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A multi-disciplinary approach to studying performance among high-level golfers: physiological and biomechanical aspects
Högskolan i Halmstad, Akademin för ekonomi, teknik och naturvetenskap, Rydberglaboratoriet för tillämpad naturvetenskap (RLAS). Högskolan i Halmstad, Akademin för hälsa och välfärd, Centrum för forskning om välfärd, hälsa och idrott (CVHI).ORCID-id: 0000-0003-1184-5036
2018 (Engelska)Licentiatavhandling, sammanläggning (Övrigt vetenskapligt)
Abstract [en]

In competitive golf, the player’s ability to hit the ball a long distance affects the score in a positive way. Swing kinematics is considered an important factor in driver performance; one way of improving swing kinematics is through strength and power training. Subsequently, high-level golfers and their coaches often explore novel ways of increasing the distance of a shot, in particular driver carry distance (CD). This licentiate thesis presents two studies with the overall aim of studying how swing kinematic and physical characteristics are associated with driver performance among intercollegiate golf players. The studies report swing kinematics associated with driver performance (study 1) and the impact of isokinetic rotational training on driver performance and swing kinematic variables (study 2).

The methods used were (1) a cross-sectional correlation study (n=15) and (2) an open trial intervention study (n=20). The studies investigated (1) the relationship between golf swing kinematics and driver performance, and (2) the impact of strength training on swing kinematics and driver performance variable.

The results show variables that were distinctive for the club head speed (CHS) were mainly during the downswing: greater X-factor stretch; and higher pelvis peak speed. Whilst, factors distinctive to the regression model for CD were mainly at impact: reduced thorax rotation; and greater thorax lateral bend. Nine weeks of isokinetic training increased seated rotational force and power, peak arm speed and arm acceleration, ball speed, and CD more compared to isotonic training. Even though isokinetic training did not increase CHS, it did result in greater CD.

This licentiate thesis contributes to the understanding of which variables influence driver performance, in particular CD, among high-level golfers. Segmental interactions (pelvis-thorax), lead arm speed and acceleration, isokinetic and isotonic training. These results may guide training interventions aiming to improve driver and golf performance among high-level golfers, particularly those with a background of strength training. Future studies could investigate how the interaction between swing kinematics, clubhead trajectory, and driver performance variables differ between male and female golfers.

Ort, förlag, år, upplaga, sidor
Halmstad: Halmstad University Press, 2018. , s. 73
Serie
Halmstad University Dissertations ; 49
Nyckelord [en]
Carry distance, clubhead speed, driver performance, golf kinematics, sports performance, strength training, isokinetic training
Nationell ämneskategori
Idrottsvetenskap
Identifikatorer
URN: urn:nbn:se:hh:diva-37792ISBN: 978-91-88749-02-4 (tryckt)ISBN: 978-91-88749-03-1 (digital)OAI: oai:DiVA.org:hh-37792DiVA, id: diva2:1242136
Presentation
2018-09-18, O125, Högskolan i Halmstad, Halmstad, 09:00 (Engelska)
Opponent
Handledare
Forskningsfinansiär
KK-stiftelsen, 2012/0319Tillgänglig från: 2018-09-20 Skapad: 2018-08-27 Senast uppdaterad: 2018-09-20Bibliografiskt granskad
Delarbeten
1. Relationships between golf swing kinematics and driver performance in elite golfers
Öppna denna publikation i ny flik eller fönster >>Relationships between golf swing kinematics and driver performance in elite golfers
(Engelska)Manuskript (preprint) (Övrigt vetenskapligt)
Abstract [en]

Swing kinematics and driver performance are considered important factors in golf performance. In golf research clubhead speed (CHS) is commonly used as the driver performance measure, whereas carry distance (CD) is less investigated and together with final ball position determine the success of a drive. The aim of this study was to investigate which kinematic factors of the pelvis, thorax, and lead arm explain CHS and/or CD. Swing kinematics data on 15 elite golfers were collected using an electromagnetic 3-D system and a doppler-radar launch monitor system. Variables that emerged as important for both CHS and CD were: reduced pelvis rotation top of backswing (TOB); reduced X-factor TOB; and more thorax lateral bend TOB, along with greater thorax peak speed during the downswing. Variables that were distinctive for the CHS model were mainly during the downswing: greater X-factor stretch; and higher pelvis peak speed. Finally, factors distinctive to the regression model for CD were: reduced thorax rotation; and greater thorax lateral bend. Implications from the results suggest whilst greater peak pelvis speed and x-factor stretch effect CHS they do not significantly influence CD. Likewise, the variables unique to CD do not significantly influence CHS but may be a technical attributes which allow for more optimal clubhead delivery leading to improved CD.

Nyckelord
Clubhead speed, biomechanics, driving distance, golf performance
Nationell ämneskategori
Idrottsvetenskap
Identifikatorer
urn:nbn:se:hh:diva-37788 (URN)
Forskningsfinansiär
KK-stiftelsen, 2012/0319
Anmärkning

As manuscript in thesis

Tillgänglig från: 2018-08-27 Skapad: 2018-08-27 Senast uppdaterad: 2018-08-30Bibliografiskt granskad
2. Effects of nine weeks isokinetic training on power, golf kinematics, and driver performance in pre-elite golfers
Öppna denna publikation i ny flik eller fönster >>Effects of nine weeks isokinetic training on power, golf kinematics, and driver performance in pre-elite golfers
2017 (Engelska)Ingår i: BMC Sports Science, Medicine and Rehabilitation, ISSN 2052-1847, Vol. 9, artikel-id 21Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

Background

It has previously been shown that isotonic strength training can improve driver performance among golfers, though few studies have investigated effects of strength training on swing kinematics together with driver performance. In this study we investigated whether isokinetic rotational training could improve driver performance and swing kinematic variables amongst elite golfers.

Methods

Twenty competitive pre-elite golfers (handicap better than −3.0), 13 men and 7 women, were split into two groups, one group received the isokinetic power training (IK) alongside their normal isotonic pre-season strength-training and the other group continued with their normal isotonic pre-season strength-training regime (IT). The IK group completed 12 sessions of isokinetic power training on a standing rotation exercise (10% body weight at 1 m/s) and barbell squat (25 kg plus 10% body weight at 0.5 m/s). The IT group continued with their normal isotonic pre-season strength-training regime. Participants were tested for rotational power, lower body power, golf swing kinematics, and driver performance before and after a nine-week training period.

Results

After the nine-week training period both the IK and the IT groups increased their dominant side rotational force and power (effect sizes between 0.50–0.96) and magnitude based inference indicated that IK had a likely (> 80%) more beneficial increase in dominant side rotational force and power. For swing kinematics, IK had a likely (> 80%) more beneficial improvement in lead arm speed and acceleration compared to the IT group. For driver performance, IK had a possible (65%) beneficial effect on ball speed and likely (78%) beneficial effect on carry distance when compared to IT, whereas neither of the groups improved club head speed.

Conclusion

In the present study on pre-elite golfers we found that 9 weeks of isokinetic training increased seated rotational force and power, peak arm speed and arm acceleration, ball speed, and carry distance more compared to isotonic training. Even though isokinetic training did not increase CHS, it did result in greater carry distance. © The Author(s). 2017

Ort, förlag, år, upplaga, sidor
London: BioMed Central, 2017
Nyckelord
Golf biomechanics, Isokinetic training, PowerDriver performance, Kinematics, Performance gains
Nationell ämneskategori
Annan naturvetenskap Idrottsvetenskap
Identifikatorer
urn:nbn:se:hh:diva-35843 (URN)10.1186/s13102-017-0086-9 (DOI)000417565100002 ()29238597 (PubMedID)2-s2.0-85037710214 (Scopus ID)
Projekt
KK-HÖG projekt successful injury-free golf
Forskningsfinansiär
KK-stiftelsen, 2012/0319
Tillgänglig från: 2017-12-13 Skapad: 2017-12-13 Senast uppdaterad: 2018-10-29Bibliografiskt granskad

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