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Ahmed S, Samuel AJ, Mishra A, Rahman MS, Islam MA, Rashaduzzaman M, Roy SK, Akter R, Islam MJ. Mobile game addiction and its association with musculoskeletal pain among students: A cross-sectional study. PLoS One 2024; 19:e0308674. [PMID: 39186761 DOI: 10.1371/journal.pone.0308674] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2024] [Accepted: 07/29/2024] [Indexed: 08/28/2024] Open
Abstract
BACKGROUND The purpose of this study was to ascertain whether there is a difference in musculoskeletal pain between those who are addicted to mobile games and those who are not, to ascertain the association between mobile game addiction and socio-demographic variables, and to ascertain the pain predictor for mobile game addiction on different musculoskeletal regions. METHODS There were 840 students in all, both males and females, in this cross-sectional survey from three distinct Bangladeshi institutions. The Nordic Musculoskeletal Discomfort Questionnaire, the Gaming Addiction Scale, and the demographic data form were distributed to the participants. The data were analyzed using the Chi-square test and descriptive statistics. Binary logistic regression was used to find the predicted risk factor for mobile gaming addiction. RESULTS Musculoskeletal pain affects 52.1% of participants in some part of the body. Males have a 2.01-fold higher likelihood of developing gaming addiction compared to females. Those who are addicted to mobile games experience a higher occurrence of pain in the neck, upper back, elbows, and wrist and hands with a odds ratio of (OR 2.84, 95% CI: 1.49-5.36; p = 0.016), (OR 3.75, 95% CI 1.97-7.12; p = <0.001), (OR 3.38, 95% CI 1.34-8.50; p = 0.010), and (OR 2.14, 95% CI 1.00-4.57; p = 0.049) respectively. CONCLUSION These results demonstrate that mobile gaming addiction raises students' risk of musculoskeletal discomfort. Two-three times higher risk of developing pain in the neck, upper back, elbows, and wrist and hands among mobile game addicts.
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Affiliation(s)
- Sohel Ahmed
- Ahmed Physiotherapy & Research Center, Dhaka, Bangladesh
- Directorate of Students' Welfare, Bangladesh University of Engineering and Technology, Dhaka, Bangladesh
| | - Asir John Samuel
- Yenepoya Physiotherapy College, Yenepoya (Deemed-to-be University), Naringana, Karnataka, India
| | - Arushi Mishra
- Department of Physiotherapy, Maharishi Markandeshwar Medical College and Hospital, Solan, Himachal Pradesh, India
| | - Md Saifur Rahman
- Department of Physiotherapy and Rehabilitation, Jashore University of Science and Technology, Jashore, Bangladesh
| | - Md Ariful Islam
- Department of Physiotherapy, Zaman Mordan Hospital, Sherpur, Bangladesh
| | | | - Shankar Kumar Roy
- Department of Orthopedics, MAG Osmani Medical College Hospital, Sylhet, Bangladesh
| | - Rahemun Akter
- Ahmed Physiotherapy & Research Center, Dhaka, Bangladesh
| | - Mohammad Jahirul Islam
- Department of Physical Medicine and Rehabilitation, MAG Osmani Medical College Hospital, Sylhet, Bangladesh
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Chidambaram V, Gopalsamy MM, M VR, Kanchan BK. Ergonomic investigations on novel dynamic postural estimator using blaze pose and transfer learning. ERGONOMICS 2024; 67:240-256. [PMID: 37264831 DOI: 10.1080/00140139.2023.2221411] [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: 12/12/2022] [Accepted: 05/31/2023] [Indexed: 06/03/2023]
Abstract
The aim is to develop a computer-based assessment model for novel dynamic postural evaluation using RULA. The present study proposed a camera-based, three-dimensional (3D) dynamic human pose estimation model using 'BlazePose' with a data set of 50,000 action-level-based images. The model was investigated using the Deep Neural Network (DNN) and Transfer Learning (TL) approach. The model has been trained to evaluate the posture with high accuracy, precision, and recall for each output prediction class. The model can quickly analyse the ergonomics of dynamic posture online and offline with a promising accuracy of 94.12%. A novel dynamic postural estimator using blaze pose and transfer learning is proposed and assessed for accuracy. The model is subjected to a constant muscle loading factor and foot support score that could evaluate one person with good image clarity at a time.Practitioner summary: A detailed investigation of dynamic work postures is largely missing in the literature. Experimental analysis has been performed using transfer learning, BlazePose, and RULA action levels. An overall accuracy of 94.12% is achieved for dynamic postural assessment.
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Affiliation(s)
- Vigneswaran Chidambaram
- Ergonomics Laboratory, Department of Production Engineering, PSG College of Technology, Tamilnadu, India
| | - Madhan Mohan Gopalsamy
- Ergonomics Laboratory, Department of Production Engineering, PSG College of Technology, Tamilnadu, India
| | - Vignesh Raja M
- Ergonomics Laboratory, Department of Production Engineering, PSG College of Technology, Tamilnadu, India
| | - Brajesh Kumar Kanchan
- Ergonomics Laboratory, Department of Production Engineering, PSG College of Technology, Tamilnadu, India
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Hong W. Advances and Opportunities of Mobile Health in the Postpandemic Era: Smartphonization of Wearable Devices and Wearable Deviceization of Smartphones. JMIR Mhealth Uhealth 2024; 12:e48803. [PMID: 38252596 PMCID: PMC10823426 DOI: 10.2196/48803] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2023] [Revised: 11/08/2023] [Accepted: 12/20/2023] [Indexed: 01/24/2024] Open
Abstract
Mobile health (mHealth) with continuous real-time monitoring is leading the era of digital medical convergence. Wearable devices and smartphones optimized as personalized health management platforms enable disease prediction, prevention, diagnosis, and even treatment. Ubiquitous and accessible medical services offered through mHealth strengthen universal health coverage to facilitate service use without discrimination. This viewpoint investigates the latest trends in mHealth technology, which are comprehensive in terms of form factors and detection targets according to body attachment location and type. Insights and breakthroughs from the perspective of mHealth sensing through a new form factor and sensor-integrated display overcome the problems of existing mHealth by proposing a solution of smartphonization of wearable devices and the wearable deviceization of smartphones. This approach maximizes the infinite potential of stagnant mHealth technology and will present a new milestone leading to the popularization of mHealth. In the postpandemic era, innovative mHealth solutions through the smartphonization of wearable devices and the wearable deviceization of smartphones could become the standard for a new paradigm in the field of digital medicine.
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Affiliation(s)
- Wonki Hong
- Department of Digital Healthcare, Daejeon University, Daejeon, Republic of Korea
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Gorce P, Jacquier-Bret J. Postural prevalence, time of day and spent time activities during smartphone weekday use among students: A survey to prevent musculoskeletal disorders. Heliyon 2023; 9:e22796. [PMID: 38125432 PMCID: PMC10731057 DOI: 10.1016/j.heliyon.2023.e22796] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Revised: 11/17/2023] [Accepted: 11/20/2023] [Indexed: 12/23/2023] Open
Abstract
The long time spent on smartphones in awkward postures exposes young users to the risk of developing musculoskeletal disorders (MSDs). This study aimed to investigate 1) how the duration of smartphone use varies by the time of day and activities and 2) the risks of MSDs based on an analysis of the postures used when interacting with smartphones. A cross-sectional survey was conducted among 263 university students. The duration of smartphone use during a typical weekday was investigated over four times of the day and seven activities. After checking for normality, a nonparametric Friedman test was used to study the differences in the time spent using a smartphone according to the time of day and activity. Postural prevalence during weekdays was analyzed using a taxonomy called SmarTaxo, consisting of 41 postures. The Rapid Upper Limb Assessment (RULA) ergonomic score was chosen to assess the MSD risks associated with each posture. Smartphone use was the highest in the evening (301.1 min; 95 % confidence interval [CI]: 277.4-324.8 min, p < 0.05). Texting (170.8 min; 95 % CI: 152.0-189.6 min) and watching videos (163.6 min; 95 % CI: 146.3-180.9 min) were the most common activities. Three sitting and two walking postures were primarily used in the morning (29.3-36.9 %), afternoon (27.0-44.4 %), and evening (28.9%-38.9 %). Standing postures were preferred in the morning and afternoon (36.9 % and 42.2 %, respectively), while one lying posture was widely reported in the evening (39.2 %). The RULA scores for these postures ranged from 3 to 4. However, four lying postures, often observed during the evening (frequency between 20.5 % and 37.6 % of the time), had RULA scores of 6. In conclusion, the study identified an existing MSD risk among smartphone users, especially with long durations of daily use. Special emphasis should be placed on addressing the reclining postures adopted during evening smartphone use, as they subject students to a significantly elevated risk of MSDs.
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Affiliation(s)
- Philippe Gorce
- International Institute of Biomechanics and Occupational Ergonomics, France
- Université de Toulon, CS60584-83041, Toulon, CEDEX 9, France
| | - Julien Jacquier-Bret
- International Institute of Biomechanics and Occupational Ergonomics, France
- Université de Toulon, CS60584-83041, Toulon, CEDEX 9, France
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Jacquier-Bret J, Gorce P. Effect of day time on smartphone use posture and related musculoskeletal disorders risk: a survey among university students. BMC Musculoskelet Disord 2023; 24:725. [PMID: 37700298 PMCID: PMC10496183 DOI: 10.1186/s12891-023-06837-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Accepted: 08/27/2023] [Indexed: 09/14/2023] Open
Abstract
BACKGROUND Musculoskeletal disorders (MSDs) are one of the most important problems among young smartphone users worldwide. Portability leads to a wide variety of postures during the different activities of the day. The objective evaluation of these postures coupled with ergonomic tools allows evaluating the level of MSD risk to which users are exposed. METHODS The purpose was to investigate the effect of the time of day on the posture adopted during smartphone use among university students. The study was conducted through a cross-sectional survey of 263 university sports students. Four time of day, i.e. morning, afternoon, evening and night, and a taxonomy of 41 postures called SmarTaxo were considered. SmarTaxo included 18 sitting, 11 standing, 10 lying and 2 walking postures and their ergonomic score. After checking the normality of the data, a non-parametric Kruskal-Wallis test was used to study the effect of the time of day on the use duration of the different postures. RESULTS The total mean duration use per typical weekday was 5.39 ± 2.19 h for males and 5.15 ± 1.60 h for females with maximal duration during evening. The average smartphone use durations were statistically longer in afternoon and evening for all sitting (9.44 and 9.22 min respectively, p < 0.05) and calling (3.38 and 3.33 min respectively, p < 0.05) postures. The longest duration for standing postures was recorded for afternoon (8.91 min, p < 0.05). The lying postures were significantly more present in evening (19.36 min). Some postures were more used during a time of day. The side-lying posture was used more in evening and has an ergonomic score of 6, i.e. a high MSD risk. CONCLUSIONS The survey showed that users are exposed to MSDs regardless of posture and time of day. Sitting postures are used more in the morning and afternoon while lying postures are used more in the evening. As long as the rate of use is so high (> 5 h per day), young people will remain highly exposed to MSDs.
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Affiliation(s)
- Julien Jacquier-Bret
- International Institute of Biomechanics and Occupational Ergonomics, Hyères, France.
- Université de Toulon, CS60584-83041, CEDEX 9, Toulon, France.
| | - Philippe Gorce
- International Institute of Biomechanics and Occupational Ergonomics, Hyères, France
- Université de Toulon, CS60584-83041, CEDEX 9, Toulon, France
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Titcomb DA, Melton BF, Miyashita T, Bland HW. The Effects of Postural Education or Corrective Exercise on the Craniovertebral Angle in Young Adults with Forward Head Posture: A Randomized Controlled Trial. INTERNATIONAL JOURNAL OF EXERCISE SCIENCE 2023; 16:954-973. [PMID: 37649869 PMCID: PMC10464763] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
Abstract
The purpose of this study was to compare the effects of three different intervention strategies, postural education (PE) and two corrective exercise programs (CEPs), on the craniovertebral angle (CVA) in young adults with forward head posture (FHP). A prospective four-arm parallel randomized controlled trial with repeated measures was performed. Seventy-nine healthy young adults (55 women, 24 men; mean age: 20.08 ± 2.19 years) with FHP were randomized into four groups: PE group, self-myofascial release + stretching group (SMRS), self-myofascial release + stretching + strengthening group (SMRSS), and a control group (CG). Participant CVA (°) was assessed before and after a 4-week intervention. Seventy-two participants completed the trial. Mean difference comparisons of within-group change in mean CVA revealed an increase in the PE (MD = 3.1, p < .01), SMRS (MD = 3.8, p < .01), and SMRSS (MD = 4.4, p < .01) groups. Mean difference comparison of between-group change in mean CVA supported greater CVA change in the SMRS and SMRSS groups compared to the CG (F(3, 68) = 5.26, p < .01, η2 = .188). All three interventions appear to be effective techniques for improving FHP in young adults, however CEPs may provide superior outcomes than PE alone. A 4-week CEP consisting of self-myofascial release + stretching may yield similar CVA enhancements as a CEP consisting of self-myofascial release + stretching + strengthening. Study findings can assist fitness professionals in designing evidence-based FHP intervention programs for young adults.
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Affiliation(s)
- David A Titcomb
- Department of Allied Health Professions, Liberty University, Lynchburg, VA, USA
- Department of Health Sciences and Human Performance, Concordia University-Chicago, River Forest, IL, USA
| | - Bridget F Melton
- Department of Health Sciences and Kinesiology, Georgia Southern University, Statesboro, GA, USA
| | - Theresa Miyashita
- Department of Health Sciences and Human Performance, Concordia University-Chicago, River Forest, IL, USA
| | - Helen W Bland
- Department of Health Policy and Community Health, Georgia Southern University, Statesboro, GA, USA
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Srirug P, Jongjit K, Muansri O, Somton Y, Kongbankhong N, Sengsoon P. Prevalence and factor associated work-related musculoskeletal disorders of students in virtual classroom. Heliyon 2023; 9:e18461. [PMID: 37520958 PMCID: PMC10382626 DOI: 10.1016/j.heliyon.2023.e18461] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Revised: 07/15/2023] [Accepted: 07/18/2023] [Indexed: 08/01/2023] Open
Abstract
Objective This study examined the prevalence of musculoskeletal disorders (MSDs) and their associated factors among 1st to 4th-year students at Walailak University who attended virtual classrooms for 1 week, 1 month, and 3 months. Method A cross-sectional study was conducted among 382 students aged 18-23 years with no history of musculoskeletal disease or psychiatric disorder who had at least three months of virtual classroom learning. Statistical analysis was performed using chi-squared and Fisher's exact tests. Results Most musculoskeletal abnormalities occurred in the shoulders, head and neck, and lower back at 1 week, 1 month, and 3 months, respectively. At one week and one month in virtual classrooms, the occurrence of MSDs among the students was correlated with psychosocial factors (p < 0.05), and at three months, MSDs were associated with personal factors such as body mass index and psychosocial factors (p < 0.05). Conclusion Stress management for students should be implemented in virtual classrooms to prevent MSDs.
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Affiliation(s)
- Phatcharawadee Srirug
- Department of Physical Therapy, School of Allied Health Sciences, Walailak University, Nakhon Si Thammarat, Thailand
- Movement Sciences and Exercise Research Center, Walailak University (MoveSE-WU), Nakhon Si Thammarat, Thailand
| | - Khemika Jongjit
- Department of Physical Therapy, School of Allied Health Sciences, Walailak University, Nakhon Si Thammarat, Thailand
| | - Orawanya Muansri
- Department of Physical Therapy, School of Allied Health Sciences, Walailak University, Nakhon Si Thammarat, Thailand
| | - Yanisa Somton
- Department of Physical Therapy, School of Allied Health Sciences, Walailak University, Nakhon Si Thammarat, Thailand
| | - Nutthida Kongbankhong
- Department of Physical Therapy, School of Allied Health Sciences, Walailak University, Nakhon Si Thammarat, Thailand
| | - Praphatson Sengsoon
- Department of Physical Therapy, School of Allied Health Sciences, Walailak University, Nakhon Si Thammarat, Thailand
- Movement Sciences and Exercise Research Center, Walailak University (MoveSE-WU), Nakhon Si Thammarat, Thailand
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Sala E, Cipriani L, Bisioli A, Paraggio E, Tomasi C, Apostoli P, De Palma G. A Twenty-Year Retrospective Analysis of Risk Assessment of Biomechanical Overload of the Upper Limbs in Multiple Occupational Settings: Comparison of Different Ergonomic Methods. Bioengineering (Basel) 2023; 10:bioengineering10050580. [PMID: 37237650 DOI: 10.3390/bioengineering10050580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Revised: 05/05/2023] [Accepted: 05/08/2023] [Indexed: 05/28/2023] Open
Abstract
BACKGROUND Several methods with which to assess the risk of biomechanical overload of the upper limb are described in the literature. METHODS We retrospectively analysed the results of the risk assessment of the biomechanical overload of the upper limb in multiple settings by comparing the application of the Washington State Standard, the threshold limit values (TLV) proposed by the American Conference of Governmental Industrial Hygienists (ACGIH), based on hand-activity levels (HAL) and normalised peak force (PF), the Occupational Repetitive Actions (OCRA) checklist, the Rapid Upper-Limb Assessment (RULA), and the Strain Index and Outil de Repérage et d'Evaluation des Gestes of INRS (Institut National de Recherche et de Sécurité). RESULTS Overall, 771 workstations were analysed for a total of 2509 risk assessments. The absence of risk demonstrated for the Washington CZCL, used as the screening method, was in good agreement with the other methods, with the sole exception of the OCRA CL, which showed at-risk conditions in a higher percentage of workstations. Differences in the assessment of the frequency of actions were observed among the methods, while their assessments of strength appeared to be more uniform. However, the greatest discrepancies were observed in the assessment of posture. CONCLUSIONS The use of multiple assessment methods ensures a more adequate analysis of biomechanical risk, allowing researchers to investigate the factors and segments in which different methods show different specificities.
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Affiliation(s)
- Emma Sala
- Unit of Occupational Health, Occupational Hygiene, Toxicology and Prevention, University Hospital ASST Spedali Civili, 25123 Brescia, Italy
| | - Lorenzo Cipriani
- Unit of Occupational Health and Industrial Hygiene, Department of Medical Surgical Specialties, Radiological Sciences and Public Health, University of Brescia, 25123 Brescia, Italy
| | - Andrea Bisioli
- Unit of Occupational Health and Industrial Hygiene, Department of Medical Surgical Specialties, Radiological Sciences and Public Health, University of Brescia, 25123 Brescia, Italy
| | - Emilio Paraggio
- Unit of Occupational Health and Industrial Hygiene, Department of Medical Surgical Specialties, Radiological Sciences and Public Health, University of Brescia, 25123 Brescia, Italy
| | - Cesare Tomasi
- Unit of Occupational Health and Industrial Hygiene, Department of Medical Surgical Specialties, Radiological Sciences and Public Health, University of Brescia, 25123 Brescia, Italy
| | - Pietro Apostoli
- Unit of Occupational Health and Industrial Hygiene, Department of Medical Surgical Specialties, Radiological Sciences and Public Health, University of Brescia, 25123 Brescia, Italy
| | - Giuseppe De Palma
- Unit of Occupational Health, Occupational Hygiene, Toxicology and Prevention, University Hospital ASST Spedali Civili, 25123 Brescia, Italy
- Unit of Occupational Health and Industrial Hygiene, Department of Medical Surgical Specialties, Radiological Sciences and Public Health, University of Brescia, 25123 Brescia, Italy
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Nowara R, Holzgreve F, Golbach R, Wanke EM, Maurer-Grubinger C, Erbe C, Brueggmann D, Nienhaus A, Groneberg DA, Ohlendorf D. Testing the Level of Agreement between Two Methodological Approaches of the Rapid Upper Limb Assessment (RULA) for Occupational Health Practice-An Exemplary Application in the Field of Dentistry. Bioengineering (Basel) 2023; 10:bioengineering10040477. [PMID: 37106664 PMCID: PMC10136304 DOI: 10.3390/bioengineering10040477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Revised: 04/11/2023] [Accepted: 04/12/2023] [Indexed: 04/29/2023] Open
Abstract
BACKGROUND The Rapid Upper Limb Assessment (RULA) is used for the risk assessment of workplace-related activities. Thus far, the paper and pen method (RULA-PP) has been predominantly used for this purpose. In the present study, this method was compared with an RULA evaluation based on kinematic data using inertial measurement units (RULA-IMU). The aim of this study was, on the one hand, to work out the differences between these two measurement methods and, on the other, to make recommendations for the future use of the respective method on the basis of the available findings. METHODS For this purpose, 130 (dentists + dental assistants, paired as teams) subjects from the dental profession were photographed in an initial situation of dental treatment and simultaneously recorded with the IMU system (Xsens). In order to compare both methods statistically, the median value of the difference of both methods, the weighted Cohen's Kappa, and the agreement chart (mosaic plot) were applied. RESULTS In Arm and Wrist Analysis-area A-here were differences in risk scores; here, the median difference was 1, and the agreement in the weighted Cohen's kappa test also remained between 0.07 and 0.16 (no agreement to poor agreement). In area B-Neck, Trunk, and Leg Analysis-the median difference was 0, with at least one poor agreement in the Cohen's Kappa test of 0.23-0.39. The final score has a median of 0 and a Cohen's Kappa value of 0.21-0.28. In the mosaic plot, it can be seen that RULA-IMU had a higher discriminatory power overall and more often reached a value of 7 than RULA-PP. CONCLUSION The results indicate a systematic difference between the methods. Thus, in the RULA risk assessment, RULA-IMU is mostly one assessment point above RULA-PP. Therefore, future study results of RULA by RULA-IMU can be compared with literature results obtained by RULA-PP to further improve the risk assessment of musculoskeletal diseases.
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Affiliation(s)
- Ramona Nowara
- Institute of Occupational Medicine, Social Medicine and Environmental Medicine, Goethe-University Frankfurt, 60596 Frankfurt am Main, Germany
| | - Fabian Holzgreve
- Institute of Occupational Medicine, Social Medicine and Environmental Medicine, Goethe-University Frankfurt, 60596 Frankfurt am Main, Germany
| | - Rejane Golbach
- Institute of Biostatistics and Mathematical Modelling, University Hospital Frankfurt, 60596 Frankfurt am Main, Germany
| | - Eileen M Wanke
- Institute of Occupational Medicine, Social Medicine and Environmental Medicine, Goethe-University Frankfurt, 60596 Frankfurt am Main, Germany
| | - Christian Maurer-Grubinger
- Institute of Occupational Medicine, Social Medicine and Environmental Medicine, Goethe-University Frankfurt, 60596 Frankfurt am Main, Germany
| | - Christina Erbe
- Department of Orthodontics, University Medical Center of the Johannes Gutenberg-University, 55131 Mainz, Germany
| | - Doerthe Brueggmann
- Institute of Occupational Medicine, Social Medicine and Environmental Medicine, Goethe-University Frankfurt, 60596 Frankfurt am Main, Germany
| | - Albert Nienhaus
- Competence Centre for Epidemiology and Health Services Research for Healthcare Professionals (CVcare), University Medical Centre Hamburg-Eppendorf (UKE), 20246 Hamburg, Germany
- Department of Occupational Medicine, Hazardous Substances and Public Health, Institution for Statutory Accident Insurance and Prevention in the Health and Welfare Services (Berufsgenossenschaft für Gesundheitsdienst und Wohlfahrtspflege-BGW), 22089 Hamburg, Germany
| | - David A Groneberg
- Institute of Occupational Medicine, Social Medicine and Environmental Medicine, Goethe-University Frankfurt, 60596 Frankfurt am Main, Germany
| | - Daniela Ohlendorf
- Institute of Occupational Medicine, Social Medicine and Environmental Medicine, Goethe-University Frankfurt, 60596 Frankfurt am Main, Germany
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10
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A Feasibility Study on the Conversion from Manual to Semi-Automatic Material Handling in an Oil and Gas Service Company. SAFETY 2023. [DOI: 10.3390/safety9010016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/12/2023] Open
Abstract
In manufacturing companies, manual material handling (MMH) involves lifting, pushing, pulling, carrying, moving, and lowering objects, which can lead to musculoskeletal disorders (MSDs) among workers, resulting in high labor costs due to excessive overtime incurred for manual product preparation. The aim of this study was to show how ergonomic measures were used to reduce the risk of MSDs and to reduce operating costs in the warehouse department of an oil and gas service company. A preliminary study using the Nordic Body Map survey showed that the workers experienced pain in various parts of the body, indicating the presence of MSDs. The researchers then used methods such as the Rapid Upper Limb Assessment (RULA), Rapid Entire Body Assessment (REBA), and National Institute for Occupational Safety and Health (NIOSH) assessments to verify whether the MMH activities had an acceptable level of risk. The results revealed that certain manual material handling (MMH) activities were assessed as low–very high risk, with RULA scores ranging from 3 to 7 and REBA scores ranging from 4 to 11. An immediate solution was to replace the manual process with a semi-automatic process using a vacuum lifter. A feasibility study was conducted using the net present value (NPV), internal rate of return (IRR), and payback period to justify the economic viability of the solution. The analysis indicated that implementing the vacuum lifter not only mitigated the risk of MSDs but also reduced the operating costs, demonstrating its viability and profitability. Overall, this study suggests that implementing a vacuum lifter as an assistive device in the warehouse would be a beneficial investment for both the workers and the company, improving both well-being and finances.
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González AK, Rodríguez-Reséndiz J, Gonzalez-Durán JEE, Olivares Ramírez JM, Estévez-Bén AA. Development of a Hip Joint Socket by Finite-Element-Based Analysis for Mechanical Assessment. Bioengineering (Basel) 2023; 10:bioengineering10020268. [PMID: 36829762 PMCID: PMC9952638 DOI: 10.3390/bioengineering10020268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Revised: 02/04/2023] [Accepted: 02/15/2023] [Indexed: 02/22/2023] Open
Abstract
This article evaluates a hip joint socket design by finite element method (FEM). The study was based on the needs and characteristics of a patient with an oncological amputation; however, the solution and the presented method may be generalized for patients with similar conditions. The research aimed to solve a generalized problem, taking a typical case from the study area as a reference. Data were collected on the use of the current improving prosthesis-specifically in interaction with its socket-to obtain information on the new approach design: this step constituted the work's starting point, where the problems to be solved in conventional designs were revealed. Currently, the development of this type of support does not consider the functionality and comfort of the patient. Research has reported that 58% of patients with sockets have rejected their use, because they do not fit comfortably and functionally; therefore, patients' low acceptance or rejection of the use of the prosthesis socket has been documented. In this study, different designs were evaluated, based on the FEM as scientific support for the results obtained, for the development of a new ergonomic fit with a 60% increase in patient compliance, that had correct gait performance when correcting postures, improved fit-user interaction, and that presented an esthetic fit that met the usability factor. The validation of the results was carried out through the physical construction of the prototype. The research showed how the finite element method improved the design, analyzing the structural behavioral, and that it could reduce cost and time instead of generating several prototypes.
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Affiliation(s)
- Ana Karen González
- Engineering Faculty, Universidad Autónoma de Querétaro, Querétaro 76010, Mexico
| | - Juvenal Rodríguez-Reséndiz
- Engineering Faculty, Universidad Autónoma de Querétaro, Querétaro 76010, Mexico
- Correspondence: (J.R.-R.); (J.M.O.R.)
| | | | - Juan Manuel Olivares Ramírez
- Department of Renewable Energy, Universidad Tecnológica de San Juan del Río, Querétaro 76800, Mexico
- Correspondence: (J.R.-R.); (J.M.O.R.)
| | - Adyr A. Estévez-Bén
- Engineering Faculty, Universidad Autónoma de Querétaro, Querétaro 76010, Mexico
- Chemistry Faculty, Universidad Autónoma de Querétaro, Querétaro 76010, Mexico
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12
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Gorce P, Jacquier‐Bret J. Three-month work-related musculoskeletal disorders assessment during manual lymphatic drainage in physiotherapists using Generic Postures notion. J Occup Health 2023; 65:e12420. [PMID: 37596728 PMCID: PMC10439309 DOI: 10.1002/1348-9585.12420] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Revised: 07/20/2023] [Accepted: 07/31/2023] [Indexed: 08/20/2023] Open
Abstract
OBJECTIVES The aim of this work was to quantify the postures and to assess the musculoskeletal disorders (MSDs) risk in physiotherapists repeating a manual lymphatic drainage (MLD) over a three-month period. The underlying hypothesis was that there would be Generic Postures (GP) that would be repeated and could be used to more simply describe repetitive and long-duration complex activities. METHODS The posture of five physiotherapists performing five 20-min MLD at their workplace was captured by two cameras. From the recordings, the adopted postures were extracted every 5 s and quantified through 13 joint angles, that is, 6594 analyzed postures. Rapid Upper Limb (RULA) and Rapid Entire Body Assessment (REBA) were used to assess MSDs risks. A hierarchical analysis was used to define GP. RESULTS Seven GP were identified through mean values and standard deviation. GP ergonomic assessment showed a low to moderate MSD risk (RULA between 3 and 6 and REBA between 2 and 7). High neck (>20°) and trunk (>15°) flexion were observed for all GP. High shoulder abduction and flexion (>40°) were evidenced for GP3 to GP5. GP1 was the most used (34%) and presented the lowest ergonomic scores (RULA: 4.46 ± 0.84; REBA: 5.06 ± 1.75). GP3 to GP6 had frequency of between 10 and 20%. GP5, GP6, and GP7 obtained the highest ergonomic scores (RULA>5; REBA>7). All physiotherapists use different GP combinations to perform MLD. CONCLUSION MLD could be described as a combination of GP. Ergonomic analysis showed that MLD exposes physiotherapists to low at moderate MSD risks.
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Affiliation(s)
- Philippe Gorce
- International Institute of Biomechanics and Occupational ErgonomicsToulonFrance
- Université de ToulonToulonFrance
- Hôpital Léon BérardHyèresFrance
| | - Julien Jacquier‐Bret
- International Institute of Biomechanics and Occupational ErgonomicsToulonFrance
- Université de ToulonToulonFrance
- Hôpital Léon BérardHyèresFrance
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13
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GÜÇHAN TOPÇU Z, ANGIN E, DEPRELİ O, YATAR İ, MIHÇIOĞLU S, TOMAÇ H. Relationships of Mobile Phone Use with the Functions and Disabilities of Neck and Upper Extremity. İSTANBUL GELIŞIM ÜNIVERSITESI SAĞLIK BILIMLERI DERGISI 2022. [DOI: 10.38079/igusabder.983050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
Aim: To determine the effects of mobile phone use on fine motor functions, neck, and upper limb disability values.Methods: Time duration of mobile phone use was recorded for a week. Rapid Upper Limb Assessment (RULA) was used to determine the risk level about posture while texting message on phones. Neck Disability Index (NDI) for neck pain and functional disability of neck on activities of daily life, Disabilities of the Arm, Shoulder, and Hand-Function/Symptom (DASH-FS) for the limitation in the functions of upper limb, Jebson Taylor Hand Function test for fine motor function.Results: Two hundred and seventy individuals (141 women, 129 men) whose mean ages were 21,48±1,86 years were included. While a significant correlation between duration of phone use and NDI score was specified (r=0,172; p=0,005), no significant correlation was found between duration of phone use and DASH-FS scores (r=0,092; p=0,130). It was found that there was a negative significant relationship between the duration of phone use and the total function score of the left hand and throwing small objects (p<0,01). According to RULA 95,6% of individuals have unacceptable phone usage postures, but no significant relationship was found between ergonomic risk level and NDI values, DASH-FS values, and hand functions (p>0,05).Conclusion: Although increased duration of phone use could cause neck problems, manual ability may be positively affected. In addition, since most participants have a poor posture while using a mobile phone, it is thought that this may be a risk factor for more musculoskeletal problems in older ages.
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14
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Pantano M, Yang Q, Blumberg A, Reisch R, Hauser T, Lutz B, Regulin D, Kamps T, Traganos K, Lee D. Influence of task decision autonomy on physical ergonomics and robot performances in an industrial human–robot collaboration scenario. Front Robot AI 2022; 9:943261. [PMID: 36237843 PMCID: PMC9551648 DOI: 10.3389/frobt.2022.943261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Accepted: 07/28/2022] [Indexed: 11/13/2022] Open
Abstract
Adoption of human–robot collaboration is hindered by barriers in collaborative task design. A new approach for solving these problems is to empower operators in the design of their tasks. However, how this approach may affect user welfare or performance in industrial scenarios has not yet been studied. Therefore, in this research, the results of an experiment designed to identify the influences of the operator’s self-designed task on physical ergonomics and task performance are presented. At first, a collaborative framework able to accept operator task definition via parts’ locations and monitor the operator’s posture is presented. Second, the framework is used to tailor a collaborative experience favoring decision autonomy using the SHOP4CF architecture. Finally, the framework is used to investigate how this personalization influences collaboration through a user study with untrained personnel on physical ergonomics. The results from this study are twofold. On one hand, a high degree of decision autonomy was felt by the operators when they were allowed to allocate the parts. On the other hand, high decision autonomy was not found to vary task efficiency nor the MSD risk level. Therefore, this study emphasizes that allowing operators to choose the position of the parts may help task acceptance and does not vary operators’ physical ergonomics or task efficiency. Unfortunately, the test was limited to 16 participants and the measured risk level was medium. Therefore, this study also stresses that operators should be allowed to choose their own work parameters, but some guidelines should be followed to further reduce MSD risk levels.
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Affiliation(s)
- Matteo Pantano
- Functional Materials and Manufacturing Processes, Technology Department, Siemens Aktiengesellschaft, Munich, Germany
- Human-Centered Assistive Robotics (HCR), Department of Electrical and Computer Engineering, Technical University of Munich (TUM), Munich, Germany
- *Correspondence: Matteo Pantano,
| | - Qiaoyue Yang
- Human-Centered Assistive Robotics (HCR), Department of Electrical and Computer Engineering, Technical University of Munich (TUM), Munich, Germany
| | - Adrian Blumberg
- Functional Materials and Manufacturing Processes, Technology Department, Siemens Aktiengesellschaft, Munich, Germany
| | - Raven Reisch
- Functional Materials and Manufacturing Processes, Technology Department, Siemens Aktiengesellschaft, Munich, Germany
| | - Tobias Hauser
- Functional Materials and Manufacturing Processes, Technology Department, Siemens Aktiengesellschaft, Munich, Germany
| | - Benjamin Lutz
- Functional Materials and Manufacturing Processes, Technology Department, Siemens Aktiengesellschaft, Munich, Germany
| | - Daniel Regulin
- Functional Materials and Manufacturing Processes, Technology Department, Siemens Aktiengesellschaft, Munich, Germany
| | - Tobias Kamps
- Functional Materials and Manufacturing Processes, Technology Department, Siemens Aktiengesellschaft, Munich, Germany
| | - Konstantinos Traganos
- Industrial Engineering and Innovation Sciences, School of Industrial Engineering, Eindhoven University of Technology, Eindhoven, Netherlands
| | - Dongheui Lee
- Autonomous Systems, Technische Universität Wien, Vienna, Austria
- Institute of Robotics and Mechatronics, German Aerospace Center (DLR), Wessling, Germany
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15
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Wah SW, Chatchawan U, Chatprem T, Puntumetakul R. Prevalence of Static Balance Impairment and Associated Factors of University Student Smartphone Users with Subclinical Neck Pain: Cross-Sectional Study. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:10723. [PMID: 36078439 PMCID: PMC9518560 DOI: 10.3390/ijerph191710723] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Revised: 08/19/2022] [Accepted: 08/25/2022] [Indexed: 06/15/2023]
Abstract
The aim of this study was to assess the prevalence of static balance impairment in university student smartphone users with subclinical neck pain and identify the associated risk factors. Because of rapid and widespread smartphones use, and the subsequent effect on neck pain in university students, it is essential to determine the prevalence of balance impairment and associated factors in this population. Simple random sampling was completed among eighty-one participants in this cross-sectional study. A self-reported questionnaire, fitted precisely for smartphone users, was used prior to clinical assessment by the Balance Error Scoring System. Both simple and multiple logistic regressions were used to analyze the prevalence of static balance impairment and associated factors. The prevalence of static balance impairment in university student smartphone users with subclinical neck pain was 74.07% (95% CI: 64.32 to 83.82). The significant risk factors were "daily smartphone use ≥ 4 h'' (AOR: 19.24 (95% CI 4.72 to 78.48) p = 0.000), "≥4 years of smartphone use" (AOR: 5.01 (95% CI 1.12 to 22.38) p = 0.035), and "≥7 neck disability index score'' (AOR: 12.91 (95% CI 2.24 to 74.45) p = 0.004). There was a high prevalence of static balance impairment in university smartphone users with subclinical neck pain. University student smartphone users with subclinical neck pain who met at least one of the risk factors should realize their static balance impairment.
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Affiliation(s)
- Saw Wah Wah
- Human Movement Sciences, School of Physical Therapy, Faculty of Associated Medical Sciences, Khon Kaen University, Khon Kaen 40002, Thailand
- Research Center of Back, Neck, Other Joint Pain and Human Performance (BNOJPH), Khon Kaen University, Khon Kaen 40002, Thailand
| | - Uraiwan Chatchawan
- Research Center of Back, Neck, Other Joint Pain and Human Performance (BNOJPH), Khon Kaen University, Khon Kaen 40002, Thailand
- School of Physical Therapy, Faculty of Associated Medical Sciences, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Thiwaphon Chatprem
- Research Center of Back, Neck, Other Joint Pain and Human Performance (BNOJPH), Khon Kaen University, Khon Kaen 40002, Thailand
- School of Physical Therapy, Faculty of Associated Medical Sciences, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Rungthip Puntumetakul
- Research Center of Back, Neck, Other Joint Pain and Human Performance (BNOJPH), Khon Kaen University, Khon Kaen 40002, Thailand
- School of Physical Therapy, Faculty of Associated Medical Sciences, Khon Kaen University, Khon Kaen 40002, Thailand
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16
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Ahn SH, Jung SH, Kim HA, Kim JH, Weon YS, Kwon OY. Differences in neck muscle activity according to lying positions using a smartphone. J Back Musculoskelet Rehabil 2022; 35:383-391. [PMID: 34334376 DOI: 10.3233/bmr-200315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
BACKGROUND Due to the extended use of smartphones, people spend a lot of time on these devices while lying down. OBJECTIVE The purpose of the present study was to compare the differences in neck muscle activity of participants while they watched videos on a smartphone in four different lying positions (supine (SUP), prone on elbows (PE), side lying (SIDE), and 45∘ head turn while side lying (45-SIDE)). METHODS Twenty-three healthy volunteers (22.4 ± 1.7 years) were enrolled in this study. We assessed the activities of their right and left sternocleidomastoid (SCM), anterior scalene, cervical erector spinae (CES), and upper trapezius (UT) muscles while they watched videos on a smartphone in four different lying positions. RESULTS The right and left SCM and CES had significantly different muscle activities depending on the lying positions. The SCM activity had a significantly greater asymmetry in the 45-SIDE position, while the CES activity had a significantly greater asymmetry in the SIDE and 45-SIDE positions. Moreover, the UT activity had a significantly greater asymmetry in the SUP, PE, and SIDE positions. CONCLUSIONS Neck muscle activity and asymmetry were the lowest in the SUP position relative to the other positions. Therefore, lying down in the SUP position may minimize neck muscle activation while using a smartphone.
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Affiliation(s)
- Sun-Hee Ahn
- Department of Rehabilitation Therapy, Graduate School, Yonsei University, Wonju, Korea
| | - Sung-Hoon Jung
- Department of Rehabilitation Therapy, Graduate School, Yonsei University, Wonju, Korea
| | - Hyun-A Kim
- Department of Physical Therapy, Graduate School of Medicine, Nagoya University, Aichi, Japan
| | - Jun-Hee Kim
- Department of Rehabilitation Therapy, Graduate School, Yonsei University, Wonju, Korea
| | - Young-Soo Weon
- Department of Rehabilitation Therapy, Graduate School, Yonsei University, Wonju, Korea
| | - Oh-Yun Kwon
- Department of Physical Therapy, College of Health Science, Laboratory of Kinetic Ergocise Based on Movement Analysis, Yonsei University, Wonju, Korea
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17
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Peng S, Wang A, Lian Y, Zhang X, Zeng B, Chen Q, Yang H, Li J, Li L, Dan J, Liao J, Zhou S. Smartphone-based molecularly imprinted sensors for rapid detection of thiamethoxam residues and applications. PLoS One 2021; 16:e0258508. [PMID: 34748559 PMCID: PMC8575258 DOI: 10.1371/journal.pone.0258508] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Accepted: 09/28/2021] [Indexed: 11/19/2022] Open
Abstract
In order to achieve rapid detection of thiamethoxam residues in mango, cowpea and water, this study modified the screen printed carbon electrode (SPCE) to make a specific molecular imprinting sensor (Thiamethoxam-MIP/Au/rGO/SPCE) for thiamethoxam. An integrated smartphone platform was also built for thiamethoxam residue analysis. The performance of the complete system was analyzed by cyclic voltammetry (CV) and differential pulse voltammetry (DPV). The system was then applied for the rapid determination of thiamethoxam residues in water, mango and cowpea samples. The results showed that the molecular sensor showed good linearity in the range 0.5–3.0 μmol/L of thiamethoxam. The detection limit of thiamethoxam was 0.5 μmol/L. Moreover, the sensor had good reproducibility and anti-interference performance. The average recovery rates of the pesticide residues in water, mango and cowpea samples were in the range of 90–110% with relative standard deviations < 5%. The rapid detection system for thiamethoxam residue constructed in this study was simple, reliable, reproducible and had strong anti-interference. It has broad application prospects in the field detection of thiamethoxam residue, and serves as a valuable reference for the further development of rapid detection technology of pesticide residues in the field of environment and food safety.
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Affiliation(s)
- Sihua Peng
- Sanya Nanfan Research Institute of Hainan University, Hainan, China
- College of Plant Protection, Hainan University, Hainan, China
| | - Aqiang Wang
- Sanya Nanfan Research Institute of Hainan University, Hainan, China
| | - Yuyang Lian
- Sanya Nanfan Research Institute of Hainan University, Hainan, China
| | - Xi Zhang
- Sanya Nanfan Research Institute of Hainan University, Hainan, China
| | - Bei Zeng
- College of Plant Protection, Hainan University, Hainan, China
| | - Qiulin Chen
- Sanya Nanfan Research Institute of Hainan University, Hainan, China
| | - Heming Yang
- Sanya Nanfan Research Institute of Hainan University, Hainan, China
| | - Jinlei Li
- Sanya Nanfan Research Institute of Hainan University, Hainan, China
| | - Limin Li
- Sanya Nanfan Research Institute of Hainan University, Hainan, China
| | - Jianguo Dan
- College of Plant Protection, Hainan University, Hainan, China
- * E-mail: (JD); (JL); (SZ)
| | - Jianjun Liao
- College of Ecology and Environment, Hainan University, Hainan, China
- * E-mail: (JD); (JL); (SZ)
| | - Shihao Zhou
- Sanya Nanfan Research Institute of Hainan University, Hainan, China
- Key Laboratory of Germplasm Resources Biology of Tropical Special Ornamental Plants, College of Forestry, Hainan University, Hainan, China
- * E-mail: (JD); (JL); (SZ)
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18
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Liu G, Dobbins C, D'Souza M, Phuong N. Analysis of Biometric Sensor Data for Predicting Fatigue: A Framework Towards Reducing Work-Related Musculoskeletal Disorders in Aviation Manufacturing Workers. ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. ANNUAL INTERNATIONAL CONFERENCE 2021; 2021:6928-6932. [PMID: 34892697 DOI: 10.1109/embc46164.2021.9631033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Work-Related Musculoskeletal Disorders (WMSDs) transpire when injuries to the musculoskeletal system (e.g. muscles, ligaments, tendons, and nerves) occur due to high fatigue inducing work-related activities, where repetitive movements and muscle strain are prevalent. However, it is challenging to quantify the risk of injury due to the assortment of tasks that factory workers may perform. Nevertheless, wearable sensors are a viable outlet that can unobtrusively capture biometric data in order to calculate objective measures, such as fatigue, which increases the risk of developing WMSDs. This paper presents a novel wearable sensor-based ergonomic monitoring system (ErgoRelief), which has been designed to predict fatigue within the context of aviation factory work. An experiment has been undertaken whereby thirty participants completed a series of repetitive tasks whilst wearing our sensor system. Results of multiple linear regression models demonstrate a maximum Adjusted R2 Score of 0.9259.
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19
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Wah SW, Puntumetakul R, Boucaut R. Effects of Proprioceptive and Craniocervical Flexor Training on Static Balance in University Student Smartphone Users with Balance Impairment: A Randomized Controlled Trial. J Pain Res 2021; 14:1935-1947. [PMID: 34234540 PMCID: PMC8242145 DOI: 10.2147/jpr.s312202] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Accepted: 06/02/2021] [Indexed: 11/30/2022] Open
Abstract
Purpose University student smartphone users adopt flexed neck postures during smartphone use, creating an increased compressive load on their neck structures. This study was conducted to compare the effects of proprioceptive and craniocervical flexor training with a control group on static balance in a group of university student smartphone users with balance impairment. Methods A double-blinded, randomized controlled trial was conducted involving 42 university students (19.67±1.68 years old) with balance impairment. Participants were randomized into a proprioceptive training (ProT) group (n=14), a craniocervical flexor training (CCFT) group (n=14), and a control group (CG; n=14) for a 6-week intervention. The balance error scoring system (BESS), cervical joint position sense (CJPS), craniocervical flexion (CCF) test, and visual analog scale (VAS) for neck pain were evaluated using univariate analysis of covariance (ANCOVA). Results After 6 weeks of intervention, the ProT group showed significantly greater improvement of CJPS than the CG (p=0.000) and the CCFT group significantly improved of CCF test than CG (p=0.002). Findings, at 4 weeks after intervention, were (i) the ProT group had significantly more improvement in BESS than the CCFT group (p=0.014) and CG (p=0.003), (ii) the ProT group had significantly more improvement of CJPS than the CG (right and left rotate) (p=0.001, p=0.016, respectively) and CCFT group (right rotate) (p=0.004), (iii) the CCFT group had significantly more improvement of craniocervical flexor strength than CG (p=0.004), and (iv) the ProT group and CCFT group had significantly more decreased pain than CG (p=0.015, p=0.033, respectively). No adverse effects occurred during or after training in any group. Conclusion ProT is important for regaining static balance and CJPS, while CCFT improved craniocervical flexor strength. Moreover, both ProT and CCFT can reduce neck pain. We recommend performing ProT to improve static balance, CJPS and to reduce neck pain in smartphone users with static balance impairment. Clinical Trail Registration Number TCTR20190909003.
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Affiliation(s)
- Saw Wah Wah
- Human Movement Sciences, School of Physical Therapy, Faculty of Associated Medical Sciences, Khon Kaen University, Khon Kaen, 40002, Thailand.,Research Center in Back, Neck, Other Joint Pain and Human Performance, Khon Kaen University, Khon Kaen, 40002, Thailand
| | - Rungthip Puntumetakul
- Research Center in Back, Neck, Other Joint Pain and Human Performance, Khon Kaen University, Khon Kaen, 40002, Thailand.,School of Physical Therapy, Faculty of Associated Medical Sciences, Khon Kaen University, Khon Kaen, 40002, Thailand
| | - Rose Boucaut
- International Centre for Allied Health Evidence, University of South Australia, Adelaide, SA, 5001, Australia.,University of South Australia: Allied Health and Human Performance, Adelaide, SA, 5001, Australia
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20
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Smartphone Addiction in Adolescents, part 2: Scoping Review—Prevalence and Associated Factors. TRENDS IN PSYCHOLOGY 2021. [DOI: 10.1007/s43076-020-00040-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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21
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Li L, Martin T, Xu X. A novel vision-based real-time method for evaluating postural risk factors associated with musculoskeletal disorders. APPLIED ERGONOMICS 2020; 87:103138. [PMID: 32501254 DOI: 10.1016/j.apergo.2020.103138] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Revised: 03/31/2020] [Accepted: 04/21/2020] [Indexed: 06/11/2023]
Abstract
Real-time risk assessment for work-related musculoskeletal disorders (MSD) has been a challenging research problem. Previous methods such as using depth cameras suffered from limited visual range and wearable sensors could cause intrusiveness to the workers, both of which are less feasible for long-run on-site applications. This document examines a novel end-to-end implementation of a deep learning-based algorithm for rapid upper limb assessment (RULA). The algorithm takes normal RGB images as input and outputs the RULA action level, which is a further division of RULA grand score. Lifting postures collected in laboratory and posture data from Human 3.6 (a public human pose dataset) were used for training and evaluating the algorithm. Overall, the algorithm achieved 93% accuracy and 29 frames per second efficiency for detecting the RULA action level. The results also indicate that using data augmentation (a strategy to diversify the training data) can significantly improve the robustness of the model. The proposed method demonstrates its high potential for real-time on-site risk assessment for the prevention of work-related MSD. A demo video can be found at https://github.com/LLDavid/RULA_2DImage.
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Affiliation(s)
- Li Li
- Edward P.Fitts Department of Industrial & Systems Engineering, North Carolina State University, Raleigh, NC 27695, USA
| | - Tara Martin
- Edward P.Fitts Department of Industrial & Systems Engineering, North Carolina State University, Raleigh, NC 27695, USA
| | - Xu Xu
- Edward P.Fitts Department of Industrial & Systems Engineering, North Carolina State University, Raleigh, NC 27695, USA.
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22
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Gómez-Galán M, Callejón-Ferre ÁJ, Pérez-Alonso J, Díaz-Pérez M, Carrillo-Castrillo JA. Musculoskeletal Risks: RULA Bibliometric Review. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:E4354. [PMID: 32560566 PMCID: PMC7345928 DOI: 10.3390/ijerph17124354] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/30/2020] [Revised: 06/11/2020] [Accepted: 06/15/2020] [Indexed: 02/05/2023]
Abstract
The objective of this study was to reveal RULA method applications in terms of the knowledge, country, year and journal categories. The search was performed using the "Web of Science Core Collection". The period from 1993 to April 2019 was selected. Eight hundred nine results were obtained, of which 226 were used. The largest number of publications was determined to be in the fields of industry and health and social assistance, which coincides with the OWAS and Standardized Nordic Questionnaire methods. By country, the USA stands out for its greater number of research studies and categories that are encompassed. By date, 2016 was the year when more studies were carried out, again coinciding with the Standardized Nordic Questionnaire. By journal, "Work-A Journal of Prevention Assessment and Rehabilitation" is highlighted, as it is for the REBA method as well. It was concluded that RULA can be applied to workers in different fields, usually in combination with other methods, while technological advancement provides benefits for its application.
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Affiliation(s)
- Marta Gómez-Galán
- Department of Engineering, University of Almería, Research Center CIMEDES (CeiA3), 04120 Almería, Spain
| | - Ángel-Jesús Callejón-Ferre
- Department of Engineering, University of Almería, Research Center CIMEDES (CeiA3), 04120 Almería, Spain
- Laboratory-Observatory Andalusian Working Conditions in the Agricultural Sector (LASA), 41092 Seville, Spain
| | - José Pérez-Alonso
- Department of Engineering, University of Almería, Research Center CIMEDES (CeiA3), 04120 Almería, Spain
| | - Manuel Díaz-Pérez
- Department of Engineering, University of Almería, Research Center CIMEDES (CeiA3), 04120 Almería, Spain
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23
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Radwan NL, Ibrahim MM, Mahmoud WSED. Evaluating hand performance and strength in children with high rates of smartphone usage: an observational study. J Phys Ther Sci 2020; 32:65-71. [PMID: 32082032 PMCID: PMC7008026 DOI: 10.1589/jpts.32.65] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2019] [Accepted: 10/28/2019] [Indexed: 12/02/2022] Open
Abstract
[Purpose] This study investigated the interaction effects between the levels of
smartphone use and hand dominance on handgrip, pinch strengths, and functional hand
performance in children. [Participants and Methods] A total of 60 children aged between 9
and 15 were assigned into two groups: Group A (high-frequency smartphone users) and Group
B (low-frequency smartphone users). Use levels were determined according to the smartphone
addiction scale-short version. A hand dynamometer and pinch gauge were used to measure
handgrip and pinch strength respectively. Functions of the upper extremity and hand were
scored using the Quick Disabilities of the Arm, Shoulder, and Hand questionnaire.
[Results] Group A participants had reduced measurements in hand grip and pinch strength,
especially in the dominant hand. However, Quick Disabilities of the Arm, Shoulder, and
Hand scores indicated that hand function was decreased in the dominant hand whether the
child was a high- or low-frequency smartphone user. [Conclusion] Results indicated that
high levels of smartphone use diminished hand and pinch-grip strengths as well as and hand
function. That is, hand and pinch-grip strengths were reduced in the dominant hands of
high-frequency smartphone users. However, hand functions were affected in the dominant
hands among both high and low-level smartphone users.
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Affiliation(s)
- Nadia L Radwan
- Department of Biomechanics, Faculty of Physical Therapy, Cairo University, Egypt.,Department of Physical Therapy and Health Rehabilitation, College of Applied Medical Sciences, Prince Sattam bin Abdulaziz University: Riyadh, Alkharj, Saudi Arabia
| | - Marwa M Ibrahim
- Department of Physical Therapy for Growth and Development Disorders in Children and Its Surgery, Faculty of Physical Therapy, Cairo University, Egypt.,Department of Physical Therapy and Health Rehabilitation, College of Applied Medical Sciences, Prince Sattam bin Abdulaziz University: Riyadh, Alkharj, Saudi Arabia
| | - Waleed Salah El-Din Mahmoud
- Department of Physical Therapy and Health Rehabilitation, College of Applied Medical Sciences, Prince Sattam bin Abdulaziz University: Riyadh, Alkharj, Saudi Arabia.,Department of Basic Sciences, Faculty of Physical Therapy, Cairo University, Egypt
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Namwongsa S, Puntumetakul R, Neubert MS, Boucaut R. Effect of neck flexion angles on neck muscle activity among smartphone users with and without neck pain. ERGONOMICS 2019; 62:1524-1533. [PMID: 31451087 DOI: 10.1080/00140139.2019.1661525] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2018] [Accepted: 06/25/2019] [Indexed: 06/10/2023]
Abstract
This study examined the differences in neck muscle activity at various neck flexion angles in smartphone users with and without neck pain. Forty-four participants performed texting tasks for 1 min and 30 s. Neck muscle activity and pain in the neck were measured at different neck flexion angles. There was a difference in neck muscle activity for each of the neck flexion angles; the Cervical Erector Spinae (CES) muscle activity increased while the Upper Trapezius (UT) muscle activity decreased when at increased neck flexion angles. At neck flexion angle of 0°-15°, the activity of both CES and UT muscles were acceptably low. Smartphone users with neck pain had slightly higher muscle activity levels than smartphone users without neck pain. In conclusion, smartphone users should consider adopting neck flexion angles between 0 and 15 degrees during smartphone use as there is an association between this neck flexion angle range and reduced CES muscle activity. Practitioner summary: This study demonstrated that both smartphone users with and without neck pain should try to keep their neck flexion angle between 0° and 15° when using their smartphone. This would reduce neck muscle activity and the risk of developing neck disorders associated with smartphone use.
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Affiliation(s)
- Suwalee Namwongsa
- Research Center in Back, Neck, Other Joint Pain and Human Performance (BNOJPH), Khon Kaen University , Khon Kaen , Thailand
- School of Physical Therapy, Faculty of Associated Medical Sciences, Khon Kaen University , Khon Kaen , Thailand
| | - Rungthip Puntumetakul
- Research Center in Back, Neck, Other Joint Pain and Human Performance (BNOJPH), Khon Kaen University , Khon Kaen , Thailand
- School of Physical Therapy, Faculty of Associated Medical Sciences, Khon Kaen University , Khon Kaen , Thailand
| | - Manida Swangnetr Neubert
- Research Center in Back, Neck, Other Joint Pain and Human Performance (BNOJPH), Khon Kaen University , Khon Kaen , Thailand
- Program of Production Technology, Faculty of Technology, Khon Kaen University , Khon Kaen , Thailand
| | - Rose Boucaut
- School of Health Sciences (Physiotherapy), iCAHE (International Centre for Allied Health Evidence), University of South Australia , Adelaide , Australia
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