{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,12]],"date-time":"2026-03-12T14:48:08Z","timestamp":1773326888964,"version":"3.50.1"},"reference-count":48,"publisher":"MDPI AG","issue":"4","license":[{"start":{"date-parts":[[2021,10,27]],"date-time":"2021-10-27T00:00:00Z","timestamp":1635292800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100004895","name":"European Social Fund","doi-asserted-by":"publisher","award":["NORTE-06-3559-FSE-000018"],"award-info":[{"award-number":["NORTE-06-3559-FSE-000018"]}],"id":[{"id":"10.13039\/501100004895","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001871","name":"Funda\u00e7\u00e3o para a Ci\u00eancia e a Tecnologia","doi-asserted-by":"publisher","award":["UIDB\/00319\/2020"],"award-info":[{"award-number":["UIDB\/00319\/2020"]}],"id":[{"id":"10.13039\/501100001871","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Safety"],"abstract":"<jats:p>The ergonomic assessment of adopted working postures is essential for avoiding musculoskeletal risk factors in manufacturing contexts. Several observational methods based on external analyst observations are available; however, they are relatively subjective and suffer low repeatability. Over the past decade, the digitalization of this assessment has received high research interest. Robotic applications have the potential to lighten workers\u2019 workload and improve working conditions. Therefore, this work presents a musculoskeletal risk assessment before and after robotic implementation in an assembly workstation. We also emphasize the importance of using novel and non-intrusive technologies for musculoskeletal risk assessment. A kinematic study was conducted using inertial motion units (IMU) in a convenience sample of two workers during their normal performance of assembly work cycles. The musculoskeletal risk was estimated according to a semi-automated solution, called the Rapid Upper Limb Assessment (RULA) report. Based on previous musculoskeletal problems reported by the company, the assessment centered on the kinematic analysis of functional wrist movements (flexion\/extension, ulnar\/radial deviation, and pronation\/supination). The results of the RULA report showed a reduction in musculoskeletal risk using robotic-assisted assembly. Regarding the kinematic analysis of the wrist during robotic-assisted tasks, a significant posture improvement of 20\u201345% was registered (considering the angular deviations relative to the neutral wrist position). The results obtained by direct measurements simultaneously reflect the workload and individual characteristics. The current study highlights the importance of an in-field instrumented assessment of musculoskeletal risk and the limitations of the system applied (e.g., unsuitable for tracking the motion of small joints, such as the fingers).<\/jats:p>","DOI":"10.3390\/safety7040074","type":"journal-article","created":{"date-parts":[[2021,10,27]],"date-time":"2021-10-27T23:24:42Z","timestamp":1635377082000},"page":"74","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":17,"title":["Digitalization of Musculoskeletal Risk Assessment in a Robotic-Assisted Assembly Workstation"],"prefix":"10.3390","volume":"7","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-1138-1534","authenticated-orcid":false,"given":"Ana","family":"Colim","sequence":"first","affiliation":[{"name":"DTx Colab and Algoritmi Centre, School of Engineering, University of Minho, 4800-058 Guimar\u00e3es, Portugal"}]},{"given":"Andr\u00e9","family":"Cardoso","sequence":"additional","affiliation":[{"name":"Algoritmi Centre, School of Engineering, University of Minho, 4800-058 Guimar\u00e3es, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9421-9123","authenticated-orcid":false,"given":"Pedro","family":"Arezes","sequence":"additional","affiliation":[{"name":"Algoritmi Centre, School of Engineering, University of Minho, 4800-058 Guimar\u00e3es, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1991-9418","authenticated-orcid":false,"given":"Ana Cristina","family":"Braga","sequence":"additional","affiliation":[{"name":"Algoritmi Centre, School of Engineering, University of Minho, 4800-058 Guimar\u00e3es, Portugal"}]},{"given":"Ana Carolina","family":"Peixoto","sequence":"additional","affiliation":[{"name":"Production and Systems Department, School of Engineering, University of Minho, 4800-058 Guimar\u00e3es, Portugal"}]},{"given":"V\u00edtor","family":"Peixoto","sequence":"additional","affiliation":[{"name":"Production and Systems Department, School of Engineering, University of Minho, 4800-058 Guimar\u00e3es, Portugal"}]},{"given":"Felix","family":"Wolbert","sequence":"additional","affiliation":[{"name":"Institute of Health Science and Technology, Aalborg University, 9220 Aalborg, Denmark"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0874-8593","authenticated-orcid":false,"given":"Paula","family":"Carneiro","sequence":"additional","affiliation":[{"name":"Algoritmi Centre, School of Engineering, University of Minho, 4800-058 Guimar\u00e3es, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9348-8038","authenticated-orcid":false,"given":"N\u00e9lson","family":"Costa","sequence":"additional","affiliation":[{"name":"Algoritmi Centre, School of Engineering, University of Minho, 4800-058 Guimar\u00e3es, Portugal"}]},{"given":"Nuno","family":"Sousa","sequence":"additional","affiliation":[{"name":"Algoritmi Centre, School of Engineering, University of Minho, 4800-058 Guimar\u00e3es, Portugal"}]}],"member":"1968","published-online":{"date-parts":[[2021,10,27]]},"reference":[{"key":"ref_1","unstructured":"Petreanu, V., and Seracin, A.-M. (2017). Risk Factors for Musculoskeletal Disorders Development: Hand-Arm Tasks, Repetitive Work. Natl. Res.Dev. Heal. Safety Rom., 1\u20138."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"97","DOI":"10.1016\/j.ergon.2015.02.002","article-title":"Participatory Ergonomics Intervention for Improving Human and Production Outcomes of a Brazilian Furniture Company","volume":"49","author":"Anzanello","year":"2015","journal-title":"Int. J. Ind. Ergon."},{"key":"ref_3","first-page":"229","article-title":"Ergonomic Intervention on a Packing Workstation with Robotic Aid\u2014Case Study at a Furniture Manufacturing Industry","volume":"66","author":"Colim","year":"2020","journal-title":"Work. A J. Prev. Assess. Rehabil."},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"190","DOI":"10.1093\/occmed\/kqi082","article-title":"Ergonomic Methods for Assessing Exposure to Risk Factors for Work-Related Musculoskeletal Disorders","volume":"55","author":"David","year":"2005","journal-title":"Occup. Med."},{"key":"ref_5","unstructured":"Ellegast, R. (2016). Assessment of Physical Workloads to Prevent Work-Related MSDs, Institute for Occupational Safety and Health of the German Social Accident Insurance."},{"key":"ref_6","doi-asserted-by":"crossref","unstructured":"Hussain, I., and Park, S.J. (2021). Prediction of Myoelectric Biomarkers in Post-Stroke Gait. Sensors, 21.","DOI":"10.3390\/s21165334"},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"103161","DOI":"10.1016\/j.apergo.2020.103161","article-title":"Ergonomic Assessment of a New Hand Tool Design for Laparoscopic Surgery Based on Surgeons\u2019 Muscular Activity","volume":"88","author":"Salgado","year":"2020","journal-title":"Appl. Ergon."},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"217","DOI":"10.1080\/10803548.2019.1587223","article-title":"Obesity Effects on Muscular Activity during Lifting and Lowering Tasks","volume":"27","author":"Colim","year":"2021","journal-title":"Int. J. Occup. Saf. Ergon."},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"91","DOI":"10.1016\/0003-6870(93)90080-S","article-title":"RULA: A Survey Method for the Investigation of Work-Related Upper Limb Disorders","volume":"24","author":"McAtamney","year":"1993","journal-title":"Appl. Ergon."},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"562","DOI":"10.1016\/j.apergo.2016.10.015","article-title":"Validation of an Ergonomic Assessment Method Using Kinect Data in Real Workplace Conditions","volume":"65","author":"Plantard","year":"2017","journal-title":"Appl. Ergon."},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"75","DOI":"10.1016\/j.apergo.2019.05.004","article-title":"RGB-D Ergonomic Assessment System of Adopted Working Postures","volume":"80","author":"Abobakr","year":"2019","journal-title":"Appl. Ergon."},{"key":"ref_12","doi-asserted-by":"crossref","unstructured":"Colim, A., Morgado, R., Carneiro, P., Costa, N., Faria, C., Sousa, N., Rocha, A., and Arezes, P. (2021). Lean Manufacturing and Ergonomics Integration: Defining Productivity and Wellbeing Indicators in a Human\u2014Robot Workstation. Sustainability, 13.","DOI":"10.3390\/su13041931"},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"103147","DOI":"10.1016\/j.ergon.2021.103147","article-title":"In-Field Instrumented Ergonomic Risk Assessment: Inertial Measurement Units versus Kinect V2","volume":"84","author":"Humadi","year":"2021","journal-title":"Int. J. Ind. Ergon."},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"596","DOI":"10.1016\/j.cie.2017.06.011","article-title":"Visual Management and Artificial Intelligence Integrated in a New Fuzzy-Based Full Body Postural Assessment","volume":"111","author":"Savino","year":"2017","journal-title":"Comput. Ind. Eng."},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"N63","DOI":"10.1088\/0967-3334\/34\/8\/N63","article-title":"Concurrent Validation of Xsens MVN Measurement of Lower Limb Joint Angular Kinematics","volume":"34","author":"Zhang","year":"2013","journal-title":"Physiol. Meas."},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"187","DOI":"10.26582\/k.52.2.4","article-title":"How Can Xsens Kinematic Suit Add to Our Understanding of a Slalom Turn: A Case Study in Laboratory and Field Conditions","volume":"52","author":"Cigrovski","year":"2020","journal-title":"Kinesiology"},{"key":"ref_17","unstructured":"Schepers, M., Giuberti, M., and Bellusci, G. (2018). Xsens MVN: Consistent Tracking of Human Motion Using Inertial Sensing. Xsens Technol., 1\u20138."},{"key":"ref_18","doi-asserted-by":"crossref","first-page":"15069","DOI":"10.1177\/1729881420915069","article-title":"Analysis of Human Mechanics Structure in National Tai Chi Movement","volume":"17","author":"Wang","year":"2020","journal-title":"Int. J. Adv. Robot. Syst."},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"62","DOI":"10.1016\/j.apergo.2015.06.016","article-title":"Factors Affecting the Risk of Developing Lower Back Musculoskeletal Disorders (MSDs) in Experienced and Inexperienced Rodworkers","volume":"52","author":"Salas","year":"2016","journal-title":"Appl. Ergon."},{"key":"ref_20","doi-asserted-by":"crossref","unstructured":"Maurer-Grubinger, C., Haenel, J., Fraeulin, L., Holzgreve, F., Wanke, E.M., Groneberg, D.A., and Ohlendorf, D. (2020). The Movement Profile of Habitual Vacuuming as a Cyclic Movement\u2014a Pilot Study. Int. J. Environ. Res. Public Health, 17.","DOI":"10.3390\/ijerph17238793"},{"key":"ref_21","doi-asserted-by":"crossref","first-page":"101","DOI":"10.1016\/j.jen.2020.05.018","article-title":"Development and Feasibility Testing of a Contextual Patient Movement Intervention","volume":"47","author":"Callihan","year":"2021","journal-title":"J. Emerg. Nurs."},{"key":"ref_22","doi-asserted-by":"crossref","first-page":"103120","DOI":"10.1016\/j.apergo.2020.103120","article-title":"Ergonomics Assessment of Passive Upper-Limb Exoskeletons in an Automotive Assembly Plant","volume":"87","author":"Iranzo","year":"2020","journal-title":"Appl. Ergon."},{"key":"ref_23","doi-asserted-by":"crossref","first-page":"80","DOI":"10.1016\/j.ergon.2018.10.004","article-title":"Ergonomic Evaluation of the Musculoskeletal Risks in a Banana Harvesting Activity through Qualitative and Quantitative Measures, with Emphasis on Motion Capture (Xsens) and EMG","volume":"69","author":"Merino","year":"2019","journal-title":"Int. J. Ind. Ergon."},{"key":"ref_24","doi-asserted-by":"crossref","unstructured":"Kim, W., Peternel, L., Lorenzini, M., Babi\u010d, J., and Ajoudani, A. (2021). A Human-Robot Collaboration Framework for Improving Ergonomics During Dexterous Operation of Power Tools. Robot. Comput. Integr. Manuf., 68.","DOI":"10.1016\/j.rcim.2020.102084"},{"key":"ref_25","unstructured":"Xsens Technologies, B.V (2021). Xsens MVN RULA Report: The Use of Inertial Motion Capture for Cloud Based Reporting of RULA Parameters, Xsens Technologies B.V."},{"key":"ref_26","doi-asserted-by":"crossref","unstructured":"Colim, A., Faria, C., Sousa, N., and Rocha, A. (2021). Physical Ergonomic Improvement and Safe Design of an Assembly Workstation through Collaborative Robotics. Safety, 7.","DOI":"10.3390\/safety7010014"},{"key":"ref_27","doi-asserted-by":"crossref","unstructured":"Colim, A., Faria, C., Braga, A.C., Sousa, N., Rocha, L., Carneiro, P., Costa, N., and Arezes, P. (2020). Towards an Ergonomic Assessment Framework for Industrial Assembly Workstations\u2014A Case Study. Appl. Sci., 10.","DOI":"10.3390\/app10093048"},{"key":"ref_28","doi-asserted-by":"crossref","first-page":"397","DOI":"10.1016\/j.jbiomech.2018.11.031","article-title":"Biomechanics in Posture Space: Properties and Relevance of Principal Accelerations for Characterizing Movement Control","volume":"82","author":"Longo","year":"2019","journal-title":"J. Biomech."},{"key":"ref_29","unstructured":"Roetenberg, D., Luinge, H., and Slycke, P. (2009). Xsens MVN: Full 6DOF Human Motion Tracking Using Miniature Inertial Sensors, Xsens Motion Technol. BV."},{"key":"ref_30","doi-asserted-by":"crossref","first-page":"124","DOI":"10.1016\/j.apergo.2018.08.018","article-title":"Biomechanical Analysis of Manual Material Handling Movement in Healthy Weight and Obese Workers","volume":"74","author":"Corbeil","year":"2019","journal-title":"Appl. Ergon."},{"key":"ref_31","doi-asserted-by":"crossref","first-page":"123","DOI":"10.1016\/j.apergo.2017.04.011","article-title":"Effect of Local Magnetic Field Disturbances on Inertial Measurement Units Accuracy","volume":"63","author":"Mecheri","year":"2017","journal-title":"Appl. Ergon."},{"key":"ref_32","first-page":"419","article-title":"Aiding Observational Ergonomic Evaluation Methods Using MOCAP Systems Supported by AI-Based Posture Recognition","volume":"11","author":"Igelmo","year":"2020","journal-title":"Adv. Transdiscipl. Eng."},{"key":"ref_33","first-page":"39","article-title":"Biomechanical Study of Dentists\u2019 Posture When Using a Conventional Chair versus a Saddle-Seat Chair","volume":"58","author":"Silva","year":"2017","journal-title":"Rev. Port. Estomatol. Med. Dent. Cir. Maxilofac."},{"key":"ref_34","doi-asserted-by":"crossref","first-page":"223","DOI":"10.3233\/IES-2005-0210","article-title":"An Investigation of Hand Dominance, Average versus Maximum Grip Strength, Body Mass Index and Ages as Determinants for Hand Evaluation","volume":"13","author":"Ertem","year":"2005","journal-title":"Isokinet. Exerc. Sci."},{"key":"ref_35","doi-asserted-by":"crossref","first-page":"195","DOI":"10.1016\/S0169-8141(97)00015-2","article-title":"Measurements of Shoulder Adduction Strength in Different Postures","volume":"22","author":"Kumar","year":"1998","journal-title":"Int. J. Ind. Ergon."},{"key":"ref_36","first-page":"12","article-title":"The Prevalence of Self-Reported Musculoskeletal Symptoms among Loggers in Poland","volume":"52","author":"Wandycz","year":"2014","journal-title":"Int. J. Ind. Ergon."},{"key":"ref_37","doi-asserted-by":"crossref","unstructured":"Cherubini, A., Passama, R., Crosnier, A., Lasnier, A., and Fraisse, P. (2016). Collaborative Manufacturing with Physical Human-Robot Interaction. Robot. Comput. Integr. Manuf., 40.","DOI":"10.1016\/j.rcim.2015.12.007"},{"key":"ref_38","doi-asserted-by":"crossref","first-page":"88","DOI":"10.1016\/j.ergon.2016.11.011","article-title":"Human-Oriented Design of Collaborative Robots","volume":"57","author":"Maurice","year":"2017","journal-title":"Int. J. Ind. Ergon."},{"key":"ref_39","doi-asserted-by":"crossref","unstructured":"Gualtieri, L., Palomba, I., Merati, F.A., Rauch, E., and Vidoni, R. (2020). Design of Human-Centered Collaborative Assembly Workstations for the Improvement of Operators\u2019 Physical Ergonomics and Production Efficiency: A Case Study. Sustainability, 12.","DOI":"10.3390\/su12093606"},{"key":"ref_40","first-page":"1","article-title":"Effects of Ulnar Deviation of the Wrist Combined with Flexion\/Extension on the Maximum Voluntary Contraction of Grip","volume":"38","author":"Haque","year":"2009","journal-title":"J. Hum. Ergol."},{"key":"ref_41","doi-asserted-by":"crossref","first-page":"912","DOI":"10.1080\/00140139.2016.1237678","article-title":"The Revised Strain Index: An Improved Upper Extremity Exposure Assessment Model","volume":"60","author":"Garg","year":"2017","journal-title":"Ergonomics"},{"key":"ref_42","doi-asserted-by":"crossref","first-page":"357","DOI":"10.1016\/S0003-6870(01)00006-0","article-title":"LUBA: An Assessment Technique for Postural Loading on the Upper Body Based on Joint Motion Discomfort and Maximum Holding Time","volume":"32","author":"Kee","year":"2001","journal-title":"Appl. Ergon."},{"key":"ref_43","doi-asserted-by":"crossref","first-page":"1740","DOI":"10.1080\/00140130701674349","article-title":"Repetitive Task Indicator as a Tool for Assessment of Upper Limb Musculoskeletal Load Induced by Repetitive Task","volume":"50","year":"2007","journal-title":"Ergonomics"},{"key":"ref_44","doi-asserted-by":"crossref","first-page":"1269","DOI":"10.1002\/jor.20599","article-title":"Effect of Wrist Posture on Carpal Tunnel Pressure While Typing","volume":"26","author":"Rempel","year":"2008","journal-title":"J. Orthop. Res."},{"key":"ref_45","doi-asserted-by":"crossref","first-page":"5699","DOI":"10.1016\/j.promfg.2015.07.796","article-title":"Design Proposal of an Adjustable Workstation for Very Short and Very Tall People","volume":"3","year":"2015","journal-title":"Procedia Manuf."},{"key":"ref_46","doi-asserted-by":"crossref","first-page":"130","DOI":"10.1016\/j.ergon.2015.11.008","article-title":"An Ergonomic Expert System for Risk Assessment of Work-Related Musculo-Skeletal Disorders","volume":"53","author":"Hedge","year":"2016","journal-title":"Int. J. Ind. Ergon."},{"key":"ref_47","doi-asserted-by":"crossref","first-page":"481","DOI":"10.1016\/j.apergo.2017.02.015","article-title":"Real Time RULA Assessment Using Kinect v2 Sensor","volume":"65","author":"Manghisi","year":"2017","journal-title":"Appl. Ergon."},{"key":"ref_48","unstructured":"Health and Safety (HSE) (2010). Assessment of Repetitive Tasks of the Upper Limbs (the ART Tool ), HSE."}],"container-title":["Safety"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/2313-576X\/7\/4\/74\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T07:21:20Z","timestamp":1760167280000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/2313-576X\/7\/4\/74"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2021,10,27]]},"references-count":48,"journal-issue":{"issue":"4","published-online":{"date-parts":[[2021,12]]}},"alternative-id":["safety7040074"],"URL":"https:\/\/doi.org\/10.3390\/safety7040074","relation":{},"ISSN":["2313-576X"],"issn-type":[{"value":"2313-576X","type":"electronic"}],"subject":[],"published":{"date-parts":[[2021,10,27]]}}}