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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Prediktorer för sprintförmåga på is hos elitishockeyspelare. : Kan prestation på is förutspås av styrke- och spänsttester?

Schirmer, Dennis January 2015 (has links)
BAKGRUND: Ishockey är en stor idrott med över 80000 aktiva spelare i Sverige. SYFTE: Syftet med denna studie var att fastställa huruvida det finns korrelation mellan tester rekommenderade av Svenska Ishockeyförbundet och prestationsförmåga på is. Vidare skulle testresultaten ställas i relation till antropometriska värden. METOD: Studiepopulationen rekryterades från hockeylag i division I. Testerna 1RM knäböj, stående längdhopp samt sergants jump utfördes enligt Svenska Ishockeyförbundets rekommenderade förfarande. Prestationsförmåga på is mättes genom 17 m sprintlopp. Korrelationen mellan testerna och prestation på is beräknades med pearsons korrelationskoeffecient. P<0.05 betraktades som signifikant. RESULTAT: Totalt rekryterades 34 ishockeyspelare från division 1 (100 % män, medel ± SD: ålder 22,7 ±2.24 år; vikt 85,3 ±6,4 kg; längd 182 ±6 cm). Av utförda tester var det endast 1RM knäböj/kroppsvikt-ratiot som med statistisk signifikans visades korrelera med prestationsförmågan på is (r=0,389, p=0,049). Övriga tester uppvisade ingen statistisk signifikans. SLUTSATS: Studiens resultat pekar mot att det finns en svag statistiskt signifikant korrelation mellan 1RM knäböj/kroppsvikt-ratio och sprintförmåga på is. Knäböj/kroppsvikt-ratiot svarar dock endast för en liten del av prestationsförmågan på is, varvid knäböjens starka position som grundövning utanför isen bör ifrågasättas. / BACKGROUND: Ice hockey is a large sport with over 80000 active players in Sweden. PURPOSE: The aim of this study was to determine whether there are correlations between tests recommended by the Swedish Ice Hockey Federation and on-ice performance. The results were also to be examined in relation to antropometric values. METHOD: The studypopulation was recruited from Swedish tier-III teams. The 1RM squat, standing long jump sand sergants jump were performed as described by the Swedish Ice Hockey Federations guidelines. On-ice performance was measured by a 17m sprint. The correlation between off- and on-ice tests were calculated using pearsons correlation coefficient. Statistical significance was set to P<0.05. RESULTS: Thirtyfour male ice hockey players from Swedish tier-III were recruited for the study (100% men, mean ± SD: age 22,7 ±2.24 years; weight 85,3 ±6,4 kg; length 182 ±6 cm). Out of the performed tests only 1RM squat/bodywight-ratio showed a statistical significant correlation to on-ice performance (r=0,389, p=0,049). The other tests did not show statistical significance. CONCLUSION: The results points towards a weak statistical significant correlation between 1RM squat/bodywight-ratio and on-ice sprinting ability. The 1RM squat/bodyweight-ratio however explained a small portion of on-ice performance, hence the squats strong position as basic exercise off-ice should be questioned.
2

Finns det en korrelation mellan sprintprestation och prestation i Isometric Mid-Thigh Pull Test och hopprestation hos unga manliga innebandyspelare?

Kågström, Markus, Lidesjö, Jens January 2023 (has links)
Bakgrund: Inom flera idrotter såsom fotboll, basket och innebandy är en bra sprintprestation viktigt. Sprintprestation påverkas av många olika faktorer. I litteraturen har det noterats en stark korrelation mellan prestation i vertikala och horisontella hopp och sprintprestation. Dessutom har flera studier påvisat hur prestation i Isometric Mid-Thigh Pull (IMTP), som är en form av test av maximal statisk styrka i ben- och ryggmuskulaturen, har en måttlig eller stark korrelation med sprintprestation. Enligt författarnas kännedom har ingen studie undersökt korrelationen mellan sprintprestation och variablerna hopphöjd, hopplängd, Rate of Force Development (RFD), Relativ Power (RP) samt Peak Force (PF) hos unga manliga innebandyspelare. Syfte: Syftet med studien är att undersöka korrelationen mellan sprintprestation och prestation i IMTP-test och hopprestation hos unga manliga innebandyspelare. Metod: Deltagarna bestod av nio unga manliga innebandyspelare; 16 ± 1 år, 73,2 ± 6,5 kg och 179 ± 7 cm, som genomförde tester bestående av 20-metersprint, stående längdhopp, Countermovement Jump (CMJ) och IMTP. Resultat: Icke-signifikanta måttligt starka korrelationer noterades mellan sprintprestation och hopprestation (hopphöjd i CMJ, r=-0.455, p=0.219; hopplängd i stående längdhopp, r=-0.467, p=0.205; RP (w/kg) i CMJ, r=-0.356, p=0.348). Ingen av de övriga testresultaten (RFD och PF i IMTP-test) korrelerade med sprintprestation. Slutsats: Måttligt starka, icke-signifikanta korrelationer observerades mellan sprintprestation och hopprestation (hopphöjd i CMJ, hopplängd i stående längdhopp, RP (w/kg) i CMJ. Att de måttligt starka sambanden inte blev statistiskt signifikanta beror troligtvis på att studien hade för få deltagare (n=9). Det fanns ingen korrelation mellan sprintprestation och övriga variabler (RFD och PF i IMTP). Framtida forskning inom ämnet bör genomföras på ett större urval för att kunna få resultat med statistisk signifikans. / Background: Within several sports such as football, basketball and floorball sprint performance is an important ability. Sprint performance is influenced by a variety of factors. Previous literature has demonstrated that there may be a strong correlation between performance in vertical and horizontal jumping and sprint performance. In addition, several studies have shown how performance in Isometric Mid-Thigh Pull (IMTP), which is a form of test of maximal static strength in the leg and back muscles, has a moderate or strong correlation with sprint performance. However the authors found no study that has examined the correlation between sprint performance and the variables jump height, jump length, RFD, RP and PF among young male floorball players. Aim: The aim of this study was to examine the correlation between sprint performance and performance in IMTP-test and jump performance among young male floorball players. Method: The participants in this study consisted of 9 young male floorball players; 16 ± 1 years, 73,2 ± 6,5 kg och 179 ± 7 cm, that performed a variety of tests; 20 meter sprint, standing long jump, Countermovement Jump (CMJ) and IMTP. Results: Non-significant moderately correlations were noted between sprint performance and jump performance (jump height in CMJ, r=-0.455, p=0.219; jump length in standing long jump, r=-0.467, p=0.205; RP (w/kg) in CMJ, r=-0.356, p=0.348). None of the other test results (RFD and PF in IMTP-test) correlated with sprint performance. Besides that none of the test results had a correlation with a statistical significance. Conclusion: Moderately strong, non-significant correlations were observed between sprint performance and jump performance (jump height in CMJ, jump length in standing long jump, RP (w/kg) in CMJ). The relatively low number of participants (n=9) in this study may explain why the moderately strong relationships betweeen sprint and jump performance did not become statistically significant. There was no correlation between sprint performance and the other variables (RFD and PF in IMTP). Future research should be conducted on a larger sample in order to obtain results with statistical significance.
3

Standing long jump compared to vertical jump as a field test for assessing leg power in firefighter trainees : A correlation study from a gender equality perspective

Bringsén-Bornegrim, Mimmi January 2021 (has links)
Background: Within the rescue service, a varied background is needed to increase the possibility of delivering equal service to the citizens. At present, there is a skewed gender distribution within the municipal rescue services, with only a couple of percent of the firefighters being women. Many women find it difficult to meet the physical limit values on recruitment tests. The standing long jump (SLJ) is used as a part of recruitment tests on many rescue services, to assess leg power. It is not clear though whether SLJ is the most appropriate field-test to assess leg power in firefighter trainees, with men and women mixed in the same group, as it has been argued that anthropometric factors, such as body height (BH), affects the result. Thereby we wanted to study the relationship between BH and SLJ, and compere SLJ with another field-test for measuring leg power, one that omits the variable BH. Aim: The aim was to study the strength of the relationship between body height and the jump length at standing long jump, for firefighter trainees. A second aim was to study the strength of the relationship between firefighter trainees' jump results of the two tests: standing long jump and vertical jump. Methods: The study was executed as an observational cross-sectional study. Three different measurements were carried out: BH, vertical jump (VJ) and SLJ. Correlation analyzes, with Pearson's correlation coefficient, were performed on BH in relation to SLJ, and VJ in relation to SLJ. Results: Fourteen (n = 14) firefighter trainees (women n = 5, men n = 9) met the inclusion criteria and participated in the study. Subjects' age, body mass index (BMI) and number of workouts per week were 29 ± 7 years old, 25 ± 2 kg/m2 and 4 ± 1 workouts (at least 30 minutes) per week. Results showed a significant moderate correlation between BH and SLJ (r = 0.572). Between the variables VJ and SLJ there were a significant strong correlation (r = 0.862). However, the results changed substantially when the analyzes were performed separately for men and women, with a very low correlation level (r = 0.106 respective r = 0.166) between BH and SLJ. For VJ and SLJ there were a moderate correlation level for men and low for women (r = 0.414 respective r = 0.387). Conclusion: The result from this study is in line with aforementioned work and supports the hypothesis that BH to some extent can affect the jump result at SLJ. Our study complements earlier work and indicates that these results are also applicable to firefighter trainees. The findings in this study indicates VJ could possibly be an alternative field test for SLJ, to assess leg power when recruiting new firefighters. Additional studies are required to investigate the correlation between SLJ and VJ with ad- ditional confounders, such as actual leg power, and also the correlation between VJ and fire- fighters heaviest among most common work tasks.

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