1,720,978 research outputs found
Cognitive, psychological and physical functioning in post COVID-19 patients with different levels of fatigue: a descriptive abstract
No full textBackground: Recent studies have shown that a growing number of mild COVID-19 cases experience prolonged symptoms, reporting a range of disabling symptoms such as fatigue, shortness of breath, cognitive impairment, memory loss, and mental health and employment issues up to months following the infection. This has recently been accounted for by the World Health Organization, which has defined post COVID-19 as a condition that usually occurs three months from the onset of COVID-19 with symptoms that last for at least 2 months and cannot be explained by an alternative diagnosis. A data-driven identification of subgroups of post COVID-19 could help in referring this clinically heterogeneous group of patients to the appropriate care. However, most of the evidence has been obtained through self-reported and retrospective surveys, lacking in-person monitoring and assessment of cognitive, physical, and …Voor extra info [email protected]
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
The development of shoulder pain in competitive swimmers
No full textAbstract: Shoulder pain is common across the lifespan of the competitive swimmer, often resulting in athletes leaving the sport or being severely restricted in performance. Yet despite the establishment of a high incidence, uncertainty remains regarding the cause of the swimmer\u2019s shoulder pain and there is still significant debate over the factors that contribute to its development. Even more so, epidemiological data going all the way back to the 1980\u2019s does not appear to show any reduction in shoulder injury burden. The lack of knowledge regarding its etiology and the clinical heterogeneity of the swimmers\u2019 shoulder has reduced the ability to define and devise successful interventions. Knowledge of its risk factors, however, may offer guidance in the development of such strategies but this requires a prospective evaluation of the characteristics that may potentially contribute to shoulder pain. Consequently, the main objective of our research was to identify predictors of swimmers\u2019 shoulder and develop and validate a multivariable prognostic model for the prediction of shoulder pain in swimmers. To complete this investigation, five concomitant studies were undertaken. The first two studies aimed to evaluate the evidence in the literature for factors associated with the swimmer\u2019s shoulder pain. Based on the findings we selected clinically relevant variables that were well-documented in the literature for inclusion in our prospective research protocol. The third and fourth study aimed to examine the reliability of the measurements for thoracic rotation range of motion and latissimus dorsi muscle flexibility that had yet to be established in a setting appropriate to the swimmer. These studies formed the platform for our main investigation, a longitudinal prospective research for the purposes of identifying predictors of shoulder pain. Our approach was to recruit 200 competitive swimmers between the ages of 10 and 40 years who trained for an average of at least four hours per week. We recruited swimmers in collaboration with the Flemish Swimming Federation. Swimmers who met the predefined criteria were considered eligible for inclusion in our prospective cohort study, and also recruited for the assessment of measurement reliability. The subjects had a comprehensive physical exam completed by the main investigator to measure demographic, psychosocial, musculoskeletal, training-related and biomechanical characteristics of interest at baseline and again after 6, 12, 18 and 24 months. Swimming volume was prospectively recorded by the swimming coach during the season. Further, a protocol for the measurement of thoracic spine rotation range of motion and latissimus dorsi muscle flexibility using a bubble-filled inclinometer was tested for reliability during baseline assessment. Excellent intra-rater reliability was found for both measurements conducted on young competitive swimmers (ICC thoracic rotation test 0.91-0.96; ICC latissimus dorsi test 0.91-0.94). Further, our prospective investigation confirmed a significant relationship between shoulder pain and regional level competitive swimming (OR 0.19, 95% CI 0.058-0.629); acute to chronic workload ratio (OR 4.89, 95% CI 1.00-18.54); posterior shoulder muscle endurance (OR .96, 95% CI 0.92-0.99) and hand entry position error (OR .37, 95% CI 0.155-0.906). Based on the results of our series of investigations we advise against large increases in swim-training volume, especially between successive training levels from the young to the adolescent competitive swimmer. We recommend year-round monitoring of both the swimmer\u2019s internal and external training load as well as implemented regular stroke assessment. Furthermore, dry-land exercises focusing on the endurance capacity of the posterior shoulder muscles appear warranted. Our prediction model showed good discriminative ability between swimmers at higher risk of shoulder pain and those who are not. It consists of parameters that can easily be measured in a swimming setting and that can aid in informing and facilitate counselling of swimmers at risk. We recommend external validation of our model prior to the development of clinical reasoning and treatment programs
Proprioception in patients with fibromyalgia and chronic fatigue syndrome: A systematic review
No full textBackground. Previous research found impairments in postural balance and interoception in individuals with fibromyalgia (FM) and chronic fatigue syndrome (CFS). Both constructs can be associated with proprioception, making the latter an interesting topic for further research. Moreover, an understanding of the extent and nature of proprioceptive impairments in FM and CFS is needed to identify target points for rehabilitation.
Objectives. To investigate the evidence for impairments in proprioception in individuals with FM and CFS and analyse differences with healthy controls.
Methods. Observational case-control studies that compared proprioception between patients with FM or CFS and healthy controls were selected (databases: PubMed, MEDLINE, and Web of Science). Six studies (n = 422 participants) met the criteria. Data were extracted for population characteristics, diagnostics, and proprioceptive outcome measures, including study results.
Results. All studies applied a limb or trunk repositioning task and reported the mean positioning error as the outcome of proprioceptive performance. FM patients showed impairments in trunk-related proprioception (p < .005), but not in knee, shoulder, or upper limb reposition sense compared to healthy controls.
Conclusion. Evidence suggests trunk-related impairments may be present and relevant to the frequently reported postural imbalances in this population. However, the overall body of evidence after applying the GRADE approach was very low and further research using higher quality designs and procedures would be needed to establish strong data-based conclusions. Until then, professionals should consider the assessment of trunk-related posture and proprioception when working with this population.
Key Words: Fibromyalgia, Chronic Fatigue Syndrome, proprioception, postural balance
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Proprioception in patients with fibromyalgia and chronic fatigue syndrome: A systematic review
No full textAims: Several researchers have evaluated proprioception in fibromyalgia (FM) and chronic fatigue syndrome (CFS) and analyzed the differences with healthy controls. However, the level of evidence these studies have yielded has yet to be critically assessed. The purpose of our systematic review was to investigate the published evidence for impairments in proprioception in people with FM and CFS and analyze differences with healthy controls.
Methods: Relevant studies were searched within PubMed, MEDLINE and Web of Science. Eligible trials included case-control studies that compared a defined construct of proprioception between objectively diagnosed patients with FM or CFS and healthy controls. The risk of bias of the included studies was checked using the JBI Critical Appraisal Checklist for Case Control Studies. Certainty of the evidence was assessed using the GRADE approach.
Results: Eight studies (N = 798 participants) met the criteria. Proprioception was evaluated based on the participant’s performance in estimating static position in space using lower body (n = 3), upper body- (n = 2) or trunk- and cervical related (n = 3) repositioning tasks. Studies consistently reported greater trunk and cervical repositioning errors in women with FM compared to healthy controls (P = < .005).
Conclusions: FM patients showed impairments in trunk- and cervical related proprioception, but not in lower- or upper limb reposition sense. Although the certainty of the evidence was low, evidence suggests trunk-related impairments may be relevant to the frequently reported postural imbalances in this population
Proprioception in patients with fibromyalgia and chronic fatigue syndrome: A systematic review
No full textAims: Several researchers have evaluated proprioception in fibromyalgia (FM) and chronic fatigue syndrome (CFS) and analyzed the differences with healthy controls. However, the level of evidence these studies have yielded has yet to be critically assessed. The purpose of our systematic review was to investigate the published evidence for impairments in proprioception in people with FM and CFS and analyze differences with healthy controls.
Methods: Relevant studies were searched within PubMed, MEDLINE and Web of Science. Eligible trials included case-control studies that compared a defined construct of proprioception between objectively diagnosed patients with FM or CFS and healthy controls. The risk of bias of the included studies was checked using the JBI Critical Appraisal Checklist for Case Control Studies. Certainty of the evidence was assessed using the GRADE approach.
Results: Eight studies (N = 798 participants) met the criteria. Proprioception was evaluated based on the participant’s performance in estimating static position in space using lower body (n = 3), upper body- (n = 2) or trunk- and cervical related (n = 3) repositioning tasks. Studies consistently reported greater trunk and cervical repositioning errors in women with FM compared to healthy controls (P = < .005).
Conclusions: FM patients showed impairments in trunk- and cervical related proprioception, but not in lower- or upper limb reposition sense. Although the certainty of the evidence was low, evidence suggests trunk-related impairments may be relevant to the frequently reported postural imbalances in this population
Proprioception in patients with fibromyalgia and chronic fatigue syndrome: A systematic review
No full textBackground. Previous research found impairments in postural balance and interoception in individuals with fibromyalgia (FM) and chronic fatigue syndrome (CFS). Both constructs can be associated with proprioception, making the latter an interesting topic for further research. Moreover, an understanding of the extent and nature of proprioceptive impairments in FM and CFS is needed to identify target points for rehabilitation.
Objectives. To investigate the evidence for impairments in proprioception in individuals with FM and CFS and analyse differences with healthy controls.
Methods. Observational case-control studies that compared proprioception between patients with FM or CFS and healthy controls were selected (databases: PubMed, MEDLINE, and Web of Science). Six studies (n = 422 participants) met the criteria. Data were extracted for population characteristics, diagnostics, and proprioceptive outcome measures, including study results.
Results. All studies applied a limb or trunk repositioning task and reported the mean positioning error as the outcome of proprioceptive performance. FM patients showed impairments in trunk-related proprioception (p < .005), but not in knee, shoulder, or upper limb reposition sense compared to healthy controls.
Conclusion. Evidence suggests trunk-related impairments may be present and relevant to the frequently reported postural imbalances in this population. However, the overall body of evidence after applying the GRADE approach was very low and further research using higher quality designs and procedures would be needed to establish strong data-based conclusions. Until then, professionals should consider the assessment of trunk-related posture and proprioception when working with this population.
Key Words: Fibromyalgia, Chronic Fatigue Syndrome, proprioception, postural balance
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