1,720,966 research outputs found
OUTDOOR GAIT ANALYSIS USING INERTIAL AND MAGNETIC SENSORS: PART 1 - PROTOCOL DESCRIPTION
No full textOutdoor gait analysis using inertial and magnetic sensors: Part 2 - preliminary validation
No full textOutwalk: a protocol for ubiquitous gait analysis. A case study on children with cerebral palsy
No full textInter-operator reliability and prediction bands of a novel protocol to measure the coordinated movements of shoulder-girdle and humerus in clinical setting
No full textA clinical motion analysis protocol was developed to measure the coordinated movements of shoulder-girdle and humerus (girdle-humeral rhythm-GD-H-R) during humerus flexion-extension (HFE) and ab-adduction (HAA), through an optoelectronic system. In particular, the protocol describes the GD-H-R with 2 angle-angle plots for each movement: girdle elevation-depression and protraction-retraction vs HFE, and vs HAA. Each of these plots is further divided in two subplots, one for the upward and one for the downward phases of the movement. By involving 11 participants and 2 operators, we measured the protocol's inter-operator reliability which ranged from very-good to excellent depending on the angle-angle plot (median values of the inter-operator coefficient of multiple correlation for the angle-angle plots higher than 0.94). We then computed the subjects' average control patterns, together with statistically meaningful prediction bands. +/-1SD confidence bands were also computed and their width ranged from +/-0.5 degrees to +/-4.6 degrees . Based on these results we could conclude that the method is robust and able to identify even limited differences in the GD-H-R
Assessment of anatomical and reverse total shoulder arthroplasty with the scapula-weighted Constant-Murley score
No full textAim of the study: To evaluate total (TSA) and reverse total shoulder arthroplasty (RTSA) using the Constant-Murley score (CMS) and the scapula-weighted (SW) CMS, an integrated outcome measure that takes into account the compensatory movements of the scapula. Methods: Twenty-five consecutive patients, 12 with TSA and 13 with RTSA, underwent kinematic analysis before and after shoulder replacement. Measurements included flexion (FLEX) and abduction (ABD) for the humerus and Protraction-Retraction (PR-RE), Medio-Lateral rotation (ME-LA), and Posterior-Anterior tilting (P-A) for the scapula. They were recorded at baseline (T0) and at six (T1) and 12 months (T2). Reference data were obtained from 31 control shoulders. Results: At T1, differences in CMS and SW-CMS were not significant in either group, whereas values at T2 were significantly lower in RTSA patients (p = 0.310 and p = 0.327, respectively). In TSA shoulders, the compensatory scapular movements in FLEX were all reduced from T0 to T2, whereas P-A was increased in ABD. In RTSA patients, the compensatory scapular movements in FLEX showed a general reduction at T1, with an increase in P-A at T2, whereas in ABD, all increased at T1 and decreased at T2 except for P-A, which did not decrease. Discussion: The SW-CMS showed that the physiological scapulothoracic motion was not restored in TSA and RTSA patients; it may be used as a reference for the gradual progression of deltoid and scapular muscle rehabilitation. Conclusions: The worse CMS and SW-CMS scores found in RTSA patients at six months may be due to the biomechanics of the reverse prosthesis and to the weakness of deltoid and periscapular muscles
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
'Outwalk': a protocol for clinical gait analysis based on inertial and magnetic sensors
No full textA protocol named Outwalk was developed to easily measure the thorax-pelvis and lower-limb 3D kinematics on children with cerebral palsy (CP) and amputees during gait in free-living conditions, by means of an Inertial and Magnetic Measurement System (IMMS). Outwalk defines the anatomical/functional coordinate systems (CS) for each body segment through three steps: (1) positioning the sensing units (SUs) of the IMMS on the subjects' thorax, pelvis, thighs, shanks and feet, following simple rules; (2) computing the orientation of the mean flexion-extension axis of the knees; (3) measuring the SUs' orientation while the subject's body is oriented in a predefined posture, either upright or supine. If the supine posture is chosen, e.g. when spasticity does not allow to maintain the upright posture, hips and knees static flexion angles must be measured through a standard goniometer and input into the equations that define Outwalk anatomical CSs. In order to test for the inter-rater measurement reliability of these angles, a study was carried out involving nine healthy children (7.9 +/- 2 years old) and two physical therapists as raters. Results showed RMS error of 1.4 degrees and 1.8 degrees and a negligible worst-case standard error of measurement of 2.0 degrees and 2.5 degrees for hip and knee angles, respectively. Results were thus smaller than those reported for the same measures when performed through an optoelectronic system with the CAST protocol and support the beginning of clinical trials of Outwalk with children with CP
Epidemiology of Injuries in Wheelchair Basketball: Trauma Versus Overuse Mechanism and Prevention Rehabilitative Strategies
No full textIntroductionWheelchair basketball (WB) is one of the most practiced sports among people with disabilities worldwide. There is a lack of data in scientific literature about injuries in sports for disabled people compared with able-bodied sports. The aim of this study is to investigate the epidemiology of injuries in professional WB athletes in an Italian cohort, distinguishing between trauma and overuse lesions and discussing the role of rehabilitation to prevent them.Materials and MethodsThe design is that of a cross-sectional study. An online survey was distributed to a group of Italian WB athletes competing in the first and second division of FIPIC (Wheelchair Basketball Italian Federation). The survey included demographic data, medical diagnoses, and athletes' injuries history. The sample size consisted of 104 players.ResultsForty-six injuries were reported. Of these, 32/46 (69.6%) were traumatic injuries and 14/46 (30.4%) were overuse injuries. The incidence of tendinopathies and fractures was significantly higher than for other injuries (P < 0.0001). Right shoulder (P < 0.0001), right hand (P = 0.002), and left hand (P = 0.041) injuries incidence was higher than any other injury in a statistically significant manner. The traumatic injuries group had a statistically significant difference in terms of days of suspension from sport activities compared with overuse injuries group (traumatic: median, 30; interquartile range [IQR], 14.5-40.0; range, 1-730 vs. overuse: median, 20.5; IQR, 10-21; range, 1-30; P = 0.006).ConclusionsTrauma injuries are more common than overuse injuries. Injury prevention strategies should be based on rethinking protection devices technologies and integrating sport activities into a tailored rehabilitation global project that considers each athlete's functional impairment and needs
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
- …
