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Article: Work-Related Musculoskeletal Disorders Risk Assessment during Manual Lymphatic Drainage with Compressive Bands among Physiotherapists.

Jacquier-Bret, Julien / Gorce, Philippe

2024 Volume 12, Issue 1

Abstract: Background: Complete decongestive therapy is the standard treatment for lymphedema. Manual lymphatic drainage and short-stretch multilayer compression bandaging are two daily stages of complete decongestive therapy during which physiotherapists work ... ...

Abstract	Background: Complete decongestive therapy is the standard treatment for lymphedema. Manual lymphatic drainage and short-stretch multilayer compression bandaging are two daily stages of complete decongestive therapy during which physiotherapists work with patients. Objective: The aim of this study was to assess the risks of musculoskeletal disorders to which physiotherapists are exposed during these two phases. Method: Five physiotherapists performed five 20 min manual lymphatic drainages, followed by the compression bandaging phase. From the video recordings, 8477 postures defined by 13 joint angles were grouped into clusters using hierarchical cluster analysis. The risk of musculoskeletal disorders in physiotherapists' postures was assessed using ergonomic tools. Results: Seven clusters, called generic postures (GP), were identified and defined throughout the mean joint angle values and standard deviation. Four seated GPs were found for the drainage phase, and three standing GPs were identified for the bandaging phase. This phase corresponded to a quarter of the total duration. The GP's ergonomic scores ranged from 4.51 to 5.63 and from 5.08 to 7.12, respectively, for the Rapid Upper Limb Assessment (RULA) and Rapid Entire Body Assessment (REBA). GP1, GP3, and GP4 presented the highest ergonomic scores (RULA scores: 5.27 to 5.63; REBA scores: 6.25 to 7.12). The most affected areas were the neck (flexion > 20° for all GPs), trunk (flexion between 25 and 30° for GP2, and GP7 during the bandaging phase and GP4 during the drainage phase), and shoulder (flexion and abduction >20° for all GPs except GP5). Conclusions: These results highlighted that the two complete decongestive therapy phases could be described as a combination of GP. Ergonomic assessment showed that compression bandaging as well as drainage phases expose physiotherapists to moderate musculoskeletal disorder risks that require "further investigation and change soon".
Language	English
Publishing date	2024-01-04
Publishing country	Switzerland
Document type	Journal Article
ZDB-ID	2721009-1
ISSN	2227-9032
ISSN	2227-9032
DOI	10.3390/healthcare12010118
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Article ; Online: Polarization coherence frustration.

Réfrégier, Philippe / Fade, Julien

Journal of the Optical Society of America. A, Optics, image science, and vision

2024 Volume 41, Issue 4, Page(s) 643–653

Abstract: From the joint analysis of polarization and coherence properties of light, a remarkable concept referred to as polarization coherence frustration is introduced and analyzed. It is shown that two kinds of partially polarized and partially coherent light, ... ...

Abstract	From the joint analysis of polarization and coherence properties of light, a remarkable concept referred to as polarization coherence frustration is introduced and analyzed. It is shown that two kinds of partially polarized and partially coherent light, with different levels of complexity, can be distinguished and that they mathematically correspond to different equivalence classes. On the one hand, light has polarization coherence properties that are not frustrated in a spatial domain
Language	English
Publishing date	2024-04-03
Publishing country	United States
Document type	Journal Article
ZDB-ID	283633-6
ISSN	1520-8532 ; 1084-7529 ; 0740-3232
ISSN (online)	1520-8532
ISSN	1084-7529 ; 0740-3232
DOI	10.1364/JOSAA.515960
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Article ; Online: Modeling Acute Myeloid Leukemia Using StarPEG-Heparin Hydrogels.

Holloway, P Lewen / Ravichandran, Akhilandeshwari / Clegg, Julien / Bruedigam, Claudia / Bray, Laura J

Methods in molecular biology (Clifton, N.J.)

2024 Volume 2764, Page(s) 61–73

Abstract: Biomimetic semi-synthetic hydrogels formed from a combination of star-shaped poly(ethylene glycol) (starPEG) and the glycosaminoglycan, heparin, allows for the three-dimensional (3D) culture of various cells and tissues. In this chapter, we describe ... ...

Abstract	Biomimetic semi-synthetic hydrogels formed from a combination of star-shaped poly(ethylene glycol) (starPEG) and the glycosaminoglycan, heparin, allows for the three-dimensional (3D) culture of various cells and tissues. In this chapter, we describe methods for the use of starPEG-heparin hydrogels to cultivate primary and immortalized human acute myeloid leukemia (AML) cells. The resulting 3D culture models allow for the study of AML development and response to chemotherapeutic agents.
MeSH term(s)	Humans ; Heparin ; Hydrogels ; Glycosaminoglycans ; Leukemia, Myeloid, Acute/drug therapy ; Polyethylene Glycols
Chemical Substances	Heparin (9005-49-6) ; Hydrogels ; Glycosaminoglycans ; Polyethylene Glycols (3WJQ0SDW1A)
Language	English
Publishing date	2024-02-23
Publishing country	United States
Document type	Journal Article
ISSN	1940-6029
ISSN (online)	1940-6029
DOI	10.1007/978-1-0716-3674-9_6
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Article ; Online: Effect of day time on smartphone use posture and related musculoskeletal disorders risk: a survey among university students.

Jacquier-Bret, Julien / Gorce, Philippe

BMC musculoskeletal disorders

2023 Volume 24, Issue 1, Page(s) 725

Abstract: ... 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 ...

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.
MeSH term(s)	Female ; Male ; Humans ; Adolescent ; Cross-Sectional Studies ; Smartphone ; Universities ; Posture ; Musculoskeletal Diseases/diagnosis ; Musculoskeletal Diseases/epidemiology ; Musculoskeletal Diseases/etiology ; Students
Language	English
Publishing date	2023-09-12
Publishing country	England
Document type	Journal Article
ZDB-ID	2041355-5
ISSN	1471-2474 ; 1471-2474
ISSN (online)	1471-2474
ISSN	1471-2474
DOI	10.1186/s12891-023-06837-5
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Article ; Online: Three-month work-related musculoskeletal disorders assessment during manual lymphatic drainage in physiotherapists using Generic Postures notion.

Gorce, Philippe / Jacquier-Bret, Julien

Journal of occupational health

2023 Volume 65, Issue 1, Page(s) e12420

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 ... ...

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.
MeSH term(s)	Humans ; Manual Lymphatic Drainage ; Physical Therapists ; Upper Extremity ; Posture ; Musculoskeletal Diseases ; Ergonomics ; Occupational Diseases/etiology
Language	English
Publishing date	2023-08-18
Publishing country	Australia
Document type	Journal Article
ZDB-ID	1340985-2
ISSN	1348-9585 ; 1341-9145
ISSN (online)	1348-9585
ISSN	1341-9145
DOI	10.1002/1348-9585.12420
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Article ; Online: Perianal fistulizing Crohn's disease and overall risk of cancer: No red flag.

McLellan, Paul / Kirchgesner, Julien

United European gastroenterology journal

2023 Volume 11, Issue 5, Page(s) 401–402

MeSH term(s)	Humans ; Crohn Disease/complications ; Crohn Disease/diagnosis ; Infliximab ; Antibodies, Monoclonal ; Neoplasms/diagnosis ; Neoplasms/epidemiology ; Neoplasms/etiology
Chemical Substances	Infliximab (B72HH48FLU) ; Antibodies, Monoclonal
Language	English
Publishing date	2023-05-04
Publishing country	England
Document type	Editorial
ZDB-ID	2728585-6
ISSN	2050-6414 ; 2050-6406
ISSN (online)	2050-6414
ISSN	2050-6406
DOI	10.1002/ueg2.12401
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Article: Postural prevalence, time of day and spent time activities during smartphone weekday use among students: A survey to prevent musculoskeletal disorders.

Gorce, Philippe / Jacquier-Bret, Julien

Heliyon

2023 Volume 9, Issue 12, Page(s) e22796

Abstract: ... use was the highest in the evening (301.1 min; 95 % confidence interval [CI]: 277.4-324.8 min, p < 0 ...

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.
Language	English
Publishing date	2023-11-25
Publishing country	England
Document type	Journal Article
ZDB-ID	2835763-2
ISSN	2405-8440
ISSN	2405-8440
DOI	10.1016/j.heliyon.2023.e22796
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Article ; Online: Global prevalence of musculoskeletal disorders among physiotherapists: a systematic review and meta-analysis.

Gorce, Philippe / Jacquier-Bret, Julien

BMC musculoskeletal disorders

2023 Volume 24, Issue 1, Page(s) 265

Abstract: Background: Musculoskeletal disorders (MSD) are one of the most important problems among physiotherapists worldwide. However, there is no meta-analysis of the MSD prevalence in all body areas among physiotherapists.: Objectives: The purpose was to ... ...

Abstract	Background: Musculoskeletal disorders (MSD) are one of the most important problems among physiotherapists worldwide. However, there is no meta-analysis of the MSD prevalence in all body areas among physiotherapists. Objectives: The purpose was to investigate and estimate the worldwide prevalence of MSD among physiotherapists using a systematic review-, meta-analysis and meta-regression. Methods: The systematic review, meta-analysis and meta-regression were performed in 2022 using the PRISMA guidelines. Data sources: The search was performed on PubMed/Medline, ScienceDirect, Google Scholar, Medeley and Science.gov databases. Study appraisal: The quality appraisal of the included articles was assessed using the critical appraisal tool for cross-sectional studies AXIS. Results: A total of 722 articles were found. After screening and comparison with the inclusion criteria, 26 studies were retained. Based on the random-effects model, the worldwide MSD prevalence in neck, upper back, mid back, lower back, shoulders, elbows, wrists/hands, thumb, hips/thighs, knees/legs, and ankles/feet was 26.4% (CI 95%: 21.0-31.9%), 17.7% (CI 95%: 13.2-22.2%), 14.9% (CI 95%: 7.7-22.1%), 40.1% (CI 95%: 32.2-48.0%), 20.8% (CI 95%: 16.5-25.1), 7.0% (CI 95%: 5.2-8.9), 18.1% (CI 95%: 14.7-21.5%), 35.4% (CI 95%: 23.0-47.8), 7.0% (CI 95%: 5.2-8.8), 13.0% (CI 95%: 10.3-15.8), and 5% (CI 95%: 4.0-6.9) respectively. The neck and shoulder prevalence of four continents were close to the world prevalence. No effect of continent was found on MSD prevalence. The heterogeneity of the results obtained in the meta-analysis and meta-regression was discussed. Conclusions: Based on the random effects model, the results of the worldwide meta-analysis showed that lower back pain, thumb, neck and shoulder were the area most at risk for MSD and were therefore those to be monitored as a priority. Recommendations were proposed for future reviews and meta-analyses.
MeSH term(s)	Humans ; Physical Therapists ; Prevalence ; Cross-Sectional Studies ; Occupational Diseases/epidemiology ; Musculoskeletal Diseases/diagnosis ; Musculoskeletal Diseases/epidemiology ; Musculoskeletal Diseases/prevention & control
Language	English
Publishing date	2023-04-04
Publishing country	England
Document type	Meta-Analysis ; Systematic Review ; Journal Article
ZDB-ID	2041355-5
ISSN	1471-2474 ; 1471-2474
ISSN (online)	1471-2474
ISSN	1471-2474
DOI	10.1186/s12891-023-06345-6
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Article ; Online: Prevalence of Body Area Work-Related Musculoskeletal Disorders among Healthcare Professionals: A Systematic Review.

Jacquier-Bret, Julien / Gorce, Philippe

International journal of environmental research and public health

2023 Volume 20, Issue 1

Abstract: Healthcare professionals perform daily activities that can lead to musculoskeletal disorders (MSDs). The objective of this review was to summarize these MSDs by body areas in relation to healthcare professions. The underlying question is, worldwide, ... ...

Abstract	Healthcare professionals perform daily activities that can lead to musculoskeletal disorders (MSDs). The objective of this review was to summarize these MSDs by body areas in relation to healthcare professions. The underlying question is, worldwide, whether there are areas that are more exposed depending on the occupation or whether there are common areas that are highly exposed to MSDs. This issue has been extended to risk factors and responses to reduce MSDs. The review was conducted according to the PRISMA guidelines between February and May 2022. Google scholar and Science Direct databases were scanned to identify relevant studies. Two authors independently reviewed, critically appraised, and extracted data from these studies. Overall and body area prevalence, risk factors, and responses to MSDs were synthetized by occupational activity. Among the 21,766 records identified, 36 covering six healthcare professions were included. The lower back, neck, shoulder and hand/wrist were the most exposed areas for all healthcare professionals. Surgeons and dentists presented the highest prevalence of lower back (>60%), shoulder and upper extremity (35-55%) MSDs. The highest prevalence of MSDs in the lower limbs was found for nurses (>25%). The main causes reported for all healthcare professionals were maintenance and repetition of awkward postures, and the main responses were to modify these postures. Trends by continent seem to emerge regarding the prevalence of MSDs by healthcare profession. Africa and Europe showed prevalence three times higher than Asia and America for lower back MSDs among physiotherapists. African and Asian nurses presented rates three times higher for elbow MSDs than Oceanians. It becomes necessary to objectively evaluate postures and their level of risk using ergonomic tools, as well as to adapt the work environment to reduce exposure to MSDs with regard to the specificities of each profession.
MeSH term(s)	Humans ; Prevalence ; Musculoskeletal Diseases/etiology ; Health Personnel ; Ergonomics ; Risk Factors ; Delivery of Health Care ; Occupational Diseases/epidemiology ; Occupational Diseases/etiology
Language	English
Publishing date	2023-01-02
Publishing country	Switzerland
Document type	Systematic Review ; Journal Article ; Review
ZDB-ID	2175195-X
ISSN	1660-4601 ; 1661-7827
ISSN (online)	1660-4601
ISSN	1661-7827
DOI	10.3390/ijerph20010841
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Article ; Online: Effect of Assisted Surgery on Work-Related Musculoskeletal Disorder Prevalence by Body Area among Surgeons: Systematic Review and Meta-Analysis.

Gorce, Philippe / Jacquier-Bret, Julien

International journal of environmental research and public health

2023 Volume 20, Issue 14

Abstract: Surgeons are highly exposed to work-related musculoskeletal disorders (WMSDs). The objective of this review was to summarize the WMSD prevalence by body area with and without assistive devices. The underlying question was whether there is an effect of ... ...

Abstract	Surgeons are highly exposed to work-related musculoskeletal disorders (WMSDs). The objective of this review was to summarize the WMSD prevalence by body area with and without assistive devices. The underlying question was whether there is an effect of assistive device use (robot, video, or other) during surgery on WMSD prevalence by body area among surgeons, regardless of their specialty. The systematic review was conducted according to the PRISMA guidelines. The Google Scholar, Pubmed/Medline, and ScienceDirect databases were scanned to identify relevant studies. The article selection, review, critical appraisal, and data extraction were performed by two authors independently. Among the 34,854 unique identified records, 77 studies were included. They were divided into two groups: 35 focused on robotic- and video-assisted surgery (RVAS) and 48 concerning surgery without video/robotic assistance (WAS) (6 studies evaluated the prevalence for both groups). WMSD prevalence was reported for 13 body areas: the neck, back, upper back, mid-back, lower back, shoulders, elbows, wrists, fingers, thumbs, hips, knees, and ankles. The results showed that WMSD prevalence was significantly higher (unpaired
MeSH term(s)	Humans ; Prevalence ; Occupational Diseases/epidemiology ; Musculoskeletal Diseases/epidemiology ; Musculoskeletal Diseases/etiology ; Back ; Surgeons ; Risk Factors
Language	English
Publishing date	2023-07-20
Publishing country	Switzerland
Document type	Meta-Analysis ; Systematic Review ; Journal Article ; Review ; Research Support, Non-U.S. Gov't
ZDB-ID	2175195-X
ISSN	1660-4601 ; 1661-7827
ISSN (online)	1660-4601
ISSN	1661-7827
DOI	10.3390/ijerph20146419
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