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Samband mellan explosiv och maximal styrka vid Isometric Mid-Thigh-Pull: En tvärsnittsstudie om kraftutveckling
Linnaeus University, Faculty of Social Sciences, Department of Sport Science.
Linnaeus University, Faculty of Social Sciences, Department of Sport Science.
2024 (Swedish)Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesisAlternative title
Relationship Between Explosive and Maximal Strength in Isometric Mid-Thigh Pull : A Cross-Sectional Study on Force Development (English)
Abstract [sv]

Muskelstärkande fysisk aktivitet kan likställas med styrketräning och definieras som fysisk aktivitet med avsikt att förbättra eller bibehålla muskulär styrka, muskelvolym och/eller muskulär uthållighet. Explosiv styrka kan beskrivas som kraftutveckling per tidsenhet och är en produkt av styrka/kraft och hastighet. Tidigare studier har visat att en god explosiv och maximal styrka bland annat kan ge hälsovinster, förbättra idrottslig förmåga, minska risken för idrottsskador och kan förebygga fallrisken hos äldre. Isometric mid-thigh pull-test (IMTP) har under de senaste 10 åren blivit ett vanligt test för att mäta helkroppsstyrka hos idrottare. Testet är lätt att administrera och har en god validitet samt reliabilitet. Studiens syfte var att undersöka sambandet mellan explosiv- och maximal styrka hos styrketränande personer vid ett IMTP-test. Tio deltagare med minst ett års erfarenhet av styrketräning rekryterades. Resultatet visade en måttligt stark korrelation (r = 0,48) mellan explosiv och maximal styrka, men ingen statistisk signifikans (p = 0,158). Deltagarnas Peak Force var i genomsnitt 2644 ± 404 N och Peak force vid 250ms var medel 1808 ± 231 N (i medel hade deltagarna uppnått 69% av Peak Force vid 250ms). Sammanfattningsvis noterades att det möjligen kan finnas en trend i korrelationen mellan explosiv och maximal styrka. Detta indikerar att maximal och explosiv styrka troligen överlappar varandra, det kan däremot inte bekräftas då det inte fanns något statistiskt samband. Vidare rekommenderas att framtida forskning undersöker explosiv styrka och maximal styrka som distinkta styrkeförmågor med fler deltagare och standardiserade testmetoder krävs för att vidare undersöka sambandet mellan maximal och explosiv styrka.

Abstract [en]

Muscle-strengthening physical activity can be equated with strength training and is defined as physical activity with the intention of improving or maintaining muscular strength, muscle volume, and/or muscular endurance. Explosive strength can be described as force development per unit of time and is a product of strength/power and speed. Previous studies have shown that good explosive and maximal strength can yield health benefits, improve athletic performance, reduce the risk of sports related injuries, and prevent the risk of falls in older adults. The Isometric Mid-Thigh-Pull-test (IMTP) has become a common test for measuring whole body strength in athletes over the past 10 years. The test is easy to administer and has good validity and reliability. The aim of the study was to investigate the relationship between explosive and maximal strength in resistance-trained individuals using an IMTP-test. Ten participants with at least one year’s experience of resistance training were recruited. The results showed a moderately strong correlation (r = 0,48) between explosive and maximal strength, but no statistical significance (p = 0,158). The participants’ Peak Force averaged 2644 ± 404 N, Peak Force at 250ms averaged 1808 ± 231 N (on average, participants had received 69% of Peak Force at 250ms). In summary, it was noted that there might be a trend in the correlation between explosive and maximal strength. This suggests that maximal and explosive strength likely overlap, but this cannot be confirmed as there was no statistical significance. Furthermore, it is recommended that future research investigates explosive strength as distinct strength abilities. More participants and standardized testing methods are required to further explore the relationship between maximal and explosive strength

Place, publisher, year, edition, pages
2024. , p. 22
Keywords [en]
Isometric Mid-Thigh-Pull – Explosive strength – Maximal Strength
Keywords [sv]
Isometric Mid-Thigh-Pull – Explosiv styrka – Maximal styrka
National Category
Sport and Fitness Sciences
Identifiers
URN: urn:nbn:se:lnu:diva-130523OAI: oai:DiVA.org:lnu-130523DiVA, id: diva2:1870828
Educational program
Sports Science Programme, 180 credits
Supervisors
Examiners
Available from: 2024-06-19 Created: 2024-06-15 Last updated: 2025-02-11Bibliographically approved

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CiteExportLink to record
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