Search results for "grafi"
showing 10 items of 5213 documents
Individual Region- and Muscle-specific Hamstring Activity at Different Running Speeds
2019
Introduction \ud Hamstring strain injuries typically occur in the proximal biceps femoris long head (BFlh) at high running speeds. Strain magnitude seems to be the primary determinant of strain injury, and may be regulated by muscle activation. In running, BFlh strain is largest in the proximal region, especially at high speeds. However, region-specific activity has not been examined. This study examined the proximal–distal and intermuscular activity of BFlh and semitendinosus (ST) as a function of increasing running speed.\ud \ud Methods \ud Thirteen participants ran at steady speeds of 4.1 (slow), 5.4 (moderate), and 6.8 m·s−1 (fast) on a treadmill. Region- and muscle-specific EMG activit…
High-density electromyography activity in various hamstring exercises
2019
Proximal-distal differences in muscle activity are rarely considered when defining the activity level of hamstring muscles. The aim of this study was to determine the inter-muscular and proximal-distal electromyography (EMG) activity patterns of hamstring muscles during common hamstring exercises. Nineteen amateur athletes without a history of hamstring injury performed 9 exercises, while EMG activity was recorded along the biceps femoris long head (BFlh) and semitendinosus (ST) muscles using 15-channel high-density electromyography (HD-EMG) electrodes. EMG activity levels normalized to those of a maximal voluntary isometric contraction (%MVIC) were determined for the eccentric and concentr…
Patient education in physiotherapy in total hip arthroplasty (THA) - The perspective of physiotherapists
2018
Background and Purpose There is limited knowledge about patients’ and physiotherapists’ perceptions of patient education in physiotherapy in hip arthroplasty. The aim of this study was to describe physiotherapists’ conceptions of the patient education in physiotherapy needed by patients undergoing total hip arthroplasty. Methods The data for this qualitative study were collected using group and individual semi-structured interviews. Seven physiotherapists were interviewed. The research data were analyzed using a phenomenographic method. Results Three categories of patient education in physiotherapy in hip arthroplasty were produced and the categories formed a hierarchy. The narrowest descri…
Reliability of upper-limb diaphyseal mineral and soft-tissue measurements using peripheral quantitative computed tomography (pQCT)
2018
Objectives: To quantify between-day reliability of upper-body diaphyseal measurements (radius, ulna, humerus) using peripheral Quantitative Computed Tomography (pQCT). - Methods: Fourteen males (age: 25.8±2.3 years,) underwent repeat pQCT scans (one to two days apart) at mid-shaft ulna (60%), mid-shaft radius (60%) and mid-shaft humerus (50%) cross-sections of the non-dominant limb. Intraclass correlation coefficients (ICC) and coefficients of variation (CV) were determined for musculoskeletal morphology variables. - Results: Reliability was excellent (ICC: 0.76–0.99; CV: 1.3– 7.3) at all sites for bone mass, stress-strain index, endocortical and pericortical radius, endocortical volumetric…
Phase information of time-frequency transforms as a key feature for classification of atrial fibrillation episodes
2015
[EN] Patients suffering from atrial fibrillation can be classified into different subtypes, according to the temporal pattern of the arrhythmia and its recurrence. Nowadays, clinicians cannot differentiate a priori between the different subtypes, and patient classification is done afterwards, when its clinical course is available. In this paper we present a comparison of classification performances when differentiating paroxysmal and persistent atrial fibrillation episodes by means of support vector machines. We analyze short surface electrocardiogram recordings by extracting modulus and phase features from several time-frequency transforms: short-time Fourier transform, Wigner-Ville, Choi-…
Neuromuscular Adaptations to Short-Term High-Intensity Interval Training in Female Ice-Hockey Players
2019
Kinnunen, J-V, Piitulainen, H, and Piirainen, JM. Neuromuscular adaptations to short-term high-intensity interval training in female ice-hockey players. J Strength Cond Res 33(2): 479-485, 2019-High-intensity interval training (HIIT)-related neuromuscular adaptations, changes in force production, and on-ice performance were investigated in female ice-hockey players during preseason. Fourteen Finnish championship level ice-hockey players (average age 22 ± 3 years) participated in 2½-week HIIT. Both spinal (H-reflex) and supraspinal (V-wave) neuromuscular responses of the soleus muscle were recorded before and after the training period. Static jump (SJ) and countermovement jump heights, plant…
Gully erosion susceptibility assessment by means of GIS-based logistic regression: A case of Sicily (Italy)
2014
article i nfo Article history: This research aims at characterizing susceptibility conditions to gully erosion by means of GIS and multivariate statistical analysis. The study area is a 9.5 km 2 river catchment in central-northern Sicily, where agriculture ac- tivities are limited by intense erosion. By means of field surveys and interpretation of aerial images, we prepared a digitalmap of thespatial distribution of 260 gulliesinthestudy area.Inaddition,fromavailable thematicmaps, a 5 m cell size digital elevation model and field checks, we derived 27 environmental attributes that describe the variability of lithology, land use, topography and road position. These attributes were selected f…
FOREWORD a Musicologie sans frontières/Muzikologija bez granice/Musicology without frontiers. Essays in Honour of Stanislav Tuksar
2010
La vita e l'opera di Stanislav Tuksar e il suo contributo alla musicologia internazionale. In particolare gli studi di estetica della musica e di storiografia, nonché il suo lavoro di editor della "International Review of the Aesthetics and Sociology of Music" e i saggi importanti sul rapporto tra le culture nazionali e il cosmopolitismo nell'Europa centrale, in relazione alla Croazia e agli Slavi del Sud dal sedicesimo al diciannovesimo secolo.
Indagine termografica degli affreschi nella Chiesa di Santa Maria della Catena a Palermo
2009
Il testo descrive l’applicazione sperimentale di una nuova metodologia analitica diagnostica basata sullo svolgimento sinergico del rilevamento fotogrammetrico e dell'indagine termografica delle superfici architettoniche. La ricerca si pone l'obiettivo di caratterizzare lo stato di conservazione degli affreschi all’interno della Cappella Maggiore nella Chiesa di Santa Maria della Catena a Palermo attraverso l'elaborazione della diagnosi che risulti specifica per la redazione del progetto di conservazione e la direzione del relativo cantiere d’intervento. L'applicazione scientifica è svolta nell'ambito della sperimentazione della nuova Metodologia T.R.U.E. e del relativo software.
Indagine termografica dell'affresco di Diana nel Palazzo Comitini a Palermo
2009
Il testo descrive l’applicazione sperimentale di una nuova metodologia analitica diagnostica basata sullo svolgimento sinergico del rilevamento fotogrammetrico e dell'indagine termografica delle superfici architettoniche. La ricerca si pone l'obiettivo di caratterizzare lo stato di conservazione degli affreschi del Palazzo Comitini a Palermo attraverso l'elaborazione della diagnosi che risulti specifica per la redazione del progetto di conservazione e la direzione del relativo cantiere di restauro. L'applicazione scientifica è svolta inoltre nell'ambito della sperimentazione della nuova metodologia e del software T.R.U.E..