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Effects of nine weeks isokinetic training on power, golf kinematics, and driver performance in pre-elite golfers
Halmstad University, School of Business, Engineering and Science, The Rydberg Laboratory for Applied Sciences (RLAS). Scandinavian College of Sport, Gothenburg, Sweden. (Biosystem)ORCID iD: 0000-0003-1184-5036
Halmstad University, School of Business, Engineering and Science.
Halmstad University, School of Business, Engineering and Science. Swedish Golf Federation, Stockholm, Sweden.
Halmstad University, School of Business, Engineering and Science, The Rydberg Laboratory for Applied Sciences (RLAS). (Biosystem)ORCID iD: 0000-0002-9337-5113
2017 (English)In: BMC Sports Science, Medicine and Rehabilitation, ISSN 2052-1847, Vol. 9, article id 21Article in journal (Refereed) 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

Place, publisher, year, edition, pages
London: BioMed Central, 2017. Vol. 9, article id 21
Keywords [en]
Golf biomechanics, Isokinetic training, PowerDriver performance, Kinematics, Performance gains
National Category
Other Natural Sciences Sport and Fitness Sciences
Identifiers
URN: urn:nbn:se:hh:diva-35843DOI: 10.1186/s13102-017-0086-9ISI: 000417565100002PubMedID: 29238597Scopus ID: 2-s2.0-85037710214OAI: oai:DiVA.org:hh-35843DiVA, id: diva2:1165842
Projects
KK-HÖG projekt successful injury-free golf
Funder
Knowledge Foundation, 2012/0319Available from: 2017-12-13 Created: 2017-12-13 Last updated: 2018-10-29Bibliographically approved
In thesis
1. A multi-disciplinary approach to studying performance among high-level golfers: physiological and biomechanical aspects
Open this publication in new window or tab >>A multi-disciplinary approach to studying performance among high-level golfers: physiological and biomechanical aspects
2018 (English)Licentiate thesis, comprehensive summary (Other academic)
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.

Place, publisher, year, edition, pages
Halmstad: Halmstad University Press, 2018. p. 73
Series
Halmstad University Dissertations ; 49
Keywords
Carry distance, clubhead speed, driver performance, golf kinematics, sports performance, strength training, isokinetic training
National Category
Sport and Fitness Sciences
Identifiers
urn:nbn:se:hh:diva-37792 (URN)978-91-88749-02-4 (ISBN)978-91-88749-03-1 (ISBN)
Presentation
2018-09-18, O125, Högskolan i Halmstad, Halmstad, 09:00 (English)
Opponent
Supervisors
Funder
Knowledge Foundation, 2012/0319
Available from: 2018-09-20 Created: 2018-08-27 Last updated: 2018-09-20Bibliographically approved

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Parker, JamesHellström, JohnOlsson, Charlotte M.

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