203 research outputs found
Letter to the Editor concerning "Vertebral rotation in adolescent idiopathic scoliosis calculated by radiograph and back surface analysis-based methods: correlation between the Raimondi method and rasterstereography".
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Answer to the Letter to the Editor of J. Padulo concerning: "Vertebral rotation in adolescent idiopathic scoliosis calculated by radiograph and back surface analysis-based methods: correlation between the Raimondi method and rasterstereography" by Mangone M, Raimondi P, Paoloni M, Pellanera S, Di Michele A, Di Renzo S, Vanadia M, Dimaggio M, Murgia M, Santilli V (2013) Eur Spine J 22:367-371. [Eur Spine J. 2013];
Answer to the second letter to the Editor of J. Padulo et al. concerning: "vertebral rotation in adolescent idiopathic scoliosis calculated by radiograph and back surface analysis-based methods: correlation between the Raimondi method and rasterstereography" by Mangone M, Raimondi P, Paoloni M, Pellanera S, Di MA, Di RS, Vanadia M, Dimaggio M, Murgia M, Santilli V (2013) Eur Spine J 22:367-371. [Eur Spine J. 2014];
Vertebral rotation in adolescent idiopathic scoliosis calculated by radiograph and back surface analysis-based methods: correlation between the Raimondi method and rasterstereography. Eur Spine J;22:2336-2337 : Statistical perspectives part II. [Eur Spine J. 2014];
Comment on
Vertebral rotation in adolescent idiopathic scoliosis calculated by radiograph and back surface analysis-based methods: correlation between the Raimondi method and rasterstereography. [Eur Spine J. 2013
Vertebral rotation in adolescent idiopathic scoliosis calculated by radiograph and back surface analysis-based methods: correlation between the Raimondi method and rasterstereography. Eur Spine J;22:2336-2337 : Statistical perspectives part II.
No full textComment in Answer to the second letter to the Editor of J. Padulo et al. concerning: "vertebral rotation in adolescent idiopathic scoliosis calculated by radiograph and back surface analysis-based methods: correlation between the Raimondi method and rasterstereography" by Mangone M, Raimondi P, Paoloni M, Pellanera S, Di MA, Di RS, Vanadia M, Dimaggio M, Murgia M, Santilli V (2013) Eur Spine J 22:367-371. [Eur Spine J. 2014]Comment on Answer to the Letter to the Editor of J. Padulo concerning: "Vertebral rotation in adolescent idiopathic scoliosis calculated by radiograph and back surface analysis-based methods: correlation between the Raimondi method and rasterstereography" by Mangone M, Raimondi P, Paoloni M, Pellanera S, Di Michele A, Di Renzo S, Vanadia M, Dimaggio M, Murgia M, Santilli V (2013) Eur Spine J 22:367-371. [Eur Spine J. 2013] Letter to the Editor concerning "Vertebral rotation in adolescent idiopathic scoliosis calculated by radiograph and back surface analysis-based methods: correlation between the Raimondi method and rasterstereography". [Eur Spine J. 2013
Metabolic cost of handcycling
No full textNowadays, race handbikes are built with lightweight materials and usually present an aerodynamic user-interface property. These features markedly affect the propulsion techniques, mechanical loading, mechanical efficiency and thus the metabolic cost (C). Then, the purpose of this study was to analyze the metabolic cost in disabled subjects during submaximal handcycling in an ecological condition. Ten disabled subjects (nine males and one female, age: 44.8±7.5 y, body mass: 62±11.8 kg, sport classes and lesion: four MH1 (two cervical lesion C6-C7; one polio; one pyramidal syndrome) four MH2 (four thoracic lesion Th1-Th8) one MH3 (lumbo-sacral plexus) and one WH1 (C6)) cycled at constant aerobic speeds (2.79 ÷ 8.42 m s-1) on a running track under metabolic measuring (K4b2 COSMED) with their own handbikes (bike weight: 16.9±3.1 kg, bike model: AP (Arm Power, recumbent seat). C was obtained from the ratio between steady state oxygen uptake (net VO2) and average speed. C during synchronous handcycling showed an exponential increase (y=0.4384e0.1642x R2=0.77) over the studied speeds (from 0.71 J.kg-1.m-1 to 1.86 J.kg-1.m-1). In brief, handcycling exercise presented higher C than Cycling (0.5 J.kg-1.m-1), which was expected because the exercise is performed with the arms. However, among other assisted locomotion types - crutch walking (7 J.kg-1.m-1) and wheelchair (2 J.kg-1.m-1) - it seems to be the most economic form. Future analysis on mechanical efficiency of handcycling can reveal the advantages of aerodynamic models in respect to the others
Low-cost match analysis of italian sixth and seventh division soccer refereeing.
No full textAt every level, soccer referees and their assistants perform a significant amount of physical activity while refereeing; therefore, they must evaluate and keep an adequate physical condition. The author described the outcome of a functional evaluation protocol on adult healthy sportsmen refereeing in the Italian sixth and seventh division. Results have been compared with others published in the literature and gathered by means of different protocols. Referees and assistant referees have been monitored during official matches by means of wrist global positioning system receivers-instead of commonly used imaging techniques-and heart rate monitors. Total match distances covered, distances covered at different clustered speeds, match average heart rate, and its proportion over significant values have been measured. To detect differences over the match, first and second half total distance, distances covered at speeds over significant values, heart rate, and its proportion over significant values have been measured separately. Both whole-match and between-halves results were similar to highest literature data. Italian sixth and seventh division soccer referees show adequate physical capabilities and can use inexpensive wrist global positioning system receivers and heart rate monitors to evaluate them
In vivo data non-invasive methods for vitiligo evaluation electron microscopy
No full textCore Messages: The extension and severity of vitiligo guide prognosis and help making therapeutic choices. However, in spite of attempts to standardise clinical judgment, wide variations exist both in assessment rules and interpretation of their use, making intra-and inter-observer variations unavoidable. Ultraviolet (UV)-light examination and UV photography remain useful tools for the assessment of Caucasoid patients. Non-invasive instruments that use reflectance spectroscopy provide a convenient and reproducible methodology for the study of vitiligo patients and their follow-up. Reflectance confocal microscopy provides microscopical informations in vivo about changes in achromic macules both in repig-mented areas after treatments and in clinically normal-appearing skin of vitiligo patients
Effect of Small-Sided Games and Repeated Shuffle Sprint Training on Physical Performance in Elite Handball Players
No full textThis study was designed to compare the effects of small-sided games (SSGs) and repeated shuffle sprint (RSS) training on repeated sprint ability (RSA) and countermovement jump (CMJ) tests performances of elite handball players. Eighteen highly trained players (24.8 ± 4.4 years) were assigned to either SSG or RSS group training protocols twice a week for 8 weeks. The SSG training consisted of 5 small-sided handball games with 3-a-side teams excluding goalkeepers. The RSS consisted of 2 sets of 14-17 of 20-m shuttle sprints and 9-m jump shots interspersed by 20-second recoveries. Before and after training, the following performance variables were assessed: speed on 10-m and 20-m sprint time, agility and RSA time, CMJ height, standing throw, and jump shot speed. Significant pre-to-post treatment improvements were found in all the assessed variables following both training protocols (multivariate analysis of variance, p ≤ 0.05). There was a significantly greater improvement on 10-m sprint, CMJ, and jump shooting, after the RSS in comparison with SSG training (+4.4% vs. +2.4%, +8.6% vs. +5.6%, and +5.5% vs. +2.7%, respectively). Conversely, agility and standing throwing showed lower improvements after RSS in comparison with SSG (+1.0% vs. +7.8% and +1.6% vs. +9.0%, respectively). These results indicate that these training methods are effective for fitness development among elite adult handball players during the last period of the competitive season. Specifically, SSG seems to be more effective in improving agility and standing throw, whereas RSS seems preferable in improving 10-m sprint, CMJ, and jump shot
Energy cost and mechanical efficiency of riding a human powered recumbent bicycle.
No full textWhen dealing with human-powered vehicles, it is important to quantify the capability of converting metabolic energy in useful mechanical work by measuring mechanical efficiency. In this study, net mechanical efficiency (η) of riding a recumbent bicycle on flat terrain and at constant speeds (v, 5.1-10.0 m/s) was calculated dividing mechanical work (w, J/m) by the corresponding energy cost (Cc, J/m). w and Cc increased linearly with the speed squared: w = 9.41 + 0.156 · v2; Cc = 39.40 + 0.563 · v2. η was equal to 0.257 ± 0.0245, i.e. identical to that of concentric muscular contraction. Hence, i) η seems unaffected by the biomechanical arrangement of the human-vehicle system; ii) the efficiency of transmission seems to be close to 100%, suggesting that the particular biomechanical arrangement does not impair the transformation of metabolic energy in mechanical work. When dealing with human-powered vehicles, it is important to quantify mechanical efficiency (η) of locomotion. η of riding a recumbent bicycle was calculated dividing the mechanical work to the corresponding energy cost of locomotion; it was practically identical to that of concentric muscular contraction (0.257 ± 0.0245), suggesting that the power transmission from muscles to pedals is unaffected by the biomechanical arrangement of the vehicle
ACHILLE ARDIGO' E I MIEI ANNI ALL'ISTITUTO LUIGI STURZO
No full textL'articolo è inserito in un volume che raccoglie saggi e testimonianze del contributo dato alla sociologia italiana da Achille Ardigò di cui ricostruiscono anche uno spaccato umano, sociale e politico
Phototherapeutic approach to dermatology patients during the 2019 coronavirus pandemic : real-life data from the Italian red zone
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