Search results for "198"
showing 10 items of 334 documents
Efectos de la vibración sobre la actividad del rectus abdominis y sobre la transmisión de aceleraciones durante la realización de un puente frontal. …
2012
Durante las dos ultimas decadas se ha incrementado notablemente la utilizacion de la vibracion como medio complementario de ejercicio fisico. La literatura cientifica muestra distintos efectos positivos, aunque la mayor parte de ensayos se han centrado en el analisis del ejercicio de squat. El objetivo del presente estudio fue analizar la actividad muscular del rectus abdominis y la transmision de la vibracion en el cuerpo humano durante la realizacion de un puente frontal sobre una plataforma vibratoria oscilante vibrando a diferentes frecuencias (5, 16, 20 Hz) y a una amplitud constante (3 mm). Las aceleraciones maximas en la cabeza (ejes X, Y, Z) y la actividad electromiografica media de…
Study of postural control and body balance in subjects with Down syndrome
2020
Purpose. Body imbalance and poor postural control have negative impact on gait and may increase the risk of falling in healthy individuals as well as those with Down syndrome (DS). Since people with DS have lower physical levels than people who do not present this condition, the purpose of our research was to compare features of postural control and body balance between subjects affected by DS and a control sample. Methods. Participants enrolled were divided into the following two groups: A DS group (DSG; n = 22; 9 females and 13 males; age range: 16-36 years) and an age-matched control group (CG; n = 25; 11 females and 14 males; age range: 16-36 years). All participants were subjected to t…
Taloustieteilijöiden harjoittelijavaihdosta poikkitieteelliseen johtajuuteen : AIESEC Jyväskylä 1969-2009
2014
Pro gradu -työni on toimeksiantona tehty AIESEC Jyväskylän 40-vuotishistoria. Järjestön historiaa tarkastellaan arkistolähteiden ja alumnien haastattelujen pohjalta. AIESEC perustettiin 1948 rauhanaatteen pohjalle luomaan ymmärrystä kulttuurien välille kansainvälisen harjoitteluvaihdon avulla. AIESEC Jyväskylä perustettiin 1969 osaksi Jyväskylän yliopiston taloustieteiden ainejärjestöä Pörssi ry:tä, ja sen toiminta oli suunnattu taloustieteilijöille. Toiminta koostui harjoittelupaikkojen hankinnasta paikallisiin yrityksiin, ulkomailta tulleiden harjoittelijoiden vastaanottamisesta ja kesäohjelman järjestämisestä saapuville harjoittelijoille. Heikosti kansainvälistyneessä Keski-Suomessa järj…
Antonio Rodríguez de Trujillo (1925-1989) y la metamorfosis de su pintura
2016
Development of basic psychological need satisfaction in physical education
2019
Research shows that sports-active students experience more basic need satisfaction (autonomy, competence, relatedness) in physical education (PE) than their non-sports-active peers, and thus, reap most of the benefits of PE. This study aimed to investigate the role of a two-year PE programme, referred to as Interest-based PE, in contributing to students’ basic need satisfaction in PE, and in particular, to assess potential basic needs-benefits among students who were not involved in leisure-time sport. Among 693 students, 348 were offered a choice of two different PE approaches (“explorative” vs. “sports” approach) for the next two years, while the remaining students continued to receive tr…
Zvaigžņotā Debess: 2008, Vasara
2008
Latvijas Zinātņu akadēmija, Latvijas Universitāte
Sport commitment and adherence: A social-cognitive analysis. (Compromiso deportivo y adherencia: Un análisis cognitivo social).
2011
Abstract Statement of problem: This study aimed to analyse the ability of a model based on achievement motivation and self-determination theories to predict adherence to competitive sport. This model incorporated commitment as predictor of adherence. A prospective study was performed with a sample of 302 handball players aged between 14 and 18 years. Structural equation modelling gave support to the model proposed. It was verified the sequence of relationships between perceptions of coach-created mastery climate, psychological needs, self-determined motivation, commitment, and adherence. The major contribution of the study was to confirm a motivational model of adherence based on social-cog…
Lauku diskurss presē latviešu valodā Latvijā (1989-2012)
2014
Promocijas darbā analizēts preses veidotais lauku diskurss un tā izmaiņas sociālekonomisko un citu apstākļu ietekmē no 1989. līdz 2012. gadam. Pētījumā aplūkotas laukiem, to iedzīvotājiem un zemniecībai piedēvētās nozīmes, rezultātus skatot nacionālās identitātes un sociālās atmiņas kontekstā. Teorētiskajā daļā izskaidrota lauku un nācijas saikne, nacionālās identitātes, sociālās atmiņas jēdzieni un komunikācijas loma nācijas re-iztēlošanas procesā. Konteksta uztverei darbu papildina latviešu nacionālās identitātes izpratnes, lauku un lauksaimniecības attīstības, mediju vides un tēmas izpētes līmeņa apraksts. Empīriskie dati iegūti ar diskursa vēsturisko analīzi un kvantitatīvo kontentanalī…
Entre los hilos y el ovillo. Juan Navarro Ramón (1903-1989) y sus ?poéticas? pictóricas
2018
Biceps Femoris Long Head Muscle Fascicles Actively Lengthen During the Nordic Hamstring Exercise
2021
Current debate exists around whether a presumed eccentric exercise, the Nordic hamstring exercise (NHE), actually causes active hamstring muscle lengthening. This is because of the decoupling that can occur between the muscle fascicle and muscle-tendon unit (MTU) length changes in relatively compliant human lower-limb MTUs, which results in MTU lengthening not necessarily causing muscle fascicle lengthening. This missing knowledge complicates the interpretation of why the NHE is effective at reducing running-related hamstring muscle injury risk in athletes previously unfamiliar with performing this exercise. The purpose of the study was therefore to investigate if the most-commonly injured …