Search results for " Metod"
showing 10 items of 1617 documents
Selective activation of shoulder, trunk, and arm muscles: A comparative analysis of different push-up variants
2015
Context The push-up is a widely used exercise for upper limb strengthening that can be performed with many variants. A comprehensive analysis of muscle activation during the ascendant phase (AP) and descendant phase (DP) in different variants could be useful for trainers and rehabilitators. Objective To obtain information on the effect of different push-up variants on the electromyography (EMG) of a large sample of upper limb muscles and to investigate the role of the trunk and abdomen muscles during the AP and DP. Design Cross-sectional study. Setting University laboratory. Patients or Other Participants Eight healthy, young volunteers without a history of upper extremity or spine injury.…
Effects of Rapid Weight Loss on Judo Athletes: A Systematic Review
2020
Rapid weight loss (RWL) is commonly practiced among judo athletes. Although it helps them to gain the advantage over their lighter opponents, previous studies have shown that RWL can have a negative impact on the athlete’s performance and overall well-being. This systematic review aimed to synthesize the evidence that examines the influence of rapid weight loss on physiological parameters, biomarkers, and psychological well-being in judo athletes. We followed the preferred reporting items for systematic reviews and meta-analyses guidelines. We searched for studies on Web of Science and PubMed that elaborate on the influence of ≥5% RWL achieved over ≤7-day period in judokas. Out of 52 studie…
Prostasomes as zinc ligands in human seminal plasma
2004
Prostasomes are small vesicles, containing zinc, secreted by prostate in human seminal plasma and showing a physiological role on sperm properties. In this study, the possible correspondence between prostasomes and a prostatic high molecular weight protein complex, recently indicated as zinc ligand, has been investigated. Isolated prostasomes, examined by scanning electron microscopy, were dialysed to evaluate their zinc binding capacity. Furthermore, seminal plasma Sephadex G-75 elution was carried out before and after prostasome removal. Prostasome preparations, containing typical vesicles of 50-500 nm, showed a positive correlation between their zinc and protein levels. They were able to…
Group fitness activities on elderly: who is eligible and who is not.
2012
Introduction While it is impossible to prevent every injury, literature suggests that injury rates could be reduced by 25% if people took appropriate preventative action. On the other side, one major problem of Group Fitness Instructors is to find the right intensity/level suitable for every attendee during classes (e.g. ballroom dancing). Therefore, the aim of this study was to examine the opportunity to adopt already validated function ability tests on group fitness activities with the aim to prevent injuries and maintain or increase quality of life. Methods The study was conducted with a quasi-experimental design. The Berg Balance Scale (BBS) and the Barthel index (BI) were administered …
The effect of resistance training programs on lean body mass in postmenopausal and elderly women: a meta-analysis of observational studies
2021
AbstractAging and menopause are associated with morphological and functional changes which may lead to loss of muscle mass and therefore quality of life. Resistance training (RT) is an effective training mode to increase muscle mass. We reviewed the existing literature to identify studies implementing RT protocols and evaluating muscle hypertrophy exclusively in healthy, postmenopausal and elderly women. Participants’ age range was comprised between 50 and 80 years. The primary outcome observed was muscle hypertrophy. Fat mass was also evaluated, if available. PubMed and Web of Science were the screened database, and original articles written in English and published from 2000 up to 2020 we…
Improved postural control after dynamic balance training in older overweight women
2010
Background and Aims: Many studies have reported a greater frequency of falls among older women than men under conditions which stress balance. Previously, we have found an improvement in static balance in older women with an increased support surface area and an equal load redistribution on both feet in response to a dynamic balance training protocol. The aim of the present study was to examine whether the same training program and body composition would have effects on the postural control of older overweight women. Methods: Ten healthy women (68.67 ± 5.50 years; 28.17 ± 3.35 BMI) participated in a five-week physical activity program. This included dynamic balance exercises such as heel-to…
Aktualizācijas fāzē izmantojamās metodes ķīmijas stundās pamatskolā
2019
Darba tēma: “Aktualizācijas fāzē izmantojamās metodes ķīmijas stundās pamatskolā”. Darba autore Jeļizaveta Šlikova. Darba vadītājs Jazēps Logins. Diplomdarbā ir 56 lappuses, 5 nodaļas, 38 apakšnodaļas, 4 tabulas, 24 attēli, 3 pielikumi, 27 informācijas avoti. Darbs rakstīts latviešu valoda. Darba mērķis ir apkopot teorijā aprakstītās un skolotāju praksē lietotās metodes un mācību paņēmienus ķīmijā un aprobēt materiālus aktualizācijas fāzei, kurus varētu izmantot ķīmijas apguvē pamatskolā. Tika veikta literatūras analīze ar mērķi noskaidrot, kas ir stundas aktualizācija, kādas metodes parasti tiek izmantotas. Pētnieciskajā daļā tika veikta mācību materiālu aprobācija 8.-9. klasēs ar dažādām …
Skolēnu intereses veicināšana bioloģijas mācību stundu aktualizācijas fāzē
2018
Skolēnu intereses veicināšana bioloģijas mācību stundu aktualizācijas fāzē. Santa Krastiņa, darba vadītājs Vad. pētn. Dr. paed. Rita Birziņa. Bakalaura darbs, 51. lpp., 19 literatūras avoti, 16 pielikumi, 29 attēli, 1 tabula. Latviešu valodā. Darba mērķis ir noskaidrot, kā dažādu mācību metožu izmantošana veicina skolēnu interesi un pilnveido viņu zināšanas bioloģijas mācību stundās aktualizācijas fāzē. Veikta zinātniskās literatūras izpēte par stundas struktūru, mācību motivāciju un mācību metodēm. Empīriskajā pētījumā izstrādātas un aprobētas mācību stundas, izmantojot dažādas mācību metodes aktualizācijas fāzē. Izveidota aptauja skolotājiem un anketas skolēniem. Noskaidrots, ka mācību me…
Alesa Arconidea (Tusa): proposta ricostruttiva dell’agora tardo ellenistica
2022
In the second half of the second century BC, in the wake of the building renovation that affected the most important urban centers of northern Sicily, even the ancient city of Alesa Arconidea remodeled its monumental structure. The agora/forum, in particular, was restructured in a scenographic system, acquiring the architectural characteristics of a typical Hellenistic monumental complex, similar to those of Greece and Asia Minor, by which it was influenced. In planimetric terms, to date up to the present time, the agora represents a unicum in Sicily because of its Π shape with deep double columns of the arcade, which enclose a large square excluded to vehicular traffic. Recent researches a…
Dinamiskie un ģeoķīmiskie sālsūdens intrūzijas izcelsmes indikatori Akmens tilta pazemes ūdeņu novērojumu postenī
2018
Ūdens resursu kvalitāte ir viens no svarīgākajiem sociāl-ekonomiskajiem faktoriem pilsētu attīstībai. Piejūras lielo pilsētu pazemes ūdeņu krājumi ir pakļauti jūras intrūzijas riskam, ko izraisa pārmērīga pazemes ūdens ekspluatācija. Šāda situācija izveidojās Rīgā 20. gs. 70-tajos gados Gaujas ūdens horizontā, kas izraisīja pazemes ūdens līmeņa kritumu arī pārsedzošajos ūdens horizontos. Tiek uzskatīts, ka depresijas piltuves aizpildīšanās notiek dziļāk iegulošo ūdeņu augšupvērstas infiltrācijas rezultātā, tomēr trūkst detalizētu pētījumu, kas to pierādītu. Pētījuma mērķis ir noskaidrot sāļā ūdens izcelsmi Akmens tilta novērojumu postenī, izmantojot dinamiskos un ģeoķīmiskos ūdens izcelsmes…