1
|
Guo Z, Chen Z, Pai J, Fang B, Liang W, Su G, Zheng F. Effects of laptop screen height on neck and shoulder muscle fatigue and spine loading for office workers. Work 2024:WOR230719. [PMID: 38995755 DOI: 10.3233/wor-230719] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/14/2024] Open
Abstract
BACKGROUND Due to the unfavourable neck-shoulder muscle loads caused by poor posture, the people who use the laptop for a long time may face the risk of neck and shoulder injuries. OBJECTIVE The purpose of this study investigates the impact of the screen height on the muscle activation of head flexion, neck and shoulder, and the cervical spine torque to provide the favorite screen height for laptop user. METHODS Twelve healthy young participants completed a15-minute task of the reading at the four different screen heights. sEMG signals of the splenius capitis (SC) and upper trapezius (UT) were measured and calculated the root mean square (RMS) and mean power frequency (MPF) to determine muscle fatigue. The different height of laptop users was simulated and the forces on the spine of users at different screen heights were analyzed by Jack. RESULTS Adjusting the height of the laptop screen can effectively reduce head flexion and muscle activity of SC and UT, and has a positive effect on reducing fatigue of SC, but has no significant effect on UT. CONCLUSIONS Adjusting the height of the laptop screen can delay the occurrence of SC muscle fatigue to a certain extent. The joint analysis of sEMG spectrum and amplitude reports that the screen heights of D15 and D45 have the highest and the lowest frequency of fatigue, respectively. At the same time, the moment of spineT1/T2 and spineL4/L5 decrease with the increase of screen height.
Collapse
Affiliation(s)
- Zenghui Guo
- School of Mechanical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China
| | - Zhiyuan Chen
- School of Mechanical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China
| | - Junjun Pai
- Shandong Key Laboratory of Advanced Aluminum Materials and Technology, Binzhou Institute of Technology, Binzhou, China
| | - Bin Fang
- School of Mechanical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China
- Shandong Key Laboratory of Advanced Aluminum Materials and Technology, Binzhou Institute of Technology, Binzhou, China
- Shandong Institute of Mechanical Design and Research, Jinan, China
| | - Wenhao Liang
- School of Mechanical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China
| | - Guosheng Su
- School of Mechanical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China
- Shandong Institute of Mechanical Design and Research, Jinan, China
| | - Feng Zheng
- School of Mechanical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China
- Shandong Institute of Mechanical Design and Research, Jinan, China
| |
Collapse
|
2
|
Pérez-Salazar MJ, Caballero D, Sánchez-Margallo JA, Sánchez-Margallo FM. Comparative Study of Ergonomics in Conventional and Robotic-Assisted Laparoscopic Surgery. SENSORS (BASEL, SWITZERLAND) 2024; 24:3840. [PMID: 38931624 PMCID: PMC11207857 DOI: 10.3390/s24123840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2024] [Revised: 05/15/2024] [Accepted: 06/11/2024] [Indexed: 06/28/2024]
Abstract
BACKGROUND This study aims to implement a set of wearable technologies to record and analyze the surgeon's physiological and ergonomic parameters during the performance of conventional and robotic-assisted laparoscopic surgery, comparing the ergonomics and stress levels of surgeons during surgical procedures. METHODS This study was organized in two different settings: simulator tasks and experimental model surgical procedures. The participating surgeons performed the tasks and surgical procedures in both laparoscopic and robotic-assisted surgery in a randomized fashion. Different wearable technologies were used to record the surgeons' posture, muscle activity, electrodermal activity and electrocardiography signal during the surgical practice. RESULTS The simulator study involved six surgeons: three experienced (>100 laparoscopic procedures performed; 36.33 ± 13.65 years old) and three novices (<100 laparoscopic procedures; 29.33 ± 8.39 years old). Three surgeons of different surgical specialties with experience in laparoscopic surgery (>100 laparoscopic procedures performed; 37.00 ± 5.29 years old), but without experience in surgical robotics, participated in the experimental model study. The participating surgeons showed an increased level of stress during the robotic-assisted surgical procedures. Overall, improved surgeon posture was obtained during robotic-assisted surgery, with a reduction in localized muscle fatigue. CONCLUSIONS A set of wearable technologies was implemented to measure and analyze surgeon physiological and ergonomic parameters. Robotic-assisted procedures showed better ergonomic outcomes for the surgeon compared to conventional laparoscopic surgery. Ergonomic analysis allows us to optimize surgeon performance and improve surgical training.
Collapse
Affiliation(s)
- Manuel J. Pérez-Salazar
- Bioengineering and Health Technologies Unit, Jesús Usón Minimally Invasive Surgery Centre, ES-10004 Cáceres, Spain; (M.J.P.-S.); (D.C.)
| | - Daniel Caballero
- Bioengineering and Health Technologies Unit, Jesús Usón Minimally Invasive Surgery Centre, ES-10004 Cáceres, Spain; (M.J.P.-S.); (D.C.)
| | - Juan A. Sánchez-Margallo
- Bioengineering and Health Technologies Unit, Jesús Usón Minimally Invasive Surgery Centre, ES-10004 Cáceres, Spain; (M.J.P.-S.); (D.C.)
| | | |
Collapse
|
3
|
Figueira V, Silva S, Costa I, Campos B, Salgado J, Pinho L, Freitas M, Carvalho P, Marques J, Pinho F. Wearables for Monitoring and Postural Feedback in the Work Context: A Scoping Review. SENSORS (BASEL, SWITZERLAND) 2024; 24:1341. [PMID: 38400498 PMCID: PMC10893004 DOI: 10.3390/s24041341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Revised: 02/06/2024] [Accepted: 02/12/2024] [Indexed: 02/25/2024]
Abstract
Wearables offer a promising solution for simultaneous posture monitoring and/or corrective feedback. The main objective was to identify, synthesise, and characterise the wearables used in the workplace to monitor and postural feedback to workers. The PRISMA-ScR guidelines were followed. Studies were included between 1 January 2000 and 22 March 2023 in Spanish, French, English, and Portuguese without geographical restriction. The databases selected for the research were PubMed®, Web of Science®, Scopus®, and Google Scholar®. Qualitative studies, theses, reviews, and meta-analyses were excluded. Twelve studies were included, involving a total of 304 workers, mostly health professionals (n = 8). The remaining studies covered workers in the industry (n = 2), in the construction (n = 1), and welders (n = 1). For assessment purposes, most studies used one (n = 5) or two sensors (n = 5) characterised as accelerometers (n = 7), sixaxial (n = 2) or nonaxialinertial measurement units (n = 3). The most common source of feedback was the sensor itself (n = 6) or smartphones (n = 4). Haptic feedback was the most prevalent (n = 6), followed by auditory (n = 5) and visual (n = 3). Most studies employed prototype wearables emphasising kinematic variables of human movement. Healthcare professionals were the primary focus of the study along with haptic feedback that proved to be the most common and effective method for correcting posture during work activities.
Collapse
Affiliation(s)
- Vânia Figueira
- Escola Superior de Saúde do Vale do Ave, Cooperativa de Ensino Superior Politécnico e Universitário, Rua José António Vidal, 81, 4760-409 Vila Nova de Famalicão, Portugal; (S.S.); (I.C.); (B.C.); (J.S.); (L.P.); (M.F.); (J.M.); (F.P.)
- H2M—Health and Human Movement Unit, Polytechnic University of Health, Cooperativa de Ensino Superior Politécnico e Universitário, CRL 4760-409 Vila Nova de Famalicão, Portugal
- Research Centre in Physical Activity, Health and Leisure, Faculty of Sport, University of Porto, Rua Dr. Plácido da Costa, 91, 4200-450 Porto, Portugal
| | - Sandra Silva
- Escola Superior de Saúde do Vale do Ave, Cooperativa de Ensino Superior Politécnico e Universitário, Rua José António Vidal, 81, 4760-409 Vila Nova de Famalicão, Portugal; (S.S.); (I.C.); (B.C.); (J.S.); (L.P.); (M.F.); (J.M.); (F.P.)
- H2M—Health and Human Movement Unit, Polytechnic University of Health, Cooperativa de Ensino Superior Politécnico e Universitário, CRL 4760-409 Vila Nova de Famalicão, Portugal
- School of Health Sciences, University of Aveiro, 3810-193 Aveiro, Portugal
- Department of Medical Sciences, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Inês Costa
- Escola Superior de Saúde do Vale do Ave, Cooperativa de Ensino Superior Politécnico e Universitário, Rua José António Vidal, 81, 4760-409 Vila Nova de Famalicão, Portugal; (S.S.); (I.C.); (B.C.); (J.S.); (L.P.); (M.F.); (J.M.); (F.P.)
| | - Bruna Campos
- Escola Superior de Saúde do Vale do Ave, Cooperativa de Ensino Superior Politécnico e Universitário, Rua José António Vidal, 81, 4760-409 Vila Nova de Famalicão, Portugal; (S.S.); (I.C.); (B.C.); (J.S.); (L.P.); (M.F.); (J.M.); (F.P.)
| | - João Salgado
- Escola Superior de Saúde do Vale do Ave, Cooperativa de Ensino Superior Politécnico e Universitário, Rua José António Vidal, 81, 4760-409 Vila Nova de Famalicão, Portugal; (S.S.); (I.C.); (B.C.); (J.S.); (L.P.); (M.F.); (J.M.); (F.P.)
| | - Liliana Pinho
- Escola Superior de Saúde do Vale do Ave, Cooperativa de Ensino Superior Politécnico e Universitário, Rua José António Vidal, 81, 4760-409 Vila Nova de Famalicão, Portugal; (S.S.); (I.C.); (B.C.); (J.S.); (L.P.); (M.F.); (J.M.); (F.P.)
- H2M—Health and Human Movement Unit, Polytechnic University of Health, Cooperativa de Ensino Superior Politécnico e Universitário, CRL 4760-409 Vila Nova de Famalicão, Portugal
- Research Centre in Physical Activity, Health and Leisure, Faculty of Sport, University of Porto, Rua Dr. Plácido da Costa, 91, 4200-450 Porto, Portugal
- Center for Rehabilitation Research (Cir), R. Dr. António Bernardino de Almeida 400, 4200-072 Porto, Portugal
| | - Marta Freitas
- Escola Superior de Saúde do Vale do Ave, Cooperativa de Ensino Superior Politécnico e Universitário, Rua José António Vidal, 81, 4760-409 Vila Nova de Famalicão, Portugal; (S.S.); (I.C.); (B.C.); (J.S.); (L.P.); (M.F.); (J.M.); (F.P.)
- H2M—Health and Human Movement Unit, Polytechnic University of Health, Cooperativa de Ensino Superior Politécnico e Universitário, CRL 4760-409 Vila Nova de Famalicão, Portugal
- Research Centre in Physical Activity, Health and Leisure, Faculty of Sport, University of Porto, Rua Dr. Plácido da Costa, 91, 4200-450 Porto, Portugal
- Center for Rehabilitation Research (Cir), R. Dr. António Bernardino de Almeida 400, 4200-072 Porto, Portugal
| | - Paulo Carvalho
- Center for Translational Health and Medical Biotechnology Research, School of Health, Polytechnic Institute of Porto, 4200-072 Porto, Portugal;
| | - João Marques
- Escola Superior de Saúde do Vale do Ave, Cooperativa de Ensino Superior Politécnico e Universitário, Rua José António Vidal, 81, 4760-409 Vila Nova de Famalicão, Portugal; (S.S.); (I.C.); (B.C.); (J.S.); (L.P.); (M.F.); (J.M.); (F.P.)
- H2M—Health and Human Movement Unit, Polytechnic University of Health, Cooperativa de Ensino Superior Politécnico e Universitário, CRL 4760-409 Vila Nova de Famalicão, Portugal
| | - Francisco Pinho
- Escola Superior de Saúde do Vale do Ave, Cooperativa de Ensino Superior Politécnico e Universitário, Rua José António Vidal, 81, 4760-409 Vila Nova de Famalicão, Portugal; (S.S.); (I.C.); (B.C.); (J.S.); (L.P.); (M.F.); (J.M.); (F.P.)
- H2M—Health and Human Movement Unit, Polytechnic University of Health, Cooperativa de Ensino Superior Politécnico e Universitário, CRL 4760-409 Vila Nova de Famalicão, Portugal
| |
Collapse
|