the globe explored few aspects of biomechanical and physiological responses. It was hypothesised that, ‘holistic ergonomi...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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JCDR Research and Publications Private Limited
2022-06-01
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| Series: | Journal of Clinical and Diagnostic Research |
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| Online Access: | https://www.jcdr.net/articles/PDF/16422/53143_F[SK]_PF1((SM_SHU)_PFA(SM_KM)_PN(KM).pdf |
| _version_ | 1811164938015604736 |
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| author | Kiran Mondal Deepti Majumdar Jai Chand Patel Sugadev Ragumani Tammanna R Sahrawat |
| author_facet | Kiran Mondal Deepti Majumdar Jai Chand Patel Sugadev Ragumani Tammanna R Sahrawat |
| author_sort | Kiran Mondal |
| collection | DOAJ |
| description | Introduction: Despite automation, manual load lifting is unavoidable in occupations like industry, healthcare, defence, etc. Ergonomics studies on manual lifting conducted across the globe explored few aspects of biomechanical and physiological responses. It was hypothesised that, ‘holistic ergonomics approach’ involving simultaneous recording of these responses under single study, would elucidate potential injury causing factors more effectively and results could be validated by applying meta-analysis technique of literature review.
Aim: To identify the potential determinants of manual lifting by applying multivariate statistics to existing data and correlate the results with determinants as per literature review applying meta-analysis.
Materials and Methods: Clustering and principal component analysis tools of factor analysis was applied on the data obtained under the pilot study (n=11) undertaken by same authors previously on manual lifting that assessed 26 dependent parameters simultaneously for load magnitudes (10 kg, 20 kg), lifting heights (floor-knuckle, knuckle-shoulder and floor-shoulder) and lifting frequencies (1 lift/min, 4 lift/min). Further, extensive scoping literature review on determinants of manual load lifting was done applying text mining tool of meta-analysis technique on R software platform using 921 Pubmed abstracts published between 1991 and 2018.
Results: Salient findings of factor analysis corroborated with that of scoping literature review. Accordingly, dependent variable ‘Vertical Ground Reaction Force (VGRF)’ and independent variable ‘vertical height of lift’ changed most significantly during manual lifting, showing significant positive correlations. Newton’s third law of motion states that while bipedal standing/walking/running on floor, two forces (with three vector components) are acting upon a person: the force of gravity (downward force, equivalent to body weight) and the Ground Reaction Force (GRF, an equal upward force exerted by floor). However, while standing still at one place for lifting load, only the largest vector component of GRF, i.e., VGRF acts on the body (=‘body weight’+‘load magnitude’) through the vertical height of lift.
Conclusion: It may be concluded that ‘vertical height of lift’ and VGRF are possible indicators of injury potential of manual lifting. However, studies on larger sample size and meta-analysis of relevant full papers instead of abstracts need to be done in future. |
| first_indexed | 2024-04-10T15:29:21Z |
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| institution | Directory Open Access Journal |
| issn | 2249-782X 0973-709X |
| language | English |
| last_indexed | 2024-04-10T15:29:21Z |
| publishDate | 2022-06-01 |
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| series | Journal of Clinical and Diagnostic Research |
| spelling | doaj.art-a2fca483dca841aba29e4da7fdb4ab1e2023-02-14T05:28:00ZengJCDR Research and Publications Private LimitedJournal of Clinical and Diagnostic Research2249-782X0973-709X2022-06-01166CE01CE0910.7860/JCDR/2022/53143.16422Potential Determinants of Manual Lifting: Validation of Ergonomic Assessment by Scoping Review Applying Meta-analysis ApproachKiran Mondal0Deepti Majumdar1Jai Chand Patel2Sugadev Ragumani3Tammanna R Sahrawat4Senior Research Fellow, Ergonomics Laboratory, Defence Institute of Physiology and Allied Sciences, New Delhi, India.Scientist E, Ergonomics Laboratory, Defence Institute of Physiology and Allied Sciences, New Delhi, India.Senior Research Fellow, Defence Institute of Physiology and Allied Sciences, New Delhi, India.Scientist F, Defence Institute of Physiology and Allied Sciences, New Delhi, India.Assistant Professor, Centre for Systems Biology and Bioinformatics, UIEAST, Punjab University, Chandigarh, India.Introduction: Despite automation, manual load lifting is unavoidable in occupations like industry, healthcare, defence, etc. Ergonomics studies on manual lifting conducted across the globe explored few aspects of biomechanical and physiological responses. It was hypothesised that, ‘holistic ergonomics approach’ involving simultaneous recording of these responses under single study, would elucidate potential injury causing factors more effectively and results could be validated by applying meta-analysis technique of literature review. Aim: To identify the potential determinants of manual lifting by applying multivariate statistics to existing data and correlate the results with determinants as per literature review applying meta-analysis. Materials and Methods: Clustering and principal component analysis tools of factor analysis was applied on the data obtained under the pilot study (n=11) undertaken by same authors previously on manual lifting that assessed 26 dependent parameters simultaneously for load magnitudes (10 kg, 20 kg), lifting heights (floor-knuckle, knuckle-shoulder and floor-shoulder) and lifting frequencies (1 lift/min, 4 lift/min). Further, extensive scoping literature review on determinants of manual load lifting was done applying text mining tool of meta-analysis technique on R software platform using 921 Pubmed abstracts published between 1991 and 2018. Results: Salient findings of factor analysis corroborated with that of scoping literature review. Accordingly, dependent variable ‘Vertical Ground Reaction Force (VGRF)’ and independent variable ‘vertical height of lift’ changed most significantly during manual lifting, showing significant positive correlations. Newton’s third law of motion states that while bipedal standing/walking/running on floor, two forces (with three vector components) are acting upon a person: the force of gravity (downward force, equivalent to body weight) and the Ground Reaction Force (GRF, an equal upward force exerted by floor). However, while standing still at one place for lifting load, only the largest vector component of GRF, i.e., VGRF acts on the body (=‘body weight’+‘load magnitude’) through the vertical height of lift. Conclusion: It may be concluded that ‘vertical height of lift’ and VGRF are possible indicators of injury potential of manual lifting. However, studies on larger sample size and meta-analysis of relevant full papers instead of abstracts need to be done in future.https://www.jcdr.net/articles/PDF/16422/53143_F[SK]_PF1((SM_SHU)_PFA(SM_KM)_PN(KM).pdfdata miningfactor analysislifting heightvertical ground reaction force |
| spellingShingle | Kiran Mondal Deepti Majumdar Jai Chand Patel Sugadev Ragumani Tammanna R Sahrawat Potential Determinants of Manual Lifting: Validation of Ergonomic Assessment by Scoping Review Applying Meta-analysis Approach Journal of Clinical and Diagnostic Research data mining factor analysis lifting height vertical ground reaction force |
| title | Potential Determinants of Manual Lifting: Validation of Ergonomic Assessment by Scoping Review Applying Meta-analysis Approach |
| title_full | Potential Determinants of Manual Lifting: Validation of Ergonomic Assessment by Scoping Review Applying Meta-analysis Approach |
| title_fullStr | Potential Determinants of Manual Lifting: Validation of Ergonomic Assessment by Scoping Review Applying Meta-analysis Approach |
| title_full_unstemmed | Potential Determinants of Manual Lifting: Validation of Ergonomic Assessment by Scoping Review Applying Meta-analysis Approach |
| title_short | Potential Determinants of Manual Lifting: Validation of Ergonomic Assessment by Scoping Review Applying Meta-analysis Approach |
| title_sort | potential determinants of manual lifting validation of ergonomic assessment by scoping review applying meta analysis approach |
| topic | data mining factor analysis lifting height vertical ground reaction force |
| url | https://www.jcdr.net/articles/PDF/16422/53143_F[SK]_PF1((SM_SHU)_PFA(SM_KM)_PN(KM).pdf |
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