Search results for "Jump"
showing 10 items of 401 documents
Application of Operator Splitting Methods in Finance
2016
Financial derivatives pricing aims to find the fair value of a financial contract on an underlying asset. Here we consider option pricing in the partial differential equations framework. The contemporary models lead to one-dimensional or multidimensional parabolic problems of the convection-diffusion type and generalizations thereof. An overview of various operator splitting methods is presented for the efficient numerical solution of these problems.
Evolution of Balmer jump selected galaxies in the ALHAMBRA survey
2016
Extragalactic astronomy.-- et al.
Neuromuscular mechanics and hopping training in elderly.
2014
Purpose The present study examined the effects of repetitive hopping training on muscle activation profiles and fascicle–tendon interaction in the elderly. Methods 20 physically active elderly men were randomly assigned for training (TG) and control groups (CG). TG performed supervised bilateral short contact hopping training with progressively increasing training volume. Measurements were performed before the training period (BEF) as well as after 2 weeks (2 W) and 11 weeks (11 W) of training. During measurements, the gastrocnemius medialis–muscle (GaM) fascicle and its outer Achilles tendon length changes during hopping were examined by ultrasonography together with electromyographic (EMG…
Physical fitness of individuals with intellectual disability who have special olympics experience
2016
Physical fitness of individuals with intellectual disability (ID) is low compared to those without ID. Part of the mission of Special Olympics is to develop physical fitness. However, little is known about fitness levels of Special Olympics athletes. This study examined the fitness level of individuals who participated in Nordic Special Olympics Games 2008 in Finland. The sample consisted of 59 Special Olympics athletes (44 men, 15 women, age 16–45) whose fitness scores were compared to INAS-athletes (International Association of Sport for para-athletes with ID) and Finnish non-athletic individuals with ID. The fitness battery consisted of 8 items: BMI, sit-and-reach test, stork stand, sit …
iOS tērzēšanas lietojumprogramma
2017
Kvalifikācijas darba mērķis ir izstrādāt lietojumprogrammu, kas darbotos uz mobīlajām ierīcēm ar iOS operetājsistēmu. Lietojumprogrammas uzdevums ir dot cilvēku grupai iespēju reģistrēties dotajā lietojumprogrammā un dot iespēju izveidot dažādas terzēšanas istabas, lai katrā varētu apspriest izvēlētas tēmas. Atsevišķas terzēšanas istabas dot iespēju sakartot visas tēmas apspriešanai dažādās vietās, lai lietotājiem nevajadzētu ilgi meklēt visu īzziņu sarakstā, kur tieši bija apspriestas noteiktās tēmas. Tāpēc dota lietojumprogramma ne tikai organizē apspriešanas tēmas, bet ari taupa lietotāju laiku.
GraphQL un OData tehnoloģiju salīdzinājums lietotņu programmēšanas saskarņu izstrādē
2020
Autors maģistra darbā salīdzina lietojumprogrammu saskarņu (application programming interface, API) izstrādes tehnoloģijas OData un GraphQL, kas abas piedāvā lietotājiem lielāku elastību vaicājumu sastādīšanā salīdzinājumā ar izplatīto REST pieeju. Abas tehnoloģijas tiek gan aprakstītas no teorijas viedokļa, gan pārbaudītas praktiski, izstrādājot programmas-klientus un realizējot abu tehnoloģiju API kopīgam datu modelim aizmurugsistēmā. Iegūtie salīdzināšanas rezultāti tiek apkopoti un analizēti, pieminot katras tehnoloģijas galvenās priekšrocības un trūkumus, un aspektus, kas būtu jāapsver, lemjot par tehnoloģijas pielietošanu programmizstrādes projektā.
Effects of a Postural Exercise Program on Vertical Jump Height in Young Female Volleyball Players with Knee Valgus
2022
Background: Although a knee valgus position is related to the increase in injury risk in volleyball players, there is a lack of studies on the relationship between knee valgus and vertical jump (VJ) performance. Hence, the aim of this study was to investigate the effects of a postural exercise program on VJ height in young female volleyball players with knee valgus. Methods: This pilot study included 19 young female volleyball players divided into the following groups: the Valgus Experimental Group (VEG); the Valgus Control Group (VCG); and the Neutral Control Group (NCG). All three groups carried out the same volleyball training program. In addition, only the VEG underwent a 3-month postur…
Plantar pressure and EMG activity of simulated and actual ski jumping take-off
2001
Plantar pressures and activation of the four muscles (VL - vastus lateralis, GL - gluteus, TA - tibialis anterior and GA - lat. gastrocnemius) were measured from ten ski jumpers under simulated laboratory conditions with training shoes (Lab TS) and with jumping boots (Lab JB) as well as in actual hill jumping conditions (Hill). The most significant differences between measured conditions were found in muscle activation patterns and plantar pressures prior to take-off. The centrifugal force due to the curvature of the inrun under actual hill jumping conditions caused extra pressure under the fore and rear parts of the feet (P<0.001) and therefore higher activation in all muscles (P<0.001 for…
A heuristic model-based approach for compensating wind effects in ski jumping.
2021
Wind influences the jump length in ski jumping, which raises questions about the fairness. To counteract the wind problem, the International Ski Federation has introduced a wind compensation system in 2009: time-averaged wind velocity components tangential to the landing slope are obtained from several sites along the landing slope, and these data are used in a linear statistical model for estimating the jump length effect of wind. This is considered in the total score of the ski jump. However, it has been shown that the jump length effect estimates can be inaccurate and misleading. The present manuscript introduces an alternative mathematical wind compensation approach that is based on an …
A 47-Year Comparison of Lower Body Muscular Power in Spanish Boys: A Short Report
2020
Much of the evidence examining temporal trends in fitness among youth has found a decrease in measures of muscular strength and muscular power over recent decades. The aim of this study was to examine trends in lower body muscular power in Spanish boys over 47 years. In 1969 140 boys (10–11 years; body mass index = 19.24, SD = 2.91 kg/m2) and in 2016, 113 boys (10–11 years; body mass index = 19.20, SD = 3.15 kg/m2) were recruited. Lower body power was assessed using the vertical jump (VJ) and standing long jump (SLJ) tests. Significant differences and a large effect size were shown between groups in the SLJ (p = 0.001; d = 0.94) and the VJ (p = 0.001; d = 0.66). SLJ data in 1969 were higher…