Search results for "Sports"

Course and Predictors of Pain and Physical Functioning in Patients with Hip Osteoarthritis: Systematic Review and Meta-Analysis

2016

Objective: To systematically summarize the literature on: (i) the course of pain and physical functioning; and (ii) predictors of deterioration of pain and physical functioning in patients with osteoarthritis of the hip. Methods: A literature search was conducted in PubMed, CINAHL, Embase, PsychINFO and SPORTDiscus up to July 2015. Meta-analyses and qualitative data syntheses were performed. Results: Eleven of the 15 included studies were of high quality. With regard to the course of pain and physical functioning, high heterogeneity was found across studies (I2 >71%) and within study populations (reflected by large standard deviations of change scores). Therefore, the course of pain and phy…

Specific distribution of cross-sectional area in each hamstring muscle of sprint runners and relationship between those and sprint performance

2018

The Influence of Contextual Aspects in Talent Development: Interaction Between Relative Age and Birthplace Effects in NBA-Drafted Players

2021

The aims of this study were two-fold: (1) to inspect separately for the relative age and birthplace effects for players selected in the National Basketball Association (NBA) draft; (2) to explore the interaction among these factors and analyse this interaction in players' career performance. The database was obtained from the official records of the players (n = 1,738), who were selected during the annual editions of the NBA Draft from 1990 to 2019. The participants' date of birth was analyzed according to the month of birth and divided into four quartiles. The place of birth was compared to the distribution of the general population' places of birth based on different communities' sizes. C…

The acute effects of different high-intensity conditioning activities on sprint performance differ between sprinters of different strength and power …

2021

The purpose of the present study was to examine the effect of different conditioning activities (CAs) on short-term increase in sprint performance. In twelve male sprinters (21.1+2.6 years, 100 m performance: 11.5+0.6 s) their body composition, half squat maximum strength, 100 m sprinting and countermovement jump performances were evaluated. The performance of a 50 m sprint (splits at 10 m, 30 m and 50 m) was evaluated before and 5, 10 and 15 min after four postactivation performance enhancement CAs on different occasions: [1] 3 sets x 4 s maximum isometric half squat (IHF), [2] 3 sets x 3 consecutive countermovement jumps (cCMJs), [3] 3 repetitions x 30 m overspeed sprinting (OVSP) and [4]…

I Symposium of Elite Performance in Combat Sports

2017

This report presents a summary of the I Symposium of Elite Performance in Combat Sports held in Madrid, May 27, 2017. The symposium, organized by the Faculty of Sport Sciences-INEF of the Polytechnic University of Madrid, aimed to bring science closer to practice. A panel of highly successful athletes involved in karate, fencing, and taekwondo shared their experiences. The speakers presented crucial topics for an optimal preparation and high level performance such as strength training, sport psychology, brain maturation, sports nutrition, competition planning, sport injuries, and perceptual-decision making training.

Probabilistic Evaluation of the Adaptation Time for Structures under Seismic Loads

2016

Abstract In this paper, a probabilistic approach for the evaluation of the adaptation time for elastic perfectly plastic frames is proposed. The considered load history acting on the structure is defined as a suitable combination of quasi-statical loads and seismic actions. The proposed approach utilizes the Monte Carlo method in order to generate a suitable large number of seismic acceleration histories and for each one the related load combination is defined. Furthermore, for each load combination the related adaptation time is determined, if any, as the optimal one for which the structure is able to shakedown under the unamplified applied actions. A known generalized Ceradini's theorem i…

Processus attentionnels et apprentissage moteur

2012

International audience; Le but de cet article est de synthétiser les travaux portant sur les effets de l’attention volontaire sur l’apprentissage d’une habileté motrice. Les premiers modèles d’apprentissage considèrent que l’apprenant franchit plusieurs étapes au cours desquelles la sollicitation des processus attentionnels diminue (Fitts & Posner, 1967). Ainsi, la réalisation d’un mouvement nécessiterait d’engager de l’attention en début d’apprentissage alors qu’elle serait automatique en fin d’apprentissage. Cet article propose de vérifier cette affirmation au regard des recherches récentes qui révèlent que l’apprenant débutant module volontairement son attention a fin d’optimiser la réal…

SIA "PHARM & MED" eksporta attīstības iespējas Vācijas tirgū

2019

Mūsdienās pasaule saskaras ar virkni ekonomisko, sociālo, kultūras, demogrāfisko, finansiālo un politisko pārmaiņu vilni, kas krasi ietekmē dzīvesveidu, patēriņa uzvedību un organizāciju vadības procesus. Pēc vietējā tirgus apgūšanas loģisks nākamais solis uzņēmējdarbībā ir eksporta uzsākšana. Lai īstenotu veiksmīgu ieiešanu starptautiskajā tirgū, nepieciešama precīza mārketinga vides analīzes izveide, kas sniedz iespēju uzņēmumam izvērtēt savu potenciālu iekļūšanai vēlamajā tirgū. Diplomdarba tēma ir “SIA “PHARM&MED” EKSPORTA ATTĪSTĪBAS IESPĒJAS VĀCIJAS TIRGŪ”, un tā mērķis ir veikt starptautiskās mārketinga vides izpēti un analīzi, lai spētu izdarīt secinājumus par SIA “Pharm & Med” iespē…

Pārtrenētības fizioloģisko rādītāju izvērtējums profesionāliem basketbolistiem

2015

Ievads. Lai sasniegtu augstākus rezultātus, katram sportistam ir nepieciešams sistemātiski pārvarēt tādas slodzes, kas lielākas par submaksimālām treniņu slodzēm. Ir zināms, ka pārslodze rada nogurumu un darbaspēju samazināšanos, tāpēc nepieciešama atbilstoša atpūta vai samazināta treniņu slodze. Fizisku slodžu, pārslodžu un atpūtas – atjaunošanās fāžu periodizācija un plānošana ievērojami paaugstina fiziskās darbaspējas. Savukārt, ja pārslodze kombinējas ar kādu citu stresa faktoru, atlētam var attīsties pārtrenētības sindroms. Mērķis. Izvērtēt pārtrenētībai raksturīgos fizioloģiskos rādītājus profesionāliem basketbola spēlētājiem un salīdzināt tos aktīvajā spēļu periodā un treniņu periodā…

Physical activity as a protective factor for dementia and Alzheimer’s disease: systematic review, meta-analysis and quality assessment of cohort and …

2022

ObjectivePhysical activity (PA) is associated with a decreased incidence of dementia, but much of the evidence comes from short follow-ups prone to reverse causation. This meta-analysis investigates the effect of study length on the association.DesignA systematic review and meta-analysis. Pooled effect sizes, dose–response analysis and funnel plots were used to synthesise the results.Data sourcesCINAHL (last search 19 October 2021), PsycInfo, Scopus, PubMed, Web of Science (21 October 2021) and SPORTDiscus (26 October 2021).Eligibility criteriaStudies of adults with a prospective follow-up of at least 1 year, a valid cognitive measure or cohort in mid-life at baseline and an estimate of the…