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Samband mellan höftrörlighet och bålrotation hos professionella golfspelare: Proas majors inverkan på bålrotationen
Umeå University, Faculty of Medicine, Department of Community Medicine and Rehabilitation, Sports medicine.
2018 (Swedish)Independent thesis Advanced level (degree of Master (One Year)), 20 credits / 30 HE creditsStudent thesisAlternative title
Correlation between hip mobility and trunk rotation among professional golf players : The effect of m. Psoas Major on trunk rotation (English)
Abstract [sv]

Golf är en komplex sport som ställer höga krav på utövarens rörlighet i framförallt höfter, rygg och axlar. Begränsad rörlighet i dessa delar leder inte sällan till skada. I denna studie undersöktes om det finns något samband mellan höftrörlighet och bålrotation hos 27 professionella golfspelare. Studien innehöll även en interventionsdel där 16 idrottsaktiva män fick sina höfter behandlade med stretching för att se om detta påverkar bålrotationsförmågan. Hypotesen var att det finns ett samband och att stretchning av psoas major ökar bålrotationen.

Golfspelarnas medelålder var 29 år (SD ±4 år), de hade olika nationaliteter och spelade aktivt på någon av de ledande golftourerna i världen. Deltagarna i interventionsstudiens medelålder var 30 år (SD ±2 år) och de var bosatta i Stockholm.

Höftrörlighet mättes med hjälp av modifierat Thomas test och bålrotation i sittande på brits. Mätverktyget var digital goniometer. Stretchbehandlingen utfördes av testledaren med försökspersonen liggande på brits i samma position som vid modifierat Thomas test.

Signifikant korrelation(-0,40) ses mellan bålrotation vänster och höftextension vänster höft hos golfspelarna. Interventionsgruppen ökar sin bålrotation från 68 grader (SD ±9 grader) till 70 grader (SD ±9 grader) till vänster och från 70 grader (SD ±12 grader) till 73 grader (SD ±11 grader) till höger. Båda ökningarna är signifikanta. Vald signifikansnivå α=0,05. Resultatet av denna studie är att bålrotationen kan förbättras genom stretchning av höftens flexorer och att det kan finnas ett samband mellan höftens rörlighet och rotationsförmågan i bålen. Denna kunskap kan vara en hjälp för fysioterapeuter som är verksamma inom idrotter som kräver både god höftrörlighet och bålrotation. 

Abstract [en]

Golf is a complex sport that require great mobility in hips, back and shoulders. Limited mobility in these parts of the body can cause injury. This study is investigating the possible correlation between hip mobility and trunk rotation among 27 professional golf players. The study also includes an intervention group of 16 sport active males that got their hips treated with stretching, to examine possible effects on the trunk rotation. The hypothesis was that there is a correlation and that stretching of psoas major increases the trunk rotation.

The average age of the golf players was 29 years (SD±4 years), they were of different nationalities but were all professionally active within one of the leading international golf tours. The participants of the intervention study had an average age of 30 years (SD ±2 years), and were all Stockholm residents.

The hip rotation was measured through a modified Thomas test, and the trunk rotation were performed in sitting position on a regular treatment table. The measuring instrument was a digital goniometer. The stretching treatment was done by the test leader with the subjects lying on the treatment table in the same position as when performing the modified Thomas test.

Significant correlation (-0.40) is seen between left trunk rotation and left hip extension among the golf players. The intervention group increases their left trunk rotation from 68 degrees (SD ±9 degrees) to 70 degrees (SD ±9 degrees) and from 70 degrees (SD ±12 degrees) to 73 degrees (SD ± 11 degrees) on their right trunk rotation. Both increases are to be considered as significant. Chosen significance level is α=0.05.

The result of this study is that the trunk rotation can be improved by stretching of the hip muscles and that there is a plausible correlation between the mobility of the hip and the trunk rotation. This knowledge can be used by physiotherapists that are specialised on sports that requires both good hip mobility and trunk rotation. 

Place, publisher, year, edition, pages
2018. , p. 28
Keywords [en]
Golf, Thomas test, Psoas major, stretching
Keywords [sv]
Golf, Thomas test, Psoas major, stretching
National Category
Sport and Fitness Sciences
Identifiers
URN: urn:nbn:se:umu:diva-145279OAI: oai:DiVA.org:umu-145279DiVA, id: diva2:1185890
Educational program
Master program in Sports Medicine
Supervisors
Examiners
Available from: 2018-02-27 Created: 2018-02-26 Last updated: 2018-02-27Bibliographically approved

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