4 resultados para countermovement jump

em Dalarna University College Electronic Archive


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Ski jumping was the only sport included in the Winter Olympics, where women were not allowed to take part until the first week of April 2011, when IOC decided to let them in to the Olympic family, a major victory for women´s ski-jumping. Since 2004 the Norwegian media had women ski jumping as one important topic in their media coverage. The third of March 2010 the new Holmenkollen ski-jumping hill was inaugurated. It had been rebuilt for the World Championships 2011. The first jump on the hill was surrounded by an intense debate. Annette Sagen was decided to be the first jumper on the hill after a poll on the social media channel Facebook that gave Annette Sagen over 40 000 votes.  However Tuesday the second of March Björn Einar Romören, a world cup jumper, did the first jump during a training session. This act started a significant chain of events. The biggest Norwegian web – magazines Verldens Gang and Aftenposten made this the head story and they invited the readers to interaction. Within 24 hours 11 000 comments were written, most of them in favor of Sagen and against Romören´s behavior. The Norwegian Ski Association excluded Romören from two World Cup competitions. What did happen during these days in the media?  I want to present the activities, which went on in two web-magazines, and analyze the articles written on the topic. Main issues are to show what an impact a social media network had on the sport in this specific case and how different actors appeared in the media and discuss if Romörens exclusion was a result of the mediatization.

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Syfte - Studien avser att undersöka om prestation gällande maximalstyrka och explosivitet varierar under menstruationscykeln. Dessutom undersöks om den psykologiska motivationen eller känslan korrelerar med prestationen. Studiens syfte är att skapa en utgångspunkt för att se om periodisering av styrketräning i relation till menstruationscykeln faser är aktuell för kvinnor inom prestationsidrotter. Metod - Testerna genomfördes under en menstruationscykel, fyra veckor. Ett test genomfördes varje vecka för att täcka in fyra faser under menstruationscykeln och för att erhålla ett konsekvent veckomönster. Menstruationscykelns faser räknades ut i efterhand för att inte i förhand påverka testdeltagarnas motivation och prestation i förhållande till menstruationscykeln. Fas 1 menstruationsfas, fas 2 intermenstruation, fas 3 intermenstruation/ägglossning och fas 4 premenstruation. I testgruppen ingick fyra kvinnor, 32 år (± 10), längd 162,8 cm (± 7,32), vikt 57,4 kg (± 5,79). I kontrollgruppen ingick en man och två kvinnor utan menstruation, 26,67 år (± 9,02), längd 168,3 cm (± 8,96), vikt 71,7 kg (± 11,02). Fysiska tester, längdhopp och knäböj. En standardiserad uppvärmning genomfördes inför varje test, följdes av tre stycken jämfota längdhopp utan ansats med två minuter vila mellan hoppen. Bästa hoppet av tre dokumenterades. Längdhopp (CV 1,8 %) (Hopkins, Schabort & Hawley, 2001), knäböj, en repetition max [1RM] (CV 1,57 %) (Urquhart, Moir, Graham & Connaboy, 2015). En specifik uppvärmning genomfördes även inför 1RM knäböj därefter försök på en repetition på 1RM. Frågeformulär gällande hälsotillstånd och motivation “Snabbkollen” (Cross & Lyle, 1999) besvarades inför varje testtillfälle. Vid sista testtillfället fick alla testdeltagare fylla i ett frågeformulär om upplevda symptom och tillstånd under den gångna menstruationscykeln. Resultat och slutsats - Det är ur denna studie svårt att tyda om menstruationscykelns olika faser skulle ha någon relevant effekt värd att ta hänsyn till när det gäller prestationen hos idrottande kvinnor. Dock visar resultaten att menstruationscykeln påverkar motivationen.  

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The purpose was to determine the magnitude of aerobic and anaerobic performance factors among elite male football players in different team positions. Thirty-nine players from the highest Swedish division classified as defenders (n=18), midfield players (n=12) or attackers (n=9) participated. Their mean (± sd) age, height and body mass (bm) were 24.4 (±4.7) years, 1.80 (±5.9)m and 79 (±7.6)kg, respectively. Running economy (RE) and anaerobic threshold (AT) was determined at 10, 12, 14, and 16km/h followed by tests of maximal oxygen uptake (VO2max). Maximal strength (1RM) and average power output (AP) was performed in squat lifting. Squat jump (SJ), counter-movement jump with free arm swing (CMJa), 45m maximal sprint and the Wingate test was performed. Average VO2max for the whole population (WP) was 57.0mL O2•kg-1min-1 . The average AT occurred at about 84% of VO2max. 1RM per kg bm0.67 was 11.9±1.3kg. Average squat power in the whole population at 40% 1RM was 70±9.5W per kg bm0.67 . SJ and CMJa were 38.6±3.8cm and 48.9±4.4cm, respectively. The average sprint time (45m) was 5.78± 0.16s. The AP in the Wingate test was 10.6±0.9W•kg-1 . The average maximal oxygen uptake among players in the highest Swedish division was lower compared to international elite players but the Swedish players were better off concerning the anaerobic threshold and in the anaerobic tests. No significant differences were revealed between defenders, midfielders or attackers concerning the tested parameters presented above.

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The purpose was to determine the magnitude of aerobic and anaerobic performance factors among elite male football players in different team positions. Thirty-nine players from the highest Swedish division classified as defenders (n=18), midfield players (n=12) or attackers (n=9) participated. Their mean (± sd) age, height and body mass (bm) were 24.4 (±4.7) years, 1.80 (±5.9)m and 79 (±7.6)kg, respectively. Running economy (RE) and anaerobic threshold (AT) was determined at 10, 12, 14, and 16km/h followed by tests of maximal oxygen uptake (VO2max). Maximal strength (1RM) and average power output (AP) was performed in squat lifting. Squat jump (SJ), counter-movement jump with free arm swing (CMJa), 45m maximal sprint and the Wingate test was performed. Average VO2max for the whole population (WP) was 57.0mL O2•kg-1min-1. The average AT occurred at about 84% of VO2max. 1RM per kg bm0.67 was 11.9±1.3kg. Average squat power in the whole population at 40% 1RM was70±9.5W per kg bm0.67. SJ and CMJa were 38.6±3.8cm and 48.9±4.4cm,respectively. The average sprint time (45m) was 5.78± 0.16s. The AP in the Wingate test was 10.6±0.9W•kg-1. The average maximal oxygen uptake among players in the highest Swedish division was lower compared to international elite players but the Swedish players were better off concerning the anaerobic threshold and in the anaerobic tests. No significant differences were revealed between defenders, midfielders or attackers concerning the tested parameters presented above.