Search results for "Viti"
showing 10 items of 4520 documents
Velocity-based resistance training: do women need greater velocity loss to maximize adaptations?
2021
Abstract Purpose Men and women typically display different neuromuscular characteristics, force–velocity relationships, and differing strength deficit (upper vs. lower body). Thus, it is not clear how previous recommendations for training with velocity-loss resistance training based on data in men will apply to women. This study examined the inter-sex differences in neuromuscular adaptations using 20% and 40% velocity-loss protocols in back squat and bench press exercises. Methods The present study employed an 8-week intervention (2 × week) comparing 20% vs. 40% velocity-loss resistance training in the back squat and bench press exercises in young men and women (~ 26 years). Maximum strengt…
Valorization of Side Stream Products from Sea Cage Fattened Bluefin Tuna (Thunnus thynnus): Production and In Vitro Bioactivity Evaluation of Enriche…
2022
The valorization of side streams from fishery and aquaculture value-chains is a valuable solution to address one of the challenges of the circular economy: turning wastes into profit. Side streams produced after filleting of sea cage fattened bluefin tuna (Thunnus thynnus) were analyzed for proximate composition and fatty acid profile to evaluate the possibility of producing tuna oil (TO) as a valuable source of ω-3 polyunsaturated fatty acids (PUFA) and testing its bioactivity in vitro. Ethyl esters of total fatty acids (TFA), obtained from TO, were pre-enriched by urea complexation (PUFA-Ue) and then enriched by short path distillation (SPD) up to almost 85% of the PUFA fraction (PU…
La influencia del estado del partido en la posesión del balón en el fútbol femenino de alto rendimiento
2020
[Abstract] The objective of this study was to examine the effect of the situational match status variable on the ball possession of the teams that participated in the 2015 FIFA Women’s World Cup. The 52 games played during the championship have been collected, and 3,740 ball possessions made by the teams were analyzed. The teams have been divided into successful and unsuccessful. Three types of analysis have been carried out: a univariate analysis for both groups with the categorical and continuous variables selected; a bivariate analysis, using chi-square tests and the exact Fischer test; and finally, a multivariable technique such as the decision trees was incorporated. The available resu…
Changes in biomechanics of skiing at maximal velocity caused by simulated 20 km skiing race using V2 skating technique
2018
This study investigated how the fatigue caused by a 20-km simulated skating cross-country skiing race on snow affects the final spurt performance from a biomechanical perspective. Subjects performed a 100-m maximal skiing trial before and at the end of the simulated race. Cycle characteristics, ground reaction forces from skis and poles, and muscle activity from eight muscles were recorded during each trial. Results showed that subjects were in a fatigued state after the simulated race manifested by 11.6% lower skiing speed (P<.01). The lower skiing speed was related to an 8.0% decrease in cycle rate (P<.01), whereas cycle length was slightly decreased (tendency). In temporal patterns, rela…
Accumulation of sleep loss among shift-working truck drivers
2021
Sleep loss is known to contribute to road traffic accidents. Professional drivers are vulnerable to curtailment of sleep due to long driving bouts and shift work. To fill in the gap in the literature related to the buildup of sleep loss in irregular shift systems, we recorded the sleep and working hours of 47 shift-working long-haul truck drivers during a two-week period. Sleep (time in bed) was verified by actigraphy and sleep logs. Sleepiness was measured using the Karolinska Sleepiness Scale (KSS). Individual sleep need was based on self-assessments. We examined the accumulated sleep versus self-reported sleep need across the study period, using midnights as points of observation, and th…
Social engagement from childhood to middle age and the effect of childhood socio-economic status on middle age social engagement: results from the Na…
2016
ABSTRACTSocial engagement has powerful effects on wellbeing, but variation in individual engagement throughout the lifecourse is wide. The trajectories may differ by gender and be affected by socio-economic status (SES). However, long-term development of social engagement is little studied and the effect of childhood SES on later-life social engagement remains obscure. We aimed to describe the social engagement development from childhood to middle age by gender and test the effect of childhood SES on middle age social engagement. Data (N=16,440, 51.3% male) are drawn from the on-going National Child Development Study, following British babies born in 1958. Social engagement was measured by …
Sociālā tīkla „Facebook” uzdevumi mājasdarbu izpildes sekmēšanai angļu valodas stundās 7. klasē
2015
Diplomdarba autores pieredze liecina, ka ļoti bieži daudzi skolēni neizpilda mājasdarbus, aizmirst tos izpildīt, vai arī skolotājam ir nepieciešams atgādināt, lai mājasdarbs tiktu veikts. Iekļaujot mācību procesā uz internetu balstītas aktivitātes skolēniem, kuri ir digitālās paaudzes pārstāvji, var būt motivējoša metodoloģijas sastāvdaļa. Darba mērķis ir atklāt, kā sociālā tīkla Facebook uzdevumi var palīdzēt veicināt mājasdarbu izpildi 7. klasē. Izvēlētā pētījuma metode ir atsevišķa gadījuma pētījums Rīgas Valsts 3.ģimnāzijā. Datu vākšanas metodes bija 2 anketas 7. klases skolēniem, skolotājas pieraksti ar mājasdarbu nodošanas laiku un biežumu, atgriezeniskās saites veidlapas un intervija…
Health Promotion Interventions in Sports Clubs: Can We Talk About a Setting-Based Approach? A Systematic Mapping Review
2019
Many researchers and authorities have recognized the important role that sports clubs can play in public health. In spite of attempts to create a theoretical framework in the early 2000s, a thorough understanding of sports clubs as a setting for health promotion (HP) is lacking. Despite calls for more effective, sustainable, and theoretically grounded interventions, previous literature reviews have identified no controlled studies assessing HP interventions in sports clubs. This systematic mapping review details how the settings-based approach is applied through HP interventions in sports clubs and highlights facilitators and barriers for sports clubs to become health-promoting settings. In…
Applying the RUSLE and ISUM in the Tierra de Barros Vineyards (Extremadura, Spain) to Estimate Soil Mobilisation Rates
2020
Spain is one of the largest wine producers in the world, with Extremadura (south-west Spain) being its second-largest producing region after Castilla La Mancha. Within Extremadura, the most traditional and productive viticulture region is the Tierra de Barros, which boasts an annual production of 3×
Impact des modes de production économes en pesticides de synthèse sur la qualité microbiologique des sols viticoles
2022
La viticulture est un secteur d‘activité agricole stratégique pour la France carelle représente le 1er poste exportateur du secteur agroalimentaire pourseulement 3% de la SAU Française. Toutefois, elle est aussi une forteconsommatrice de produits phytosanitaires avec 20% des pesticides utilisés enFrance à elle seule, couplé aussi a une forte mécanisation. Tout ceci entraîne unedégradation de la qualité des sols, qu’elle soit physique (Quiquerez et al., 2008),ou biologique (Dequiedt et al., 2011). Une baisse importante de la biodiversitédu sol altère ses grandes fonctions d’intérêts telles que la décomposition de lamatière organique et la fourniture d’éléments minéraux, l’effet barrière auxp…