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  • 1. Conradsson, D.
    et al.
    Friden, C.
    Nilsson-Wikmar, L.
    Äng, Björn
    Ankle-joint mobility and standing squat posture in elite junior cross-country skiers. A pilot study2010In: Journal of Sports Medicine and Physical Fitness, ISSN 0022-4707, E-ISSN 1827-1928, Vol. 50, no 2, p. 132-8Article in journal (Refereed)
  • 2. de Alwis, M. P.
    et al.
    Lo Martire, R.
    Äng, Björn
    Garme, K.
    Development and validation of a web-based questionnaire for surveying the health and working conditions of high-performance marine craft populations2016In: BMJ Open, ISSN 2044-6055, E-ISSN 2044-6055, Vol. 6, no 6, p. e011681-Article in journal (Refereed)
  • 3.
    Dragsten, Mirjam
    et al.
    Dalarna University, School of Education, Health and Social Studies, Caring Science.
    Salmonsson, Ingela
    Dalarna University, School of Education, Health and Social Studies, Caring Science.
    Vårdpersonalens kunskapsläge i hjärtlungräddning samt följsamhet till det svenska hjärtlungräddningsregistret på ett länssjukhus i Mellansverige: En kvantitativ tvärsnittsstudie2015Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Objective: To identify the healthcare professional´s knowledge and training frequency of cardiopulmony resuscitation in a county hospital in central Sweden, and compliance of the Swedish Register of cardiopulmony resuscitation.

    Method: Survey with quantitative approach consisting of 177 respondents, as well as a retrospective observational study.

    Main results: Individuals answered correctly to all knowledge questions, but as a group, there were deficiencies in the knowledge of cardiopulmonary resuscitation. When comparing healthcare professional´s knowledge it was demonstrated that in four of the seven knowledge questions it was a significant difference in knowledge between the health professionals who have more regular training than those with fewer. Those who had more regular education had more right answers. A significant difference was also detected depending on when they had their latest CPR training, where those who have had their education more recently also had more right answers. Compliance of healthcare professional´s to register patients treated for cardiac arrest in hospital at the Swedish CPR registry, can be summarized by the deficiencies in reporting. Conclusion: It is important to create conditions for frequent training to health professionals to increase the knowledge and preparedness in CPR, which can also be seen as a quality assurance work. An improvement is necessary in order to improve compliance to registration.

  • 4. Farrohknia, Nasim
    et al.
    Castrén, Maaret
    Ehrenberg, Anna
    Dalarna University, School of Education, Health and Social Studies, Caring Science/Nursing.
    Lind, Lars
    Oredsson, Sven
    Jonsson, Håkan
    Asplund, Kjell
    Göransson, Katarina
    Emergency department triage scales and their components: a systematic review of the scientific evidence2011In: Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine, ISSN 1757-7241, E-ISSN 1757-7241, Vol. 19, no 42Article in journal (Refereed)
    Abstract [en]

    Emergency department (ED) triage is used to identify patients' level of urgency and treat them based on their triage level. The global advancement of triage scales in the past two decades has generated considerable research on the validity and reliability of these scales. This systematic review aims to investigate the scientific evidence for published ED triage scales. The following questions are addressed:

    1. Does assessment of individual vital signs or chief complaints affect mortality during the hospital stay or within 30 days after arrival at the ED?

    2. What is the level of agreement between clinicians' triage decisions compared to each other or to a gold standard for each scale (reliability)?

    3. How valid is each triage scale in predicting hospitalization and hospital mortality?

    A systematic search of the international literature published from 1966 through March 31, 2009 explored the British Nursing Index, Business Source Premier, CINAHL, Cochrane Library, EMBASE, and PubMed. Inclusion was limited to controlled studies of adult patients (≥15 years) visiting EDs for somatic reasons. Outcome variables were death in ED or hospital and need for hospitalization (validity). Methodological quality and clinical relevance of each study were rated as high, medium, or low. The results from the studies that met the inclusion criteria and quality standards were synthesized applying the internationally developed GRADE system. Each conclusion was then assessed as having strong, moderately strong, limited, or insufficient scientific evidence. If studies were not available, this was also noted.

    We found ED triage scales to be supported, at best, by limited and often insufficient evidence.

    The ability of the individual vital signs included in the different scales to predict outcome is seldom, if at all, studied in the ED setting. The scientific evidence to assess interrater agreement (reliability) was limited for one triage scale and insufficient or lacking for all other scales. Two of the scales yielded limited scientific evidence, and one scale yielded insufficient evidence, on which to assess the risk of early death or hospitalization in patients assigned to the two lowest triage levels on a 5-level scale (validity).

  • 5. Gladh, K.
    et al.
    Lo Martire, R.
    Äng, Björn
    Lindholm, P.
    Nilsson, J.
    Westman, A.
    Decelerations of parachute opening shock in skydivers2017In: Aerospace Medicine and Human Performance, ISSN 2375-6314, Vol. 88, no 2, p. 121-127Article in journal (Refereed)
  • 6. Gladh, K.
    et al.
    Äng, Björn
    Lindholm, P.
    Nilsson, J.
    Westman, A.
    Decelerations and muscle responses during parachute opening shock2013In: Aviation, Space and Environmental Medicine, ISSN 0095-6562, E-ISSN 1943-4448, Vol. 84, no 11, p. 1205-10Article in journal (Refereed)
  • 7. Grooten, W. J.
    et al.
    Conradsson, D.
    Äng, Björn
    Franzen, E.
    Is active sitting as active as we think?2013In: Ergonomics, ISSN 0014-0139, E-ISSN 1366-5847, Vol. 56, no 8, p. 1304-14Article in journal (Refereed)
  • 8. Grooten, W. J.
    et al.
    Äng, Björn
    Reliability of measurements of wrist extension force obtained with a Nicholas Manual Muscle Tester (NMMT)2010In: Physiotherapy Theory and Practice, ISSN 0959-3985, E-ISSN 1532-5040, Vol. 26, no 4, p. 281-7Article in journal (Refereed)
  • 9. Grooten, Wilhelmus Johannes Andreas
    et al.
    Tseli, Elena
    Äng, Björn
    Dalarna University, School of Education, Health and Social Studies, Medical Science. Karolinska institutet; Uppsala universitet.
    Boersma, Katja
    Stålnacke, Britt-Marie
    Gerdle, Björn
    Enthoven, Paul
    Elaborating on the assessment of the risk of bias in prognostic studies in pain rehabilitation using QUIPS-aspects of interrater agreement2019In: Diagnostic and Prognostic Research, ISSN 2397-7523, Vol. 3, article id 5Article in journal (Refereed)
    Abstract [en]

    Background: Many studies have been performed to identify important prognostic factors for outcomes after rehabilitation of patients with chronic pain, and there is a need to synthesize them through systematic review. In this process, it is important to assess the study quality and risk of bias. The "Quality In Prognosis Studies" (QUIPS) tool has been developed for this purpose and consists of several prompting items categorized into six domains, and each domain is judged on a three-grade scale (low, moderate or high risk of bias). The aim of the present study was to determine the interrater agreement of the risk of bias assessment in prognostic studies of patients with chronic pain using QUIPS and to elaborate on the use of this instrument.

    Methods: We performed a systematic review and a meta-analysis of prognostic factors for long-term outcomes after multidisciplinary rehabilitation in patients with chronic pain. Two researchers rated the risk of bias in 43 published papers in two rounds (15 and 28 papers, respectively). The interrater agreement and Cohen's quadratic weighted kappa coefficient (κ) and 95% confidence interval (95%CI) were calculated in all domains and separately for the first and second rounds.

    Results: The raters agreed in 61% of the domains (157 out of 258), with similar interrater agreement in the first (59%, 53/90) and second rounds (62%, 104/168). The overall weighted kappa coefficient (kappa for all domains and all papers) was weak: κ = 0.475 (95%CI = 0.358-0.601). A "minimal agreement" between the raters was found in the first round, κ = 0.323 (95%CI = 0.129-0.517), but increased to "weak agreement" in the second round, κ = 0.536 (95%CI = 0.390-0.682).

    Conclusion: Despite a relatively low interrater agreement, QUIPS proved to be a useful tool in assessing the risk of bias when performing a meta-analysis of prognostic studies in pain rehabilitation, since it demands of raters to discuss and investigate important aspects of study quality. Some items were particularly hard to differentiate in-between, and a learning phase was required to increase the interrater agreement. This paper highlights several aspects of the tool that should be kept in mind when rating the risk of bias in prognostic studies, and provides some suggestions on common pitfalls to avoid during this process.

    Trial registration: PROSPERO CRD42016025339; registered 05 February 2016.

  • 10. Heijne, A.
    et al.
    Äng, Björn
    Werner, S.
    Predictive factors for 12-month outcome after anterior cruciate ligament reconstruction2009In: Scandinavian Journal of Medicine and Science in Sports, ISSN 0905-7188, E-ISSN 1600-0838, Vol. 19, no 6, p. 842-9Article in journal (Refereed)
  • 11. Lo Martire, R.
    et al.
    Gladh, K.
    Westman, A.
    Lindholm, P.
    Nilsson, J.
    Äng, Björn
    Neck muscle activity in skydivers during parachute opening shock2016In: Scandinavian Journal of Medicine and Science in Sports, ISSN 0905-7188, E-ISSN 1600-0838, Vol. 26, no 3, p. 307-16Article in journal (Refereed)
  • 12. Lo Martire, Riccardo
    et al.
    Gladh, Kristofer
    Westman, Anton
    Äng, Björn
    Dalarna University, School of Education, Health and Social Studies, Sport and Health Science. Karolinska Institutet.
    Neck muscle EMG-force relationship and its reliability during isometric contractions2017In: Sports medicine - open, ISSN 2199-1170, Vol. 3, no 1, article id 16Article in journal (Refereed)
    Abstract [en]

    BACKGROUND: Susceptible to injury, the neck is subject to scientific investigations, frequently aiming to elucidate possible injury mechanisms via surface electromyography (EMG) by indirectly estimating cervical loads. Accurate estimation requires that the EMG-force relationship is known and that its measurement error is quantified. Hence, this study examined the relationship between EMG and isometric force amplitude of the anterior neck (AN), the upper posterior neck (UPN), and the lower posterior neck (LPN) and then assessed the relationships' test-retest reliability across force-percentiles within and between days.

    METHODS: EMG and force data were sampled from 18 participants conducting randomly ordered muscle contractions at 5-90% of maximal voluntary force during three trials over 2 days. EMG-force relationships were modeled with general linear mixed-effects regression. Overall fitted lines' between-trial discrepancies were evaluated. Finally, the reliability of participants' fitted regression lines was quantified by an intraclass correlation coefficient (ICC) and the standard error of measurement (SEM).

    RESULTS: A rectilinear model had the best fit for AN while positively oriented quadratic models had the best fit for UPN and LPN, with mean adjusted conditional coefficients of determination and root mean square errors of 0.97-0.98 and 4-5%, respectively. Overall EMG-force relationships displayed a maximum 6% between-trial discrepancy and over 20% of maximal force, and mean ICC was above 0.79 within day and 0.27-0.61 between days across areas. Corresponding SEM was below 12% both within and between days across areas, excluding UPN between days, for which SEM was higher.

    CONCLUSIONS: EMG-force relationships were elucidated for three neck areas, and provided models allow inferences to be drawn from EMG to force on a group level. Reliability of EMG-force relationship models was higher within than between days, but typically acceptable for all but the lowest contraction intensities, and enables adjustment for measurement imprecision in future studies.

  • 13. Nilsson, J.
    et al.
    Friden, C.
    Buren, V.
    Westman, A.
    Lindholm, P.
    Äng, Björn
    Musculoskeletal pain and related risks in skydivers: a population-based survey2013In: Aviation, Space and Environmental Medicine, ISSN 0095-6562, E-ISSN 1943-4448, Vol. 84, no 10, p. 1034-40Article in journal (Refereed)
  • 14. Nilsson, J.
    et al.
    Friden, C.
    Buren, V.
    Äng, Björn
    Development and validation of a web-based questionnaire for surveying skydivers2011In: Aviation, Space and Environmental Medicine, ISSN 0095-6562, E-ISSN 1943-4448, Vol. 82, no 6, p. 610-4Article in journal (Refereed)
  • 15.
    Nordin, Susanna
    et al.
    Dalarna University, School of Education, Health and Social Studies, Caring Science/Nursing.
    Elf, Marie
    Dalarna University, School of Education, Health and Social Studies, Caring Science/Nursing.
    McKee, Kevin
    Dalarna University, School of Education, Health and Social Studies, Social Work.
    Wijk, Helle
    Att översätta och anpassa ett engelskt instrument för bedömning av fysisk miljö på särskilt boende till svenska förhållanden: utmaningar och erfarenheter2012Conference paper (Refereed)
  • 16.
    Nordin, Susanna
    et al.
    Dalarna University, School of Education, Health and Social Studies, Caring Science/Nursing.
    Wijk, Helle
    McKee, Kevin
    Dalarna University, School of Education, Health and Social Studies, Social Work.
    Elf, Marie
    Dalarna University, School of Education, Health and Social Studies, Caring Science/Nursing.
    Assessment of the physical environment - a way to high quality care2012Conference paper (Refereed)
  • 17. Pousette, M. W.
    et al.
    Lo Martire, R.
    Linder, J.
    Kristoffersson, M.
    Äng, Björn
    Neck Muscle Strain in Air Force Pilots Wearing Night Vision Goggles2016In: Aerospace Medicine and Human Performance, ISSN 2375-6322, Vol. 87, no 11, p. 928-932Article in journal (Refereed)
  • 18. Rasmussen-Barr, E.
    et al.
    Campello, M.
    Arvidsson, I.
    Nilsson-Wikmar, L.
    Äng, Björn
    Factors predicting clinical outcome 12 and 36 months after an exercise intervention for recurrent low-back pain2012In: Disability and Rehabilitation, ISSN 0963-8288, E-ISSN 1464-5165, Vol. 34, no 2, p. 136-44Article in journal (Refereed)
  • 19. Rasmussen-Barr, E.
    et al.
    Granstrom, H.
    Äng, Björn
    Inter- and intra-observer reliability of three movement control tests for the lumbo-pelvic complex2015In: Physiotherapy, ISSN 0031-9406, E-ISSN 1873-1465, Vol. 101, no suppl. 1, p. e1259-e1260Article in journal (Refereed)
  • 20. Rasmussen-Barr, E.
    et al.
    Äng, Björn
    Arvidsson, I.
    Nilsson-Wikmar, L.
    Graded exercise for recurrent low-back pain: a randomized, controlled trial with 6-, 12-, and 36-month follow-ups2009In: Spine, ISSN 0362-2436, E-ISSN 1528-1159, Vol. 34, no 3, p. 221-8Article in journal (Refereed)
  • 21. Soderberg, J.
    et al.
    Grooten, W. J.
    Äng, Björn
    Effects of eccentric training on hand strength in subjects with lateral epicondylalgia: a randomized-controlled trial2012In: Scandinavian Journal of Medicine and Science in Sports, ISSN 0905-7188, E-ISSN 1600-0838, Vol. 22, no 6, p. 797-803Article in journal (Refereed)
  • 22. Thuresson, M.
    et al.
    Äng, Björn
    Linder, J.
    Harms-Ringdahl, K.
    Intra-rater reliability of electromyographic recordings and subjective evaluation of neck muscle fatigue among helicopter pilots2005In: Journal of Electromyography & Kinesiology, ISSN 1050-6411, E-ISSN 1873-5711, Vol. 15, no 3, p. 323-31Article in journal (Refereed)
  • 23. Thuresson, M.
    et al.
    Äng, Björn
    Linder, J.
    Harms-Ringdahl, K.
    Mechanical load and EMG activity in the neck induced by different head-worn equipment and neck postures2005In: International Journal of Industrial Ergonomics, ISSN 0169-8141, E-ISSN 1872-8219, Vol. 35, no 1, p. 13-18Article in journal (Refereed)
  • 24. Thuresson, M.
    et al.
    Äng, Björn
    Linder, J.
    Harms-Ringdahl, K.
    Neck muscle activity in helicopter pilots: effect of position and helmet-mounted equipment2003In: Aviation, Space and Environmental Medicine, ISSN 0095-6562, E-ISSN 1943-4448, Vol. 74, no 5, p. 527-32Article in journal (Refereed)
  • 25.
    Vixner, Linda
    Dalarna University, School of Education, Health and Social Studies, Medical Science. Karolinska Institutet.
    Manual and electroacupuncture for labour pain. Study design of a longitudinal randomized controlled trial2013Conference paper (Other academic)
    Abstract [en]

    Introduction: Results from previous acupuncture studies for labour pain are contradictory and lack important information on methodology. The sample sizes are in general small, information about the intervention such as needle placement, number of acupuncture points, type of stimulation, and duration of treatment, is often sparse or lacking However, studies indicate that acupuncture has a positive effect on women’s experiences of labour pain.

     

    Aim: The aim of the present study was to evaluate the efficacy of two different acupuncture stimulations, manual or electrical stimulation, compared with standard care in the relief of labour pain. Our hypothesis is that acupuncture with manual or electrical stimulation is more effective than standard care in the relief of labor pain, and that acupuncture with electrical stimulation is the most effective.

    Outcome measures: Primary outcome: Labour pain measured with visual analogue scale (VAS). Secondary outcomes are use of epidural analgesia, experience of relaxation, labour outcomes and infant outcomes. Biochemical markers of proinflammatory cytokines, memory of labour pain and overall childbirth experience.

    Methods: The study was designed as a randomized controlled trial based on Western medical theories. Nulliparous women with normal pregnancies admitted to the delivery ward after a spontaneous onset of labour were randomly allocated into one of three groups: manual acupuncture, electroacupuncture or standard care. Sample size calculation gave 101 women in each group, including a total of 303 women. VAS was used for assessing pain every 30 minutes for five hours and thereafter every hour until birth. Questionnaires were distributed before treatment, directly after the birth, and at one day and two months postpartum. Blood samples were collected before and after the first treatment.

    At the conference, information on the design of the study will be presented and the considerations of whether to use placebo controls or not will be discussed.

    ClinicalTrials.gov: NCT01197950

  • 26. Äng, Björn
    Impaired neck motor function and pronounced pain-related fear in helicopter pilots with neck pain - a clinical approach2008In: Journal of Electromyography & Kinesiology, ISSN 1050-6411, E-ISSN 1873-5711, Vol. 18, no 4, p. 538-49Article in journal (Refereed)
  • 27. Äng, Björn
    et al.
    Harms-Ringdahl, K.
    Neck pain and related disability in helicopter pilots: A survey of prevalence and risk factors2006In: Aviation, Space and Environmental Medicine, ISSN 0095-6562, E-ISSN 1943-4448, Vol. 77, no 7, p. 713-9Article in journal (Refereed)
  • 28. Äng, Björn
    et al.
    Kristoffersson, M.
    Neck muscle activity in fighter pilots wearing night-vision equipment during simulated flight2013In: Aviation, Space and Environmental Medicine, ISSN 0095-6562, E-ISSN 1943-4448, Vol. 84, no 2, p. 125-33Article in journal (Refereed)
  • 29. Äng, Björn
    et al.
    Linder, J.
    Harms-Ringdahl, K.
    Neck strength and myoelectric fatigue in fighter and helicopter pilots with a history of neck pain2005In: Aviation, Space and Environmental Medicine, ISSN 0095-6562, E-ISSN 1943-4448, Vol. 76, no 4, p. 375-80Article in journal (Refereed)
  • 30. Äng, Björn
    et al.
    Monnier, A.
    Harms-Ringdahl, K.
    Neck/shoulder exercise for neck pain in air force helicopter pilots: a randomized controlled trial2009In: Spine, ISSN 0362-2436, E-ISSN 1528-1159, Vol. 34, no 16, p. E544-51Article in journal (Refereed)
1 - 30 of 30
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