Search results for "stance"
showing 10 items of 7708 documents
Mediating effects of motor performance, cardiorespiratory fitness, physical activity, and sedentary behaviour on the associations of adiposity and ot…
2018
We investigated the associations of cardiometabolic risk factors with academic achievement and whether motor performance, cardiorespiratory fitness, physical activity, or sedentary behaviour mediated these associations. Altogether 175 children 6-8 years-of-age participated in the study. We assessed body fat percentage (BF%), waist circumference, insulin, glucose, triglycerides, HDL cholesterol, and systolic and diastolic blood pressure, leptin, alanine aminotransferase, and gamma-glutamyltransferase (GGT). Reading fluency, reading comprehension, and arithmetic skills were assessed using standardized tests. Speed/agility, balance, and manual dexterity test results were used to calculate moto…
The Role of the Learning Styles in Blended Learning
2015
Education that is in line with the blended model and carried out with the help of videos enables, above all, flexible participation in study. Various participation modes enabled by video are suitable for different kinds of learners. The interaction when study ing with videos differs from that in face-to-face teaching. Among other things, videos allow pauses in study and enable study in peace. This study examines the role of various learning preferences, so-called learning styles, in blended learning. The study is based on a learning style mapping made for students and on data collected over several years about their study participation styles in education that is in accordance with the blen…
Onko etäkoulu mahdollinen?
2022
Tässä katsauksessa kysyn ”onko etäkoulu mahdollinen?” Haen kysymykseen vastauksia kommentoivan narratiivisen kirjallisuuskatsauksen keinoin. Tavoitteenani on tehdä näkyväksi sitä, mitä kaikkea koulu on – ei arvostella koronapandemian aikaisten poikkeavien opetusjärjestelyjen toteuttamista tai idealisoida lähitoteutuksena järjestettävää perusopetusta. Katsaus rakentuu neljän teeman ympärille: 1) koulu on opettamista ja oppimista; 2) koulu on yhteiskunnallista uusintamista ja uudistamista; 3) koulu on ihmisiä ja suhteita ja 4) koulu on paikka ja tila.
O2-Loading Treatment of Ge-Doped Silica Fibers: A Radiation Hardening Process
2016
International audience; The effects of a high-pressure O2-loading treatment on the radiation response of Ge-doped optical fibers (OFs) were investigated. We found that the incorporation of high concentration of interstitial molecular oxygen remarkably enhances the resistance to ionizing radiation of Ge-doped OFs in the UV-Visible domain and, at the same time, improves the transmission of UV light in the unirradiated OF sample. By comparison with previously reported results, the O2-loading treatment turned out to increase the radiation resistance of Ge-doped OFs more efficiently than F or Ce codoping. The understanding of such amelioration relies in basic radiation-induced mechanisms that we…
Specificity of weightlifting bench exercises in kayaking sprint performance: A perspective for neuromuscular training
2022
Several studies showed significant differences between bench lift exercises without investigating which is more related, in biomechanical and neuromuscular terms, to improve the sprint flatwater kayak performance. This study aims to compare the power-load and velocity-load neuromuscular parameters performed in prone bench pull (PBP), and bench press (BP) exercises to identify which of them meet the gesture specificity in sprint flatwater kayak performance. Ten elite kayakers participated in this study. Power-load, velocity-load relationships, the maximum dynamic strength, and the kayak sprint performance test were assessed. The power-load and velocity-load relationships showed significant d…
Change, Resistance to Change and Organizational Cynicism
2016
Abstract Over the past decades, the focus of the scientists has shifted towards the area of organizational change. The concept has been approached from several perspectives and studied by numerous disciplines and refers to a shift or transformation of an organization, of several components of the organization or of the processes that lie within. Being in an environment characterized by competitiveness and complexity, organizations are under a constant need of change, of progress, while the aim of each change is to improve the aspects that make this happen. The dynamics of the labour force market has contributed to the creation of an environment in which organizations are permanently facing …
Biharmonic obstacle problem: guaranteed and computable error bounds for approximate solutions
2020
The paper is concerned with a free boundary problem generated by the biharmonic operator and an obstacle. The main goal is to deduce a fully guaranteed upper bound of the difference between the exact minimizer u and any function (approximation) from the corresponding energy class (which consists of the functions in $H^2$ satisfying the prescribed boundary conditions and the restrictions stipulated by the obstacle). For this purpose we use the duality method of the calculus of variations and general type error identities earlier derived for a wide class of convex variational problems. By this method, we define a combined primal--dual measure of error. It contains four terms of different natu…
Heart Rate Variability Monitoring During Strength and High-Intensity Interval Training Overload Microcycles
2019
Objective: In two independent study arms, we determine the effects of strength training (ST) and high-intensity interval training (HIIT) overload on cardiac autonomic modulation by measuring heart rate (HR) and vagal heart rate variability (HRV). Methods: In the study, 37 well-trained athletes (ST: 7 female, 12 male; HIIT: 9 female, 9 male) were subjected to orthostatic tests (HR and HRV recordings) each day during a 4-day baseline period, a 6-day overload microcycle, and a 4-day recovery period. Discipline-specific performance was assessed before and 1 and 4 days after training. Results: Following ST overload, supine HR, and vagal HRV (Ln RMSSD) were clearly increased and decreased (small …
Power Loading-Induced Fatigue is Influenced by Menstrual Cycle Phase
2022
Purpose To examine the effects of fatiguing power-loading on neuromuscular properties, force production, and metabolic capacities during four phases of the menstrual cycle (MC); menstruation (M), mid-follicular (mid FOL), ovulation (OV), and mid-luteal (mid LUT). Methods Sixteen eumenorrheic women performed sessions of maximal explosive leg press (2x10 at 60%1RM load with 2 min recovery between sets). Serum hormones and neuromuscular responses were measured. Results The loading protocol significantly decreased power (between -14.2% and -12.5%; p < 0.001) and maximal force production (between MVC; -15.0% and -7.8%; p < 0.001–0.05), while decreasing activation level (between AL; -6.9% and -2.…
Natural Halogen Emissions to the Atmosphere: Sources, Flux, and Environmental Impact
2022
Understanding the atmospheric geochemical cycle of both natural and anthropogenic halogens is important because of the detrimental effect halogens have on the environment, notably on tropospheric and stratospheric ozone. Oceans are the primary natural source for atmospheric Cl, F, Br, and I, but anthropogenic emissions are still important, especially for Cl. While emissions of human-made halocarbons (e.g., chlorofluorocarbons or CFCs) are expected to continue to decrease allowing progressive stratospheric ozone recovery, volcanic activity (e.g., clusters of mid-scale explosive eruptions or large-scale explosive eruptions) might disturb this recovery over the next decades. This review provid…