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Davidson JM, Zehr JD, Dominelli PB, Callaghan JP. Traditional versus dynamic sitting: Lumbar spine kinematics and pain during computer work and activity guided tasks. APPLIED ERGONOMICS 2024; 119:104310. [PMID: 38776566 DOI: 10.1016/j.apergo.2024.104310] [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: 12/14/2023] [Revised: 04/22/2024] [Accepted: 05/07/2024] [Indexed: 05/25/2024]
Abstract
Dynamic sitting may mitigate low back pain during prolonged seated work. The current study compared pelvis and lumbar spine kinematics, pain, and work productivity, in traditional and dynamic sitting. Sixteen participants completed three 20-min blocks of computer work and activity guided tasks in a traditional office chair or backless and multiaxial rotating seat pan while kinematics were measured from accelerometers on the low back. Pain ratings were recorded on a visual analogue scale every 10 min. Similar pelvis and lumbar kinematics emerged when performing computer work in traditional and dynamic sitting. Pelvis and lumbar sagittal and frontal plane shifts and fidgets were largest for dynamic sitting in the activity guided tasks. Buttocks pain was higher in dynamic sitting, but low back pain and work productivity were unaffected. Dynamic sitting increased spine movement during activity guided tasks, without negatively impacting lumbar kinematics, low back pain, or productivity during seated computer work.
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Affiliation(s)
- Jessa M Davidson
- Department of Kinesiology and Health Sciences, University of Waterloo, Waterloo, Ontario, Canada
| | - Jackie D Zehr
- Department of Kinesiology and Health Sciences, University of Waterloo, Waterloo, Ontario, Canada
| | - Paolo B Dominelli
- Department of Kinesiology and Health Sciences, University of Waterloo, Waterloo, Ontario, Canada
| | - Jack P Callaghan
- Department of Kinesiology and Health Sciences, University of Waterloo, Waterloo, Ontario, Canada.
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Kerry R, Young KJ, Evans DW, Lee E, Georgopoulos V, Meakins A, McCarthy C, Cook C, Ridehalgh C, Vogel S, Banton A, Bergström C, Mazzieri AM, Mourad F, Hutting N. A modern way to teach and practice manual therapy. Chiropr Man Therap 2024; 32:17. [PMID: 38773515 PMCID: PMC11110311 DOI: 10.1186/s12998-024-00537-0] [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: 10/18/2023] [Accepted: 04/17/2024] [Indexed: 05/23/2024] Open
Abstract
BACKGROUND Musculoskeletal conditions are the leading contributor to global disability and health burden. Manual therapy (MT) interventions are commonly recommended in clinical guidelines and used in the management of musculoskeletal conditions. Traditional systems of manual therapy (TMT), including physiotherapy, osteopathy, chiropractic, and soft tissue therapy have been built on principles such as clinician-centred assessment, patho-anatomical reasoning, and technique specificity. These historical principles are not supported by current evidence. However, data from clinical trials support the clinical and cost effectiveness of manual therapy as an intervention for musculoskeletal conditions, when used as part of a package of care. PURPOSE The purpose of this paper is to propose a modern evidence-guided framework for the teaching and practice of MT which avoids reference to and reliance on the outdated principles of TMT. This framework is based on three fundamental humanistic dimensions common in all aspects of healthcare: safety, comfort, and efficiency. These practical elements are contextualised by positive communication, a collaborative context, and person-centred care. The framework facilitates best-practice, reasoning, and communication and is exemplified here with two case studies. METHODS A literature review stimulated by a new method of teaching manual therapy, reflecting contemporary evidence, being trialled at a United Kingdom education institute. A group of experienced, internationally-based academics, clinicians, and researchers from across the spectrum of manual therapy was convened. Perspectives were elicited through reviews of contemporary literature and discussions in an iterative process. Public presentations were made to multidisciplinary groups and feedback was incorporated. Consensus was achieved through repeated discussion of relevant elements. CONCLUSIONS Manual therapy interventions should include both passive and active, person-empowering interventions such as exercise, education, and lifestyle adaptations. These should be delivered in a contextualised healing environment with a well-developed person-practitioner therapeutic alliance. Teaching manual therapy should follow this model.
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Affiliation(s)
- Roger Kerry
- School of Health Sciences, Queens Medical Centre, University of Nottingham, Nottingham, NG7 2HA, UK
| | - Kenneth J Young
- Allied Health Research Unit, University of Central Lancashire, Preston, PR1 2HE, UK.
| | - David W Evans
- Centre of Precision Rehabilitation for Spinal Pain, School of Sport, Exercise and Rehabilitation Sciences, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK
| | - Edward Lee
- School of Health Sciences, Queens Medical Centre, University of Nottingham, Nottingham, NG7 2HA, UK
- Nottingham CityCare Partnership, Bennerley Rd, Nottingham, NG6 8WR, UK
| | - Vasileios Georgopoulos
- School of Health Sciences, Queens Medical Centre, University of Nottingham, Nottingham, NG7 2HA, UK
- School of Medicine, University of Nottingham, Queens Medical Centre, Nottingham, NG7 2HA, UK
| | - Adam Meakins
- Department of Orthopaedics, West Herts Hospitals Trust, Watford, WD18 0HB, UK
| | - Chris McCarthy
- School of Physiotherapy, Manchester Metropolitan University, Manchester, M15 6GX, UK
| | - Chad Cook
- Department of Orthopaedics, Duke University, 200 Morris Street, Durham, NC, 27701, USA
| | - Colette Ridehalgh
- School of Sport and Health Sciences, University of Brighton, Darley Rd, Eastbourne, BN20 7UR, UK
- Clinical Neuroscience, Trafford Building, Brighton and Sussex Medical School, University of Sussex, Brighton, BN1 9PX, UK
| | - Steven Vogel
- University College of Osteopathy, 275 Borough High St, London, SE1 1JE, UK
| | - Amanda Banton
- University College of Osteopathy, 275 Borough High St, London, SE1 1JE, UK
| | - Cecilia Bergström
- Department of Clinical Sciences, Obstetrics and Gynecology, Umeå University, S-90187, Umeå, Sweden
| | | | - Firas Mourad
- Department of health, LUNEX, Differdange, 4671, Luxembourg
- Luxembourg Health & Sport Sciences Research Institute A.s.b.l., 50, Avenue du Parc des Sports, Differdange, 4671, Luxembourg
| | - Nathan Hutting
- Department of Occupation and Health, School of Organization and Development, HAN University of Applied Sciences, Nijmegen, the Netherlands
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Davidson JM, Zehr JD, Noguchi M, Fok DJ, Tennant LM, Callaghan JP. Lateral Pelvis and Lumbar Motion in Seated and Standing Office Work and Their Association With Transient Low Back Pain. HUMAN FACTORS 2024:187208241249423. [PMID: 38713086 DOI: 10.1177/00187208241249423] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2024]
Abstract
OBJECTIVE To assess frontal plane motion of the pelvis and lumbar spine during 2 h of seated and standing office work and evaluate associations with transient low back pain. BACKGROUND Although bending and twisting motions are cited as risk factors for low back injuries in occupational tasks, few studies have assessed frontal plane motion during sedentary exposures. METHODS Twenty-one participants completed 2 h of seated and standing office work while pelvic obliquity, lumbar lateral bending angles, and ratings of perceived low back pain were recorded. Mean absolute angles were compared across 15-min blocks, amplitude probability distribution functions were calculated, and associations between lateral postures and low back pain were evaluated. RESULTS Mean pelvic obliquity (sit = 4.0 ± 2.8°, stand = 3.5 ± 1.7°) and lumbar lateral bending (sit = 4.5 ± 2.5°, stand = 4.1 ± 1.6°) were consistently asymmetrical. Pelvic obliquity range of motion was 4.7° larger in standing (13.6 ± 7.5°) than sitting (8.9 ± 8.7°). In sitting, 52% (pelvis) and 71% (lumbar) of participants, and in standing, 71% (pelvis and lumbar) of participants, were considered asymmetric for >90% of the protocol. Lateral postures displayed weak to low correlations with peak low back pain (R ≤ 0.388). CONCLUSION The majority of participants displayed lateral asymmetries for the pelvis and lumbar spine within 5° of their upright standing posture. APPLICATION In short-term sedentary exposures, associations between lateral postures and pain indicated that as the range in lateral postures increases there may be an increased possibility of pain.
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Kastelic K, Šarabon N, Burnard MD, Lipovac D, Pedišić Ž. Association of meeting 24-hour movement guidelines with low back pain among adults. AIMS Public Health 2023; 10:964-979. [PMID: 38187895 PMCID: PMC10764968 DOI: 10.3934/publichealth.2023062] [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: 07/27/2023] [Revised: 10/13/2023] [Accepted: 11/09/2023] [Indexed: 01/09/2024] Open
Abstract
Background According to recently published 24-hour movement guidelines, adults should spend: ≥150 minutes/week in moderate-to-vigorous physical activity (MVPA); <8 hours/day in sedentary behaviour (SB); and 7-9 hours/day sleeping. Objective We explored the association between meeting these recommendations and low back pain (LBP)-the most common musculoskeletal disorder. Methods We collected self-reported data from 2333 adults about: MVPA, SB and sleep duration; frequency and intensity of LBP; and sociodemographic and lifestyle characteristics. Results Meeting a combination of SB and sleep recommendations was associated with lower odds of LBP in the past week and past month (adjusted odds ratio [OR]: 0.64 and 0.52, respectively; p < 0.05 for both). Among LBP sufferers, meeting any combination of recommendations that includes sleep was associated with lower odds of frequent (OR range: 0.49-0.61; p < 0.05 for all) and intense (OR range: 0.39-0.66; p < 0.05 for all) LBP in the past week, while meeting a combination of SB and sleep recommendations or all three recommendations was associated with lower odds of intense LBP in the past month and past year (OR range: 0.50-0.68; p < 0.05 for all). The likelihood of experiencing higher frequency and intensity of LBP decreased with the number of recommendations met (p for linear trend < 0.05). Conclusion Meeting the SB and sleep recommendations in combination is associated with a lower likelihood of LBP, while adhering to the overall 24-hour movement guidelines or any combination of recommendations that includes sleep is associated with lower frequency and intensity of LBP among LBP sufferers.
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Affiliation(s)
- Kaja Kastelic
- Andrej Marušič Institute, University of Primorska, Muzejski trg 2, 6000 Koper, Slovenia
- InnoRenew CoE, Livade 6a, 6310 Izola, Slovenia
| | - Nejc Šarabon
- InnoRenew CoE, Livade 6a, 6310 Izola, Slovenia
- Faculty of Health Sciences, University of Primorska, Polje 42, 6310 Izola, Slovenia
| | - Michael D. Burnard
- Andrej Marušič Institute, University of Primorska, Muzejski trg 2, 6000 Koper, Slovenia
- InnoRenew CoE, Livade 6a, 6310 Izola, Slovenia
| | - Dean Lipovac
- Andrej Marušič Institute, University of Primorska, Muzejski trg 2, 6000 Koper, Slovenia
- InnoRenew CoE, Livade 6a, 6310 Izola, Slovenia
| | - Željko Pedišić
- Institute for Health and Sport, Victoria University, Building P, Footscray Park Campus, Ballarat Road, Footscray VIC 3011, Melbourne, Australia
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De Carvalho DE, Callaghan JP. Effect of office chair design features on lumbar spine posture, muscle activity and perceived pain during prolonged sitting. ERGONOMICS 2023; 66:1465-1476. [PMID: 36437777 DOI: 10.1080/00140139.2022.2152113] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Accepted: 11/18/2022] [Indexed: 06/16/2023]
Abstract
Chair design features are typically compared using multiple seats, which can lead to confounding effects. Using a single chair, configurable to four designs (control, lumbar support, seat pan tilt and scapular relief), we investigated the effect of chair design on spine posture and movement, muscle activity and perceived pain in a sample of 31 asymptomatic adults. A total of 39% of the population were classified as pain developers, having significantly higher peak pain levels across most body regions. The lumbar support and seat pan tilt condition resulted in more neutral spine and pelvic postures. Greater muscle activity was found in the seat pan condition and non-pain developers displayed lower spine muscle activation levels overall. Despite some improvements in spine posture, sitting-induced pain was present in the study sample at similar proportions to those reported previously. Future studies may consider investigating interventions targeted to sitting-induced pain developers as opposed to the general population. Practitioner summary: Four office chair configurations were tested. The lumbar support and seat pan tilt conditions resulted in the most neutral back posture but did not mitigate the clinically significant levels of sitting-induced pain experienced by a large portion of the tested sample. Future work should target interventions to these individuals.
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Affiliation(s)
- D E De Carvalho
- Faculty of Medicine, Memorial University of Newfoundland, St. John's, NL, Canada
| | - J P Callaghan
- Department of Kinesiology & Health Sciences, Faculty of Health, University of Waterloo, Waterloo, ON, Canada
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Herrero P, Ríos-Asín I, Lapuente-Hernández D, Pérez L, Calvo S, Gil-Calvo M. The Use of Sensors to Prevent, Predict Transition to Chronic and Personalize Treatment of Low Back Pain: A Systematic Review. SENSORS (BASEL, SWITZERLAND) 2023; 23:7695. [PMID: 37765752 PMCID: PMC10534870 DOI: 10.3390/s23187695] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Revised: 08/25/2023] [Accepted: 09/02/2023] [Indexed: 09/29/2023]
Abstract
Non-specific low back pain (NSLBP) is a highly prevalent condition that implies substantial expenses and affects quality of life in terms of occupational and recreational activities, physical and psychological health, and general well-being. The diagnosis and treatment are challenging processes due to the unknown underlying causes of the condition. Recently, sensors have been included in clinical practice to implement its management. In this review, we furthered knowledge about the potential benefits of sensors such as force platforms, video systems, electromyography, or inertial measure systems in the assessment process of NSLBP. We concluded that sensors could identify specific characteristics of this population like impaired range of movement, decreased stability, or disturbed back muscular activation. Sensors could provide sufferers with earlier diagnosis, prevention strategies to avoid chronic transition, and more efficient treatment approaches. Nevertheless, the review has limitations that need to be considered in the interpretation of results.
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Affiliation(s)
- Pablo Herrero
- IIS Aragon—iHealthy Research Group, C. de San Juan Bosco, 13, 50009 Zaragoza, Spain; (P.H.); (D.L.-H.); (L.P.); (M.G.-C.)
- Department of Physiatry and Nursing, Faculty of Health Sciences, University of Zaragoza, C. de Domingo Miral, S/N, 50009 Zaragoza, Spain;
| | - Izarbe Ríos-Asín
- Department of Physiatry and Nursing, Faculty of Health Sciences, University of Zaragoza, C. de Domingo Miral, S/N, 50009 Zaragoza, Spain;
- Department of Physiotherapy, Faculty of Health Sciences, University of Granada, Av. de la Ilustración, 60, 18071 Granada, Spain
| | - Diego Lapuente-Hernández
- IIS Aragon—iHealthy Research Group, C. de San Juan Bosco, 13, 50009 Zaragoza, Spain; (P.H.); (D.L.-H.); (L.P.); (M.G.-C.)
- Department of Physiatry and Nursing, Faculty of Health Sciences, University of Zaragoza, C. de Domingo Miral, S/N, 50009 Zaragoza, Spain;
| | - Luis Pérez
- IIS Aragon—iHealthy Research Group, C. de San Juan Bosco, 13, 50009 Zaragoza, Spain; (P.H.); (D.L.-H.); (L.P.); (M.G.-C.)
- Department of Physiatry and Nursing, Faculty of Health Sciences, University of Zaragoza, C. de Domingo Miral, S/N, 50009 Zaragoza, Spain;
| | - Sandra Calvo
- IIS Aragon—iHealthy Research Group, C. de San Juan Bosco, 13, 50009 Zaragoza, Spain; (P.H.); (D.L.-H.); (L.P.); (M.G.-C.)
- Department of Physiatry and Nursing, Faculty of Health Sciences, University of Zaragoza, C. de Domingo Miral, S/N, 50009 Zaragoza, Spain;
| | - Marina Gil-Calvo
- IIS Aragon—iHealthy Research Group, C. de San Juan Bosco, 13, 50009 Zaragoza, Spain; (P.H.); (D.L.-H.); (L.P.); (M.G.-C.)
- Faculty of Physical Activity and Sports Sciences, Universidad de León, Cjón. Campus Vegazana, S/N, 24007 León, Spain
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Sousa-Sá E, Cook C, Burley J, Santos R. Editorial: Movement behaviors (sleep, sedentary behavior and physical activity) and physical and mental/cognitive health. Front Psychiatry 2023; 14:1252986. [PMID: 37608995 PMCID: PMC10441227 DOI: 10.3389/fpsyt.2023.1252986] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Accepted: 07/24/2023] [Indexed: 08/24/2023] Open
Affiliation(s)
- Eduarda Sousa-Sá
- Centre for Research in Sport, Physical Education, Exercise and Health (CIDEFES), Universidade Lusófona, Lisbon, Portugal
- Research Centre in Physical Activity, Health and Leisure, Faculty of Sport, University of Porto, Porto, Portugal
- Laboratory for Integrative and Translational Research in Population Health (ITR), Porto, Portugal
| | - Caylee Cook
- University of the Witwatersrand, Johannesburg, South Africa
| | - Jade Burley
- University of Wollongong, Wollongong, NSW, Australia
| | - Rute Santos
- Institute of Education, University of Minho, Braga, Portugal
- Research Centre in Child Studies, University of Minho, Braga, Portugal
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Kaboré PA, Schepens B. Work-related musculoskeletal disorders and risk factors among weavers: A cross-sectional study. SOUTH AFRICAN JOURNAL OF PHYSIOTHERAPY 2023; 79:1904. [PMID: 38855078 PMCID: PMC11157636 DOI: 10.4102/sajp.v79i1.1904] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Accepted: 06/14/2023] [Indexed: 06/11/2024] Open
Abstract
Background Work-related musculoskeletal disorders (WRMSDs) are a major health issue for low-income countries because of their high prevalence among workers and on account of the scarcity of ergonomic preventative measures in the workplace. Objectives To determine the prevalence of WRMSDs among weavers, assess their consequences, and analyse the associated occupational risk factors. Method A cross-sectional survey was carried out among 257 handloom weavers using the Nordic questionnaireand the working conditions were assessed through a descriptive analysis using the key indicator method. Results The WRMSDs annual prevalence was 85% in all parts of the body, 71% for the low back region, 41% for the shoulders, and 37% for the knees. One quarter of the weavers indicated having stopped work for 1-30 days because of their low back pain (LBP). The prevalence of WRMSDs was associated with the number of hours worked per day, the years of experience, and age. Long working hours, load carrying (> 20 kg - 25 kg), awkward postures, repetitive limb movements, and unfavourable environmental conditions were identified as occupational risk factors. Conclusion Work-related musculoskeletal disorders are common among weavers and LBP is the most frequently cited disorder and the primary reason for work interruptions and a decrease of activities. The prevalence of WRMSDs is associated with professional and personal factors. Actions based on ergonomic rules are necessary to prevent WRMSDs. Clinical implications Our study highlights the issue of WRMSDs and the need for prevention in the informal sector, which constitutes the major part of economic activity in low-income countries.
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Affiliation(s)
- Pegdwendé A. Kaboré
- Laboratory of Physiology and Biomechanics of Locomotion-Institute of Neuroscience, Faculty of Movement and Rehabilitation Sciences, Catholic University of Louvain, Louvain-la-Neuve, Belgium
- National Center for Orthopedic Equipment of Burkina, Ouagadougou, Burkina Faso
| | - Bénédicte Schepens
- Laboratory of Physiology and Biomechanics of Locomotion-Institute of Neuroscience, Faculty of Movement and Rehabilitation Sciences, Catholic University of Louvain, Louvain-la-Neuve, Belgium
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Christensen SWM, Palsson TS, Krebs HJ, Graven-Nielsen T, Hirata RP. Prolonged slumped sitting causes neck pain and increased axioscapular muscle activity during a computer task in healthy participants - A randomized crossover study. APPLIED ERGONOMICS 2023; 110:104020. [PMID: 36958253 DOI: 10.1016/j.apergo.2023.104020] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2022] [Revised: 03/15/2023] [Accepted: 03/17/2023] [Indexed: 06/18/2023]
Abstract
INTRODUCTION Sitting posture may contribute to spinal pain. Effects of postures on pain, sensitivity and muscle activity during computer tasks were investigated. METHODS Twenty-five healthy participants, seated at a workstation without backrest, completed four, 15-min typing tasks: A)Upright with forearm-support; B)Upright without forearm-support; C)Slumped with forearm-support; D)Slumped without forearm-support. Participants rated pain every minute on a numerical rating scale (NRS). RMS-EMG was recorded from upper/lower trapezius (UT, LT), serratus anterior and anterior/middle deltoid. At baseline and after tasks, pressure pain thresholds (PPTs) were recorded bilaterally over the head, UT, and leg. RESULTS All tasks caused clinically relevant increased NRS (≥2/10) compared to baseline (P < 0.001). NRS was higher in Task-D (P < 0.003) and lower in Task-B (P < 0.005) than others. PPTs did not change from baseline. Task-D caused higher UT and LT RMS-EMG (P < 0.02) than other tasks. CONCLUSION A 15-min task caused pain irrespective of posture with some causing larger changes than others.
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Affiliation(s)
- Steffan Wittrup McPhee Christensen
- Department of Health Science and Technology, Faculty of Medicine, Aalborg University, Denmark; Department of Physiotherapy, University College of Northern Denmark (UCN), Aalborg, Denmark.
| | - Thorvaldur Skuli Palsson
- Department of Health Science and Technology, Faculty of Medicine, Aalborg University, Denmark; Department of Physiotherapy and Occupational Therapy, Aalborg University Hospital, Denmark
| | - Hans Jørgen Krebs
- Department of Health Science and Technology, Faculty of Medicine, Aalborg University, Denmark
| | - Thomas Graven-Nielsen
- Center for Neuroplasticity and Pain (CNAP), Department of Health Science and Technology, Aalborg University, Denmark
| | - Rogerio Pessoto Hirata
- Department of Health Science and Technology, Faculty of Medicine, Aalborg University, Denmark; Sport Sciences - Performance and Technology, Department of Health Science and Technology Aalborg University, Denmark
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Leung M, Kan MMP, Cheng HMH, De Carvalho DE, Anwer S, Li H, Wong AYL. Effects of Using a Shoulder/Scapular Brace on the Posture and Muscle Activity of Healthy University Students during Prolonged Typing-A Randomized Controlled Cross-Over Trial. Healthcare (Basel) 2023; 11:healthcare11111555. [PMID: 37297695 DOI: 10.3390/healthcare11111555] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Revised: 05/16/2023] [Accepted: 05/23/2023] [Indexed: 06/12/2023] Open
Abstract
Laptop use appears to contribute to poor working postures and neck pain among university students. Postural braces have the potential to improve upper back/neck posture and therefore might have a role as an ergonomic aid for this population. Therefore, the purpose of this study was to assess the short-term effects of scapular bracing on pain, fatigue, cervicothoracic posture, and the activity of the neck and upper-back muscles in healthy college students. A randomized controlled crossover trial was conducted to evaluate the self-reported pain and fatigue, the amplitude and median frequency of surface electromyography in neck extensors, upper trapezius, and lower trapezius, as well as the neck and shoulder sagittal alignment (measured by inertial sensors and digital photographs) during a 30-min typing task in a sample of young, healthy university students with or without a scapular brace. The brace condition resulted in significantly smaller levels of bilateral trapezius muscle activity (p < 0.01). Rounded shoulder posture was slightly better in the brace condition, but these differences were not significant (p > 0.05). There were no significant immediate differences in pain or fatigue scores, neck alignment, or the electromyographic activity of the other muscles tested between brace and non-brace conditions (all p > 0.05). However, bracing appears to immediately reduce the electromyographic activity of the lower trapezius muscles (p < 0.05). These findings shed some light on the possible advantages of scapular bracing for enhancing laptop ergonomics in this group of individuals. Future studies are warranted to evaluate the effects of different types of braces, the importance of matching the brace to the user, and the short- and long-term effects of brace use on computer posture and muscle activity.
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Affiliation(s)
- Melissa Leung
- Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Hong Kong SAR, China
| | - Mandy M P Kan
- Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Hong Kong SAR, China
| | - Hugo M H Cheng
- Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Hong Kong SAR, China
| | - Diana E De Carvalho
- Faculty of Medicine, Memorial University of Newfoundland, St. John's, NL A1B 2Y1, Canada
| | - Shahnawaz Anwer
- Department of Building and Real Estate, The Hong Kong Polytechnic University, Hong Kong SAR, China
| | - Heng Li
- Department of Building and Real Estate, The Hong Kong Polytechnic University, Hong Kong SAR, China
| | - Arnold Y L Wong
- Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Hong Kong SAR, China
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De Carvalho D, Callaghan JP. Does a break from sitting change biomechanical outcome measures or transient pain? A laboratory-based experimental study. Work 2023:WOR211266. [PMID: 36641712 DOI: 10.3233/wor-211266] [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: 01/12/2023] Open
Abstract
BACKGROUND Sitting can induce transient low back pain (LBP) in healthy individuals. A rest from sitting should provide relief, however, the parameters of breaks (activity type, intensity, duration, and timing) are not currently known. OBJECTIVE The purpose of this study was to examine the effect of 2-minute walking breaks at 40-minute intervals on sitting-induced LBP. METHODS Thirty-two healthy participants were recruited for a within-control study: two randomly presented sessions of sitting for 2 hours with and without breaks. Outcome measures were compared between condition and pain group using a three-way ANOVA with significance atp > 0.05. RESULTS Walking breaks at 40-minute intervals result in significantly lower pain ratings than those taken immediately before the break for sitting-induced back pain developers. However, this relief is short lived (<10 minutes), with ratings increasing to pre-break levels once the sitting exposure resumes. There were no differences in biomechanical factors between sessions. Regardless of session type, pain developers displayed higher spine fidget frequency than non-pain developers, females sat with less spine flexion, with greater gluteal activation levels, and with their center of pressure approximately half a centimeter to the left and forward compared to males, and males had significantly greater peak pressures over a smaller area compared to females. CONCLUSION Walking breaks at 40-minute intervals provide significant, but temporary, relief of sitting-induced back pain for pain developers. Future work should optimize break parameters and examine the longer-term benefit of breaks, especially for individuals that are not able to tolerate sitting for extended durations.
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Affiliation(s)
- D De Carvalho
- Faculty of Medicine,Memorial University of Newfoundland, St. John's, NL, Canada
| | - J P Callaghan
- Department of Kinesiology, Faculty of Applied Health Sciences,University of Waterloo, Waterloo, ON, Canada
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Mackey S, Howarth SJ, Frey M, De Carvalho D. An investigation of the flexion relaxation ratio in adults with and without a history of self-reported low back pain and transient sitting-induced pain. J Electromyogr Kinesiol 2022; 67:102719. [PMID: 36334404 DOI: 10.1016/j.jelekin.2022.102719] [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: 02/03/2022] [Revised: 10/10/2022] [Accepted: 10/19/2022] [Indexed: 11/07/2022] Open
Abstract
It is unknown whether the presence of sitting-induced pain or a clinical history of low back pain (LBP) changes spine function outcomes such as the flexion relaxation ratio (FRR). The purpose of this investigation was to determine whether sitting-induced pain or a history of non-specific LBP results in a different FRR. Forty-seven participants were instrumented with surface electromyography over erector spinae at L1, and accelerometers at L1 and S2. Standing maximum lumbar flexion trials were taken preceding and following a 1-hour sitting trial. Pain ratings during sitting and history of LBP were used to group participants for analysis. FRR values taken after the sitting exposures were compared between those that did and did not develop pain during sitting. Baseline FRR values were compared participants with and without a history of LBP. No significant differences in FRR were found for either pain groups (p = 0.11) or clinical history (p = 0.85). Lack of differences may be due to participants not currently experiencing a clinical episode of pain when the ratio was measured and/or because 1-hour sitting exposure was not long enough to induce pain modulation. The findings suggest that neither sitting-induced pain development or clinical history need to be controlled to prevent confounding of FRR.
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Affiliation(s)
- Sarah Mackey
- Faculty of Medicine, Memorial University of Newfoundland, St. John's, NL, Canada
| | - Samuel J Howarth
- Division of Research and Innovation, Canadian Memorial Chiropractic College, Toronto, ON, Canada
| | - Mona Frey
- Faculty of Medicine, Memorial University of Newfoundland, St. John's, NL, Canada
| | - Diana De Carvalho
- Faculty of Medicine, Memorial University of Newfoundland, St. John's, NL, Canada.
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13
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Hochheim M, Ramm P, Wunderlich M, Amelung V. Association between chronic low back pain and regular exercise, sedentary behaviour and mental health before and during COVID-19 pandemic: insights from a large-scale cross-sectional study in Germany. BMC Musculoskelet Disord 2022; 23:860. [PMID: 36104661 PMCID: PMC9474280 DOI: 10.1186/s12891-022-05806-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Accepted: 09/02/2022] [Indexed: 11/10/2022] Open
Abstract
Abstract
Background
Nonspecific chronic low back pain (CLBP) is a complex symptom with numerous possible causes and influencing factors. Understanding how modifiable factors affect the course of CLBP is important for preventing progression. As the COVID-19 pandemic has changed the lifestyle of many people, this study paper assessed whether it also changed the influence of modifiable lifestyle factors (regular exercise and sedentary behaviour) and mental health factors (anxiety and depression) on CLBP pain intensity and disability by comparing the strength of these associations before and during the pandemic. We hypothesised that the importance of regular physical activity and good mental health for CLBP patients would increase during the pandemic.
Methods
These questions were investigated in a cross-sectional study of insurance claims data and self-reported data from various questionnaires from 3,478 participants in a German CLBP health intervention (2014–2021) by calculating pre- and intra-pandemic odds ratios (OR) and 95% confidence intervals (CI) for each variable of interest and outcome. Potential confounders were also considered. Pandemic status was treated as an effect modifier. Based on the date of enrolment, participants were classified as “pre-pandemic” or “pandemic”.
Results
Regularly exercising ≥ 4 h/week significantly reduced the odds of high disability for men (OR 0.49, 95% CI 0.31 – 0.79, p = 0.003) and women (OR 0.30, 95% CI 0.14 – 0.563, p = 0.002) and reduced the probability of severe pain in women (OR 0.37, 95% CI 0.21 – 0.65, p < 0.001). Each one-point increase in PHQ-4 score for anxiety and depression increased the OR of high pain intensity by 1.25 points (95% CI 1.18 – 1.34, p < 0.001). A clear impact of COVID-19 lockdowns was observed. In individuals who exercised ≥ 4 h/week the OR of high disability was 0.57 (95% CI 0.36 – 0.92, p = 0.021) in the pre-pandemic group compared to 0.29 (95% CI 0.12 – 0.56, p = 0.002) in the pandemic group. The probability of high disability increased from an OR of 1.42 (95% CI 1.33 – 1.52, p < 0.001) per marginal increase in the PHQ-4 scale before the pandemic, to an OR of 1.73 (95% CI 1.58 – 1.89, p < 0.001) during the pandemic.
Conclusions
The magnitude of association of the factors that influenced high pain intensity and disability increased during the pandemic. On the one hand, the protective effect of regular exercising was greater in participants surveyed during lockdown. On the other hand, a higher risk through anxiety or depression during the lockdown was identified. An additional study with objective measures of sedentary behaviour and physical activity is needed to validate these results. More in-depth investigation of lockdown-induced associations between reduced daily physical activity, increased levels of anxiety and depression, and their effects on CLPB could also be worthwhile.
Trial registration
This study used routinely collected data from a CLBP intervention that was previously evaluated and registered in the German Registry of Clinical Trials under DRKS00015463 (04/09/2018). The original ethics approval, informed consent and self-reported questionnaire have remained unchanged and are still valid.
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14
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Pinto BL, Fewster KM, Callaghan JP. Lumbar spine movement profiles uniquely characterize postural variation during simulated prolonged driving. THEORETICAL ISSUES IN ERGONOMICS SCIENCE 2022. [DOI: 10.1080/1463922x.2022.2114032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
Affiliation(s)
- Brendan L. Pinto
- Department of Kinesiology & Health Sciences, University of Waterloo, Waterloo, ON, Canada
| | - Kayla M. Fewster
- Department of Kinesiology & Health Sciences, University of Waterloo, Waterloo, ON, Canada
- School of Kinesiology, University of British Columbia, Vancouver, BC, Canada
| | - Jack P. Callaghan
- Department of Kinesiology & Health Sciences, University of Waterloo, Waterloo, ON, Canada
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15
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Leivas EG, Bittencourt JV, Ferreira AS, Nogueira LAC. Is it possible to discriminate workers with a higher prevalence of low back pain considering daily exposure time in a work-related lumbar posture? A diagnostic accuracy study. ERGONOMICS 2022; 65:877-885. [PMID: 34727016 DOI: 10.1080/00140139.2021.2001577] [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: 04/28/2021] [Accepted: 10/27/2021] [Indexed: 06/13/2023]
Abstract
The study aimed to develop and validate a cut-off for daily postures to discriminate workers with low back pain. The self-reported episode of low back pain in the last year and during the previous week and the total spent time in occupational postures of 529 workers were used to screen workers who more likely would report low back pain. The receiver operating characteristics curve verified the ability of daily time in each posture in discriminating workers with low back pain in a training sample. Then, the chi-squared test and measurements of the diagnostic accuracy were performed in the testing sample. The daily time spent in a given posture was not able to accurately discriminate against workers with low back pain. Total time spent walking was the only daily posture that discriminated workers with low back pain in the last year in the testing sample, albeit with low accuracy. Practitioner Summary: The daily time spent in a given posture was not able to accurately distinguish workers with low back pain. Total spent time in walking presented modest diagnostic accuracy and should be interpreted cautiously. The spent time in a particular posture did not detect workers with LBP in the last week.
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Affiliation(s)
- Eduardo Gallas Leivas
- Rehabilitation Science Postgraduation Program, Augusto Motta University Centre (UNISUAM), Rio de Janeiro, Brazil
| | - Juliana Valentim Bittencourt
- Rehabilitation Science Postgraduation Program, Augusto Motta University Centre (UNISUAM), Rio de Janeiro, Brazil
| | - Arthur Sá Ferreira
- Rehabilitation Science Postgraduation Program, Augusto Motta University Centre (UNISUAM), Rio de Janeiro, Brazil
| | - Leandro Alberto Calazans Nogueira
- Rehabilitation Science Postgraduation Program, Augusto Motta University Centre (UNISUAM), Rio de Janeiro, Brazil
- Physiotherapy Department, Federal Institute of Rio de Janeiro (IFRJ), Rio de Janeiro, Brazil
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16
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de Luca K, Briggs AM, French SD, Ferreira ML, Cross M, Blyth F, March L. Disability burden due to musculoskeletal conditions and low back pain in Australia: findings from GBD 2019. Chiropr Man Therap 2022; 30:22. [PMID: 35505334 PMCID: PMC9063272 DOI: 10.1186/s12998-022-00434-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Accepted: 04/19/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND To report the national prevalence, years lived with disability (YLDs) and attributable risk factors for all musculoskeletal conditions and separately for low back pain (LBP), as well as compare the disability burden related to musculoskeletal with other health conditions in Australia in 2019. METHODS Global Burden of Disease (GBD) 2019 study meta-data on all musculoskeletal conditions and LBP specifically were accessed and aggregated. Counts and age-standardised rates, for both sexes and across all ages, for prevalence, YLDs and attributable risk factors are reported. RESULTS In 2019, musculoskeletal conditions were estimated to be the leading cause of YLDs in Australia (20.1%). There were 7,219,894.5 (95% UI: 6,847,113-7,616,567) prevalent cases of musculoskeletal conditions and 685,363 (95% UI: 487,722-921,471) YLDs due to musculoskeletal conditions. There were 2,676,192 (95% UI: 2,339,327-3,061,066) prevalent cases of LBP and 298,624 (95% UI: 209,364-402,395) YLDs due to LBP. LBP was attributed to 44% of YLDs due to musculoskeletal conditions. In 2019, 22.3% and 39.8% of YLDs due to musculoskeletal conditions and LBP, respectively, were attributed to modifiable GBD risk factors. CONCLUSIONS The ongoing high burden due to musculoskeletal conditions impacts Australians across the life course, and in particular females and older Australians. Strategies for integrative and organisational interventions in the Australian healthcare system should support high-value care and address key modifiable risk factors for disability such as smoking, occupational ergonomic factors and obesity.
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Affiliation(s)
- Katie de Luca
- Discipline of Chiropractic, School of Health, Medical and Applied Sciences, CQUniversity, Brisbane, Australia.
| | - Andrew M Briggs
- Curtin School of Allied Health and Curtin enAble Institute, Faculty of Health Sciences, Curtin University, Perth, Australia.,Global Alliance for Musculoskeletal Health, Sydney, Australia
| | - Simon D French
- Department of Chiropractic, Faculty of Medicine, Health and Human Sciences, Macquarie University, Sydney, Australia
| | - Manuela L Ferreira
- Institute of Bone and Joint Research, Kolling Institute, Faculty of Medicine and Health, University of Sydney, Sydney, Australia
| | - Marita Cross
- Global Alliance for Musculoskeletal Health, Sydney, Australia.,Institute of Bone and Joint Research, Kolling Institute, Faculty of Medicine and Health, University of Sydney, Sydney, Australia
| | - Fiona Blyth
- School of Public Health, Faculty of Medicine and Health, University of Sydney, Sydney, Australia
| | - Lyn March
- Institute of Bone and Joint Research, Kolling Institute, Faculty of Medicine and Health, University of Sydney, Sydney, Australia.,Florance and Cope Professorial Department of Rheumatology, Royal North Shore Hospital, Sydney, Australia
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17
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Norha J, Hautala AJ, Sjöros T, Laine S, Garthwaite T, Knuuti J, Löyttyniemi E, Vähä-Ypyä H, Sievänen H, Vasankari T, Heinonen IHA. Standing time and daily proportion of sedentary time are associated with pain-related disability in a one month accelerometer measurement in adults with overweight or obesity. Scand J Pain 2022; 22:317-324. [PMID: 34582633 DOI: 10.1515/sjpain-2021-0108] [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: 06/29/2021] [Accepted: 09/09/2021] [Indexed: 11/15/2022]
Abstract
OBJECTIVES The association between the subjective experience of pain-related disability (PRD) and device-measured physical activity (PA) and sedentary behavior (SB) in overweight and obese adults is not well known. The aim of this study was to investigate the associations of pain markers with accelerometer-measured SB duration and different intensities of PA among physically inactive middle-aged adults with overweight or obesity. METHODS This cross-sectional analysis included 72 subjects (27 men) with mean age of 57.9 (SD 6.7) years and mean BMI of 31.6 (SD 4.1) kg/m2. SB and standing time (ST), breaks in sedentary time, light physical activity (LPA) and moderate-to-vigorous physical activity (MVPA) were measured for four consecutive weeks (mean 25 days, SD 4) with a hip-worn triaxial accelerometer. Headache, musculoskeletal pain, back pain, and PRD were assessed by visual analog scales (VAS) and using the Oswestry disability index (ODI). RAND-36 questionnaire was applied to assess health-related quality of life. The associations were studied by linear models. RESULTS ST was positively and SB proportion was negatively associated with PRD when adjusted for age, sex, BMI, accelerometry duration, MVPA, pain medication use, and general health perceptions assessed by RAND-36. No associations were found between ST and back pain. SB or different PA intensities were not associated with pain experience at specific sites. CONCLUSIONS Longer daily ST, but not LPA or MVPA is associated with higher level of PRD. Correspondingly, higher proportion of SB is associated with lower level of PRD. This suggests that individuals with PRD prefer to stand, possibly to cope with pain. These results may highlight the importance of habitual standing behaviors in coping with experienced PRD in adults with overweight or obesity.
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Affiliation(s)
- Jooa Norha
- Faculty of Sport and Health Sciences, University of Jyväskylä, Jyväskylä, Finland
- Turku PET Centre, University of Turku and Turku University Hospital, Turku, Finland
| | - Arto J Hautala
- Faculty of Sport and Health Sciences, University of Jyväskylä, Jyväskylä, Finland
- Cardiovascular Research Group, Division of Cardiology, Oulu University Hospital, University of Oulu, Oulu, Finland
| | - Tanja Sjöros
- Turku PET Centre, University of Turku and Turku University Hospital, Turku, Finland
| | - Saara Laine
- Turku PET Centre, University of Turku and Turku University Hospital, Turku, Finland
| | - Taru Garthwaite
- Turku PET Centre, University of Turku and Turku University Hospital, Turku, Finland
| | - Juhani Knuuti
- Turku PET Centre, University of Turku and Turku University Hospital, Turku, Finland
| | | | - Henri Vähä-Ypyä
- The UKK Institute for Health Promotion Research, Tampere, Finland
| | - Harri Sievänen
- The UKK Institute for Health Promotion Research, Tampere, Finland
| | - Tommi Vasankari
- The UKK Institute for Health Promotion Research, Tampere, Finland
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - Ilkka H A Heinonen
- Turku PET Centre, University of Turku and Turku University Hospital, Turku, Finland
- Rydberg Laboratory of Applied Sciences, University of Halmstad, Halmstad, Sweden
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18
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Rigby L, Frey M, Alexander KL, De Carvalho D. Monitoring calf circumference: changes during prolonged constrained sitting. ERGONOMICS 2022; 65:631-641. [PMID: 34590970 DOI: 10.1080/00140139.2021.1979660] [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: 09/28/2020] [Accepted: 09/07/2021] [Indexed: 06/13/2023]
Abstract
Prolonged sitting has been associated with negative health effects; however, short-term time-varying exposure and response data is lacking. Twenty-two young and healthy participants were seated for 2 hours with the instruction to avoid the confounding effects of large leg movements while calf circumference, perceived discomfort, and lower limb muscle activity were collected. Calf circumference increased significantly (0.90 ± 0.32 cm) during sitting with no statistical differences between sexes. Perceived discomfort increased significantly over time in the low back and gluteal regions (p = 0.001-0.072, ηp2=0.080-0.360). On average, it took 20.31 ± 10.87 minutes of walking for calf measures to return to pre-sitting baseline. These results suggest that sitting for 2 hours without activity breaks may not be advisable and that recovery may take longer than expected. The exposure/response data from this study may be helpful in the design of future studies, with a larger and more general population, aiming to better define recommended duration/activity ratios for sitting-focused occupations. Practitioner summary: Leg swelling is a concern in prolonged sitting. In this study of young, healthy participants, we found a 2 hour constrained sitting exposure (controlling for large leg movements) induced significant increases in calf circumference that took an average of 20.31 ± 10.87 min of walking to return to baseline.Abbreviations: FMD: flow-mediated dilation, GSC: gastrocnemius; TA: tibialis anterior; EMG: electromyography; VAS: visual analog scale; MVC: maximum voluntary contractions.
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Affiliation(s)
- Laura Rigby
- School of Human Kinetics and Recreation, Memorial University, St. John's, Canada
| | - Mona Frey
- Faculty of Medicine, Memorial University of Newfoundland, St. John's, Canada
| | - Kara-Lyn Alexander
- School of Human Kinetics and Recreation, Memorial University, St. John's, Canada
| | - Diana De Carvalho
- Faculty of Medicine, Memorial University of Newfoundland, St. John's, Canada
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19
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Lantoine P, Lecocq M, Bougard C, Dousset E, Marqueste T, Bourdin C, Allègre JM, Bauvineau L, Mesure S. Influence of car seat firmness on seat pressure profiles and perceived discomfort during prolonged simulated driving. APPLIED ERGONOMICS 2022; 100:103666. [PMID: 34923297 DOI: 10.1016/j.apergo.2021.103666] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Revised: 12/03/2021] [Accepted: 12/07/2021] [Indexed: 06/14/2023]
Abstract
During a driving task, the seat-driver interface is particularly influenced by the external environment and seat features. This study compares the effect of two different seats (S1 - soft & S2 - firm) and the effect of visual simulation of different road types (city, highway, mountain, country), on pressure distribution and perceived discomfort during prolonged driving. Twenty participants drove two 3-h sessions (one per seat) on a static simulator. Contact Pressure (CP), Contact Surface (CS), and Seat Pressure Distribution Percentage (SPD%) were analyzed throughout, using two pressure mats positioned on seat cushion and backrest. Whole-body and local discomfort for each body part were rated every 20 min. The softer seat, S1, induced a greater contact surface on cushion and backrest and a lower SPD%, reflecting better pressure distribution. Pressure profiles were asymmetrical for both S1 and S2, with higher CP under left buttock (LBu) and right lower back (RLb) and greater CS under thighs and RLb. Pressure distribution was less homogeneous on mountain and city roads than on monotonous roads (highway and country). Despite the pressure differences between the seats, however, both led to similar increases in perceived whole-body discomfort throughout the driving session. Moreover, the highest discomfort scores were in the neck and the lower back areas, whatever the seat. These findings on pressure variables may have implications for the design of backrests and cushions to ensure more homogeneous pressure distribution, even though this is not shown to minimize perceived driver discomfort.
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Affiliation(s)
- Pascaline Lantoine
- Stellantis, Centre Technique de Vélizy, Vélizy-Villacoublay, Cedex, France; Aix-Marseille Université, CNRS, Institut des Sciences du Mouvement, (UMR 7287), Faculté des Sciences du Sport, CC910, 163, Avenue de Luminy, 13288, Marseille, Cedex 09, France.
| | - Mathieu Lecocq
- Aix-Marseille Université, CNRS, Institut des Sciences du Mouvement, (UMR 7287), Faculté des Sciences du Sport, CC910, 163, Avenue de Luminy, 13288, Marseille, Cedex 09, France.
| | - Clément Bougard
- Stellantis, Centre Technique de Vélizy, Vélizy-Villacoublay, Cedex, France.
| | - Erick Dousset
- Aix-Marseille Université, CNRS, Institut des Sciences du Mouvement, (UMR 7287), Faculté des Sciences du Sport, CC910, 163, Avenue de Luminy, 13288, Marseille, Cedex 09, France.
| | - Tanguy Marqueste
- Aix-Marseille Université, CNRS, Institut des Sciences du Mouvement, (UMR 7287), Faculté des Sciences du Sport, CC910, 163, Avenue de Luminy, 13288, Marseille, Cedex 09, France.
| | - Christophe Bourdin
- Aix-Marseille Université, CNRS, Institut des Sciences du Mouvement, (UMR 7287), Faculté des Sciences du Sport, CC910, 163, Avenue de Luminy, 13288, Marseille, Cedex 09, France.
| | - Jean-Marc Allègre
- Stellantis, Centre Technique de Vélizy, Vélizy-Villacoublay, Cedex, France.
| | - Laurent Bauvineau
- Stellantis, Centre Technique de Vélizy, Vélizy-Villacoublay, Cedex, France.
| | - Serge Mesure
- Aix-Marseille Université, CNRS, Institut des Sciences du Mouvement, (UMR 7287), Faculté des Sciences du Sport, CC910, 163, Avenue de Luminy, 13288, Marseille, Cedex 09, France.
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20
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Rodríguez-Romero B, Smith MD, Pértega-Díaz S, Quintela-del-Rio A, Johnston V. Thirty Minutes Identified as the Threshold for Development of Pain in Low Back and Feet Regions, and Predictors of Intensity of Pain during 1-h Laboratory-Based Standing in Office Workers. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:2221. [PMID: 35206409 PMCID: PMC8871560 DOI: 10.3390/ijerph19042221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Revised: 02/11/2022] [Accepted: 02/13/2022] [Indexed: 01/27/2023]
Abstract
This study with 40 office workers investigated (a) the effect of time spent standing on low- back and lower limb pain during a 1-h laboratory-based task; (b) the standing time after which a significant increase in pain is likely; and (c) the individual, physical and psychosocial factors that predict pain. The primary outcome was bodily location of pain and pain intensity on a 100-mm Visual Analogue Scale recorded at baseline and every 15 min. Physical measures included trunk and hip motor control and endurance. Self-report history of pain, physical activity, psychosocial job characteristics, pain catastrophizing and general health status were collected. Univariate analysis and regression models were included. The prevalence of low-back pain increased from 15% to 40% after 30 min while feet pain increased to 25% from 0 at baseline. The intensity of low-back and lower limb pain also increased over time. A thirty-minute interval was identified as the threshold for the development and increase in low-back and feet pain. Modifiable factors were associated with low-back pain intensity-lower hip abductor muscle endurance and poorer physical health, and with feet symptoms-greater body mass index and less core stability.
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Affiliation(s)
- Beatriz Rodríguez-Romero
- Psychosocial Intervention and Functional Rehabilitation Research Group, Department of Physiotherapy, Medicine and Biomedical Sciences, Campus Oza, University of A Coruña, 15071 A Coruna, Spain
| | - Michelle D. Smith
- School of Health and Rehabilitation Sciences, The University of Queensland, Brisbane 4072, Australia; (M.D.S.); (V.J.)
| | - Sonia Pértega-Díaz
- Rheumatology and Health Research Group, Department of Health Sciences, Campus Esteiro, University of A Coruña, 15471 Ferrol, Spain;
| | | | - Venerina Johnston
- School of Health and Rehabilitation Sciences, The University of Queensland, Brisbane 4072, Australia; (M.D.S.); (V.J.)
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21
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Suda AJ, Kientopf D, Leithner A, Streeck J, Colshorn T, Dorotka R, Schneider M, Höppchen I. [No Evidence for the Biomechanical and Pathophysiological Explanatory Models of Musculoskeletal Diseases According to Liebscher & Bracht]. ZEITSCHRIFT FUR ORTHOPADIE UND UNFALLCHIRURGIE 2022; 160:13-18. [PMID: 35144293 PMCID: PMC8831037 DOI: 10.1055/a-1716-2274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Affiliation(s)
- Arnold J Suda
- AUVA Trauma Center Salzburg, Department of Orthopaedics and Trauma Surgery, Allgemeine Unfallversicherungsanstalt, Salzburg, Austria.,Center for Orthopaedics and Trauma Surgery, Ruprecht Karls University Heidelberg Faculty of Medicine Mannheim, Mannheim, Germany
| | - Dale Kientopf
- Moversity, Fit by Dale, Kaltenkirchen, Germany.,Medical Faculty, Albert-Ludwigs-Universität Freiburg Medizinische Fakultät, Freiburg, Germany
| | - Andreas Leithner
- Department of Orthopedics and Trauma Surgery, Hospital of the Federal State of Styria and University Hospital Graz, Graz, Austria.,President, Österreichische Gesellschaft für Orthopädie und orthopädische Chirurgie, Vienna, Austria
| | - Jesko Streeck
- Physiotherapy, Manumed - Streeck, Bobenheim-Roxheim, Germany
| | - Thomas Colshorn
- Physiotherapist and Sports Science, Physiotherapy, Bremen, Germany
| | - Ronald Dorotka
- Orthopadic Surgery, Orthopädie-Zentrum Innere Stadt, Vienna, Austria.,Präsident, Berufsverband Österreichischer Fachärzte für Orthopädie, Vienna, Austria
| | - Markus Schneider
- Pain Therapy, alphaMED/alphaSPINE, Bamberg, Germany.,Interdisziplinäre Gesellschaft für orthopädisch-unfallchirurgische und allgemeine Schmerztherapie, President of IGOST, Ravensburg, Germany.,Leiter der Sektion Schmerztherapie, DGOOC, Frankfurt/Main, Germany
| | - Isabel Höppchen
- Ludwig Boltzmann Institute for Digital Health and Prevention, Ludwig Boltzmann Gesellschaft, Wien, Austria.,Center for Human-Computer Interaction, Paris Lodron University of Salzburg, Salzburg, Austria
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22
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Implementing Machine Learning Algorithms to Classify Postures and Forecast Motions When Using a Dynamic Chair. SENSORS 2022; 22:s22010400. [PMID: 35009940 PMCID: PMC8749632 DOI: 10.3390/s22010400] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 12/17/2021] [Accepted: 12/27/2021] [Indexed: 02/04/2023]
Abstract
Many modern jobs require long periods of sitting on a chair that may result in serious health complications. Dynamic chairs are proposed as alternatives to the traditional sitting chairs; however, previous studies have suggested that most users are not aware of their postures and do not take advantage of the increased range of motion offered by the dynamic chairs. Building a system that identifies users’ postures in real time, as well as forecasts the next few postures, can bring awareness to the sitting behavior of each user. In this study, machine learning algorithms have been implemented to automatically classify users’ postures and forecast their next motions. The random forest, gradient decision tree, and support vector machine algorithms were used to classify postures. The evaluation of the trained classifiers indicated that they could successfully identify users’ postures with an accuracy above 90%. The algorithm can provide users with an accurate report of their sitting habits. A 1D-convolutional-LSTM network has also been implemented to forecast users’ future postures based on their previous motions, the model can forecast a user’s motions with high accuracy (97%). The ability of the algorithm to forecast future postures could be used to suggest alternative postures as needed.
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23
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Leivas EG, Corrêa LA, Nogueira LAC. The relationship between low back pain and the basic lumbar posture at work: a retrospective cross-sectional study. Int Arch Occup Environ Health 2022; 95:25-33. [PMID: 34626219 DOI: 10.1007/s00420-021-01778-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2020] [Accepted: 02/23/2021] [Indexed: 11/25/2022]
Abstract
PURPOSE This study aimed to analyze the relationship between work-related lumbar posture (sitting, standing, walking, alternating posture) and LBP in workers. METHODS This is a retrospective study comprising 529 records of adult workers from a database of a private company. Predominant work-related lumbar posture was classified based on time spent in each posture. A total of 22 personal, occupational, clinical, and psychosocial covariates were evaluated. LBP symptoms in the last 12 months and during the last 7 days were the outcomes of the study. The multivariate analysis model evaluated the independent relationship between the work-related lumbar posture classification and other potential exposure factors with LBP. RESULTS The adjusted logistic regression model indicated that predominant walking reduced the likelihood to report LBP during the last 12 months when compared to standing (OR = 0.54; 95% CI 0.30, 0.99; p = 0.048), but there is no association between work-related postures and recent LBP. The adjusted analyses also revealed an association between LBP during the last 12 months and female sex, blue-collar task, frequently feeling tiredness, pain at any other body region previous 12 months, previous LBP, and monotonous work. Recent LBP was associated with female sex, pain at any other body region last 7 days, and previous LBP. CONCLUSIONS Standing posture increases the likelihood to report LBP during the last 12 months when compared to walking. LBP over previous year and during the previous 7 days was associated with personal and clinical factors.
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Affiliation(s)
- Eduardo Gallas Leivas
- Rehabilitation Science Postgraduation Program, Augusto Motta University Center, Praça das Nações, 34, Bonsucesso., Rio de Janeiro, RJ, CEP 21041-010, Brazil
| | - Leticia Amaral Corrêa
- Rehabilitation Science Postgraduation Program, Augusto Motta University Center, Praça das Nações, 34, Bonsucesso., Rio de Janeiro, RJ, CEP 21041-010, Brazil
| | - Leandro Alberto Calazans Nogueira
- Rehabilitation Science Postgraduation Program, Augusto Motta University Center, Praça das Nações, 34, Bonsucesso., Rio de Janeiro, RJ, CEP 21041-010, Brazil.
- Physiotherapy Department, Federal Institute of Rio de Janeiro (IFRJ), Rio de Janeiro, Brazil.
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Motahari-Nezhad H, Fgaier M, Mahdi Abid M, Péntek M, Gulácsi L, Zrubka Z. Scoping review of systematic reviews of digital biomarker-based studies (Preprint). JMIR Mhealth Uhealth 2021; 10:e35722. [DOI: 10.2196/35722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 04/20/2022] [Accepted: 07/26/2022] [Indexed: 11/13/2022] Open
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Dzakpasu FQS, Carver A, Brakenridge CJ, Cicuttini F, Urquhart DM, Owen N, Dunstan DW. Musculoskeletal pain and sedentary behaviour in occupational and non-occupational settings: a systematic review with meta-analysis. Int J Behav Nutr Phys Act 2021; 18:159. [PMID: 34895248 PMCID: PMC8666269 DOI: 10.1186/s12966-021-01191-y] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Accepted: 08/23/2021] [Indexed: 01/07/2023] Open
Abstract
BACKGROUND Sedentary behaviour (SB; time spent sitting) is associated with musculoskeletal pain (MSP) conditions; however, no prior systematic review has examined these associations according to SB domains. We synthesised evidence on occupational and non-occupational SB and MSP conditions. METHODS Guided by a PRISMA protocol, eight databases (MEDLINE, CINAHL, PsycINFO, Web of Science, Scopus, Cochrane Library, SPORTDiscus, and AMED) and three grey literature sources (Google Scholar, WorldChat, and Trove) were searched (January 1, 2000, to March 17, 2021) for original quantitative studies of adults ≥ 18 years. Clinical-condition studies were excluded. Studies' risk of bias was assessed using the QualSyst checklist. For meta-analyses, random effect inverse-variance pooled effect size was estimated; otherwise, best-evidence synthesis was used for narrative review. RESULTS Of 178 potentially-eligible studies, 79 were included [24 general population; 55 occupational (incuding15 experimental/intervention)]; 56 studies were of high quality, with scores > 0.75. Data for 26 were meta-synthesised. For cross-sectional studies of non-occupational SB, meta-analysis showed full-day SB to be associated with low back pain [LBP - OR = 1.19(1.03 - 1.38)]. Narrative synthesis found full-day SB associations with knee pain, arthritis, and general MSP, but the evidence was insufficient on associations with neck/shoulder pain, hip pain, and upper extremities pain. Evidence of prospective associations of full-day SB with MSP conditions was insufficient. Also, there was insufficient evidence on both cross-sectional and prospective associations between leisure-time SB and MSP conditions. For occupational SB, cross-sectional studies meta-analysed indicated associations of self-reported workplace sitting with LBP [OR = 1.47(1.12 - 1.92)] and neck/shoulder pain [OR = 1.73(1.46 - 2.03)], but not with extremities pain [OR = 1.17(0.65 - 2.11)]. Best-evidence synthesis identified inconsistent findings on cross-sectional association and a probable negative prospective association of device-measured workplace sitting with LBP-intensity in tradespeople. There was cross-sectional evidence on the association of computer time with neck/shoulder pain, but insufficient evidence for LBP and general MSP. Experimental/intervention evidence indicated reduced LBP, neck/shoulder pain, and general MSP with reducing workplace sitting. CONCLUSIONS We found cross-sectional associations of occupational and non-occupational SB with MSP conditions, with occupational SB associations being occupation dependent, however, reverse causality bias cannot be ruled out. While prospective evidence was inconclusive, reducing workplace sitting was associated with reduced MSP conditions. Future studies should emphasise prospective analyses and examining potential interactions with chronic diseases. PROTOCOL REGISTRATION PROSPERO ID # CRD42020166412 (Amended to limit the scope).
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Affiliation(s)
- Francis Q S Dzakpasu
- Mary MacKillop Institute of Health Research, Australian Catholic University, Melbourne, VIC, Australia.
- Physical Activity Laboratory, Baker Heart and Diabetes Institute, Melbourne, VIC, Australia.
- Behavioural Epidemiology Laboratory, Baker Heart and Diabetes Institute, Melbourne, VIC, Australia.
| | - Alison Carver
- Mary MacKillop Institute of Health Research, Australian Catholic University, Melbourne, VIC, Australia
| | - Christian J Brakenridge
- Mary MacKillop Institute of Health Research, Australian Catholic University, Melbourne, VIC, Australia
- Physical Activity Laboratory, Baker Heart and Diabetes Institute, Melbourne, VIC, Australia
- Behavioural Epidemiology Laboratory, Baker Heart and Diabetes Institute, Melbourne, VIC, Australia
| | - Flavia Cicuttini
- Central Clinical School/Department of Epidemiology and Preventive Medicine, Faculty of Medicine, Nursing and Health Sciences, Monash University, Melbourne, VIC, Australia
| | - Donna M Urquhart
- Central Clinical School/Department of Epidemiology and Preventive Medicine, Faculty of Medicine, Nursing and Health Sciences, Monash University, Melbourne, VIC, Australia
| | - Neville Owen
- Behavioural Epidemiology Laboratory, Baker Heart and Diabetes Institute, Melbourne, VIC, Australia
- Centre for Urban Transitions, Swinburne University of Technology, Melbourne, VIC, Australia
| | - David W Dunstan
- Mary MacKillop Institute of Health Research, Australian Catholic University, Melbourne, VIC, Australia
- Physical Activity Laboratory, Baker Heart and Diabetes Institute, Melbourne, VIC, Australia
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Frey M, Barrett M, De Carvalho D. Effect of a dynamic seat pan design on spine biomechanics, calf circumference and perceived pain during prolonged sitting. APPLIED ERGONOMICS 2021; 97:103546. [PMID: 34399370 DOI: 10.1016/j.apergo.2021.103546] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Revised: 07/11/2021] [Accepted: 07/30/2021] [Indexed: 06/13/2023]
Abstract
This study investigates the effects of a dynamic seat pan design on sitting biomechanics, perceived pain and seat movement compared to a control. Thirty male participants were recruited for two experimental sessions consisting of a 2-h sitting exposure (standardized typing task). Spine angles, back muscle activity, perceived pain and calf circumference were measured pre and post exposure. Sitting in the dynamic condition resulted in lower pain ratings (p = 0.031), decreased calf circumference (p < 0.001), lower average seat pressure (p < 0.001), and greater seat contact area (p = 0.003) compared to the control. Spine angles and low back EMG for all 6 muscles showed no significant differences between chair conditions. These results suggest this dynamic seat pan design is effective at decreasing several negative components associated with sitting for the occupant. Future work should examine the longer-term effects of dynamic office chair features in the field setting with a more generalizable population.
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Affiliation(s)
- M Frey
- Faculty of Medicine, Memorial University of Newfoundland, St. John's, NL, Canada
| | - M Barrett
- Faculty of Medicine, Memorial University of Newfoundland, St. John's, NL, Canada
| | - D De Carvalho
- Faculty of Medicine, Memorial University of Newfoundland, St. John's, NL, Canada.
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Wong CK, Mak RY, Kwok TS, Tsang JS, Leung MY, Funabashi M, Macedo LG, Dennett L, Wong AY. Prevalence, Incidence, and Factors Associated With Non-Specific Chronic Low Back Pain in Community-Dwelling Older Adults Aged 60 Years and Older: A Systematic Review and Meta-Analysis. THE JOURNAL OF PAIN 2021; 23:509-534. [PMID: 34450274 DOI: 10.1016/j.jpain.2021.07.012] [Citation(s) in RCA: 62] [Impact Index Per Article: 20.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Revised: 07/10/2021] [Accepted: 07/27/2021] [Indexed: 12/21/2022]
Abstract
Chronic low back pain (CLBP) is common among older adults. This systematic review aimed to summarize: (1) the prevalence and incidence of CLBP in older adults, and (2) demographic, psychological, and clinical factors positively/negatively associated with prevalence/incidence of CLBP among older adults. Four databases were searched to identify relevant publications. Ten studies (31,080 older adults) were included after being screened by 5 independent reviewers using predetermined criteria. The methodological quality of these studies was evaluated by standardized tools. The quality of evidence for all factors were appraised by modified GRADE for cohort studies. Twenty-eight and 1 factors were associated with a higher prevalence and a lower 5-year cumulative incidence of CLBP, respectively. No prognostic factor was identified. There was very limited to limited evidence that females, obesity, anxiety, depression, mental disorders, self-expectation of recovery, self-perceived health status, lifestyle (smoking, daily fluoride consumption), previous falls or lower body injury, retirement/disability due to ill health, family history of body pain, comorbidity (knee osteoarthritis, or chronic obstructive pulmonary disease with/without hypertension), weak abdominal muscles, leg pain, leg pain intensity, widespread pain, pain interference on functioning, use of pain medication, occupational exposure (driving for >20 years, or jobs involving bending/twisting for >10 years), disc space narrowing and severe facet osteoarthritis were significantly related to a higher prevalence of CLBP in older adults. However, very limited evidence suggested that intermediate level of leisure-time physical activity was associated with a lower prevalence of CLBP in older adults. Given the aging population and limited information regarding risk factors for CLBP in older adults, future high-quality prospective studies should identify relevant risk factors to help develop proper preventive and treatment strategies. PERSPECTIVE: Despite the high prevalence of non-specific chronic low back pain among older adults, there is only very limited to limited evidence regarding factors associated with a higher prevalence of chronic low back pain in this population. Given the aging population, high-quality prospective studies are warranted to address this gap.
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Affiliation(s)
- Charles Kw Wong
- Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Hong Kong SAR, China
| | - Rebecca Yw Mak
- Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Hong Kong SAR, China
| | - Terence Sy Kwok
- Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Hong Kong SAR, China
| | - Joshua Sh Tsang
- Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Hong Kong SAR, China
| | - Marco Yc Leung
- Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Hong Kong SAR, China
| | - Martha Funabashi
- Division of Research and Innovation, Canadian Memorial of Chiropractic College, Toronto, Ontario, Canada; Department of Chiropractic, Université du Québec à Trois-Rivières, Trois-Rivières, Quebec, Canada
| | - Luciana G Macedo
- School of Rehabilitation Science, McMaster University, Hamilton, Ontario, Canada
| | - Liz Dennett
- Scott Health Sciences Library, University of Alberta, Edmonton, Alberta, Canada
| | - Arnold Yl Wong
- Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Hong Kong SAR, China.
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Rodríguez-Romero B, Smith MD, Quintela-del-Rio A, Johnston V. What Psychosocial and Physical Characteristics Differentiate Office Workers Who Develop Standing-Induced Low Back Pain? A Cross-Sectional Study. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:ijerph17197104. [PMID: 32998273 PMCID: PMC7579504 DOI: 10.3390/ijerph17197104] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Revised: 09/19/2020] [Accepted: 09/25/2020] [Indexed: 11/16/2022]
Abstract
This study examines demographic, physical and psychosocial factors associated with an increase in low back pain (LBP) during a one-hour standing task. A cross-sectional survey with 40 office workers was conducted. The primary outcome was pain severity during a one-hour standing task recorded every 15 min using a 100 mm Visual Analogue Scale (VAS). Participants were defined as pain developers (PD), if they reported a change in pain of ≥10 mm from baseline, or non-pain developers (NPD). Physical outcomes included participant-rated and examiner-rated trunk and hip motor control and endurance. Self-report history of LBP, physical activity, psychosocial job characteristics, general health and pain catastrophising were collected. Fourteen participants were PD. Hip abduction, abdominal and spinal muscle endurance was lower for PD (p ≤ 0.05). PD had greater self-reported difficulty performing active hip abduction and active straight leg raise tests (p ≤ 0.04). Those reporting a lifetime, 12 month or 7-day history of LBP (p < 0.05) and lower self-reported physical function (p = 0.01) were more likely to develop LBP during the standing task. In conclusion, a history of LBP, reduced trunk and hip muscle endurance and deficits in lumbopelvic/hip motor control may be important to consider in office workers experiencing standing-induced LBP.
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Affiliation(s)
- Beatriz Rodríguez-Romero
- Psychosocial Intervention and Functional Rehabilitation Research Group, Department of Physiotherapy, Medicine and Biomedical Sciences, Faculty of Physiotherapy, Universidade da Coruña, Campus de A Coruña, 15071 A Coruna, Spain
- Correspondence: ; Tel.: +34-981-167000 (ext. 5841)
| | - Michelle D Smith
- School of Health and Rehabilitation Sciences, The University of Queensland, Brisbane 4072, Australia; (M.D.S.); (V.J.)
| | - Alejandro Quintela-del-Rio
- Psychosocial Intervention and Functional Rehabilitation Research Group, Department of Mathematics, Faculty of Physiotherapy, Universidade de A Coruna, 15071 A Coruna, Spain;
| | - Venerina Johnston
- School of Health and Rehabilitation Sciences, The University of Queensland, Brisbane 4072, Australia; (M.D.S.); (V.J.)
- Recover Injury Research Centre, The University of Queensland, Brisbane 4006, Australia
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