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Cattolica Eraclea, Italy

Leow M.Q.H.,Biomechanics Laboratory | Chan S.W.C.,University of New South Wales
Palliative and Supportive Care | Year: 2016

Objective:: Our aim was to evaluate caregivers' perceptions of a video, telephone follow-up, and online forum as components of a psychoeducational intervention. Method:: Qualitative semistructured face-to-face interviews were conducted with 12 participants two weeks post-intervention. The study was conducted from September of 2012 to May of 2015. Family caregivers were recruited from four home hospice organizations (HCA Hospice Care, Metta Hospice, Singapore Cancer Centre, and Agape Methodist Hospice) and the National Cancer Centre outpatient clinic in Singapore. A purposive sample was employed, and participants were recruited until data saturation. Qualitative interviews were transcribed verbatim. Transcripts were coded and analyzed using content analysis. Two of the research team members were involved in the data analysis. Results:: Two-thirds of participants were females (n = 8). Their ages ranged from 22 to 67 (mean = 50.50, SD = 11.53). About two-thirds were married (n = 7). Most participants were caring for a parent (n = 10), one for a spouse, and one for her mother-in-law. Caregivers favored the use of video for delivery of educational information. They liked the visual and audio aspects of the video. The ability to identify with the caregiver and scenarios in the video helped in the learning process. They appreciated telephone follow-ups from healthcare professionals for informational and emotional support. The online forum as a platform for sharing of information and provision of support was not received well by the caregivers in this study. The reasons for this included their being busy, not being computer savvy, rarely surfing the internet, and not feeling comfortable sharing with strangers on an online platform. Significance of Results:: This study provided insight into caregivers' perceptions of various components of a psychoeducational intervention. It also gave us a better understanding of how future psychoeducational interventions and support for caregivers of persons with advanced cancer could be provided. Copyright © Cambridge University Press 2016 Source

Casamichana D.,University of the Basque Country | Castellano J.,University of the Basque Country | Castagna C.,Biomechanics Laboratory
Journal of Strength and Conditioning Research | Year: 2012

This study compared the physical demands of friendly matches (FMs) and small-sided games (SGs) in semiprofessional soccer players by means of global positioning system technology. Twenty-seven semiprofessional soccer players were monitored during 7 FMs and 9 sessions involving different SGs. Their physical profile was described on the basis of 20 variables related to distances and frequencies at different running speeds, the number of accelerations, and through global indicators of workload such as the work:rest ratio, player workload, and the exertion index. Results showed significant differences (p<0.01) between SGs and FMs for the following variables: overall workload (SG > FM); the distribution of the distance covered in the speed zones 7.0-12.9 km·h -1 (SG > FM) and .21 km·h -1 (FM > SG); the distribution of time spent in certain speed zones (FM > SG: 0.0-6.9 and >21 km·h -1; FM > SG: 7.0-12.9 km·h -1). More sprints per hour of play were performed during FMs, with greater mean durations and distances, greater maximum durations and distances, and a greater frequency per hour of play for sprints of 10-40 and >.40 m (p < 0.01). The frequency of repeated high-intensity efforts was higher during FM (p < 0.01). The results show that coaches and strength and conditioning professionals should consider FMs during their training routine to foster specific adaptations in the domain of high-intensity effort. © 2012 National Strength and Conditioning Association. Source

Grabowski A.M.,Massachusetts Institute of Technology | McGowan C.P.,University of Texas at Austin | McDermott W.J.,Biomechanics Laboratory | Beale M.T.,University of Colorado at Boulder | And 2 more authors.
Biology Letters | Year: 2010

Running-specific prostheses (RSP) emulate the spring-like behaviour of biological limbs during human running, but little research has examined the mechanical means by which amputees achieve top speeds. To better understand the biomechanical effects of RSP during sprinting, we measured ground reaction forces (GRF) and stride kinematics of elite unilateral trans-tibial amputee sprinters across a range of speeds including top speed. Unilateral amputees are ideal subjects because each amputee's affected leg (AL) can be compared with their unaffected leg (UL). We found that stance average vertical GRF were approximately 9 per cent less for the AL compared with the UL across a range of speeds including top speed (p < 0.0001). In contrast, leg swing times were not significantly different between legs at any speed (p = 0.32). Additionally, AL and UL leg swing times were similar to those reported for non-amputee sprinters. We infer that RSP impair force generation and thus probably limit top speed. Some elite unilateral trans-tibial amputee sprinters appear to have learned or trained to compensate for AL force impairment by swinging both legs rapidly. © 2009 The Royal Society. Source

Girasis C.,Erasmus University Rotterdam | Schuurbiers J.C.H.,Erasmus University Rotterdam | Onuma Y.,Erasmus University Rotterdam | Serruys P.W.,Erasmus University Rotterdam | And 2 more authors.
Catheterization and Cardiovascular Interventions | Year: 2011

Background: Validation is lacking for two- and three-dimensional (2D and 3D) bifurcation quantitative coronary angiography (QCA) algorithms. Methods: Six plexiglas phantoms were designed, each of them mimicking a coronary vessel with three successive bifurcations lesions, wherein at least one vessel segment had a percent diameter stenosis (DS) of ≥60%. The five most frequently occurring Medina classes (1,1,1), (1,1,0), (0,1,0), (0,1,1), and (1,0,0) were used in the design. Diameters of the daughter vessels in every bifurcation were dictated by the scaling law of Finet. Lesions were cosinus-shaped in longitudinal view and circular-shaped in cross-sectional view. At the level of the carina, lesions were becoming eccentric, favoring "plaque" at the outer bifurcation walls. Adjacent bifurcation lesions were kept distant by nontapering, stenosis-free segments of ≥10 mm length. The direction of the side branch relative to the main vessel was based on relevant literature. The phantoms were precision manufactured using computer-aided design and machining techniques. Because of the high drilling accuracy (within 10 μm), the 3D luminal surface description of the phantom could be used to determine the true lumen dimensions and bifurcation angle (BA) values of the final geometry. Results: Our series of bifurcation phantoms comprised 33 narrowed and 21 stenosis-free vessel segments with a mean true minimal lumen diameter (MLD) value of 0.98 ± 0.40 mm (range, 0.53-1.96 mm) and 2.29 ± 0.74 mm (range, 1.40-4.00 mm), respectively. Overall, the mean true values for MLD, reference diameter, and DS were 1.49 ± 0.85 mm, 2.70 ± 0.71 mm, and 40.9% ± 34.2%. The mean true values for the proximal and the distal BA were 123.6° ± 19.0° and 69.6° ± 19.9°, respectively. Conclusions: Six plexiglas phantoms containing a total of 18 bifurcations lesions with variable anatomy and Medina class were designed and precision manufactured to facilitate the validation of bifurcation QCA algorithms. © 2010 Wiley-Liss, Inc. Source

Chanlalit C.,Bangkok University | Chanlalit C.,Biomechanics Laboratory | Fitzsimmons J.S.,Biomechanics Laboratory | Shukla D.R.,Biomechanics Laboratory | And 2 more authors.
Journal of Shoulder and Elbow Surgery | Year: 2011

Background: Initial stability of a textured surface prosthetic stem is necessary for bone in-growth. Surfaces currently used for radial head prostheses include titanium plasma spray and grit-blasted titanium. Hypothesis: Plasma spray radial head prosthetic stems are less dependent than grit-blasted stems on a tight press fit. Good initial press-fit stability, with acceptable micro-motion, can be achieved with a greater range of stem sizes using a plasma spray than grit-blasted surface. Methods: Paired cadaveric radii were implanted with plasma spray or grit-blasted radial head prosthetic stems. Micromotion at the stem tip was measured under circumstances simulating eccentric loads. Results: Micromotion in the plasma spray (PS) stems (49 ± 37) μm was not better than that in the grit-blasted (GB) stems (28 ± 10) μm (P = .13). Micromotion of less than 100 μm was measured in all 12 GB stems that were maximum or 1 mm less than maximum size, versus 5/6, and 4/6 PS stems, respectively. Discussion: Micromotion in plasma spray prosthetic radial head stems was not better than that seen in grit-blasted stems, contrary to our initial hypothesis. Conclusion: Grit-blasted prosthetic radial head stems confer initial press-fit stability that is as good as, or slightly better than, corresponding plasma spray stems. Acceptable amounts of micromotion can be achieved with 2 grit-blasted stem sizes and probably with 2 plasma spray stem sizes. © 2011 Journal of Shoulder and Elbow Surgery Board of Trustees. Source

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