Regulation of reaction forces during the golf swing

McNitt-Gray, Jill L.; Munaretto, Joseph M.; Zaferiou, Antonia M.; Requejo, Philip S.; Flashner, Henryk

doi:10.1080/14763141.2012.738699

Cited by 25 publications

(20 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Surprisingly, most dancers maintained or decreased the RFh magnitude at the push leg. These results are contrary to the RFh regulation strategy used during the golf swing, during which, increased rotation demands were satisfied by increasing the magnitude of the RFh of one or both legs (McNitt-Gray et al, 2013). However, the RFh redirection strategy may be advantageous in order to limit unwanted linear impulse while increasing sinθ to generate more angular impulse.…”

Section: Role Of Each Leg To Increase Angular Impulse Generatedmentioning

confidence: 64%

“…In a cutting maneuver with increased rotational demands, as moment of inertia about a vertical axis increased, the horizontal reaction force (RFh) did not change direction relative to the support leg and the RFh magnitude perpendicular to the CM advancement direction generally increased when the phase duration was similar (Qiao, Brown, & Jindrich, 2014). Additionally, in the golf swing, increases in rotation requirements were satisfied by increasing the magnitude of the RFh at one or both legs (McNitt-Gray et al, 2013). In the case of the piqué turn performed with increased rotational demands, the RFh of each leg could increase, yet be coordinated so that the net linear impulse is aligned with the desired lateral trajectory of the CM.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Modification of impulse generation during piqué turns with increased rotational demands

Zaferiou

Wilcox

McNitt-Gray

2016

Human Movement Science

View full text Add to dashboard Cite

During initiation of a piqué turn, a dancer generates impulse to achieve the desired lateral translation and whole-body rotation. The goal of this study was to determine how individuals regulate impulse generation when initiating piqué turns with increased rotational demands. Skilled dancers (n=10) performed single (∼360°) and double (∼720°) piqué turns from a stationary position. Linear and angular impulse generated by the push and turn legs were quantified using ground reaction forces and compared across turn conditions as a group and within a dancer using probability-based statistical methods. The results indicate that as the rotation demands of the piqué turn increased, the net angular impulse generated increased whereas net lateral impulse decreased. Early during turn initiation, the free moment contributed to angular impulse generation. Later during turn initiation, horizontal reaction forces were controlled to generate angular impulse. As rotational demands increased, the moment applied increased primarily from redirection of the horizontal reaction force (RFh) at the push leg and a combination of RFh magnitude and moment arm increases at the turn leg. RFh at each leg were coordinated to limit unwanted net linear impulse. Knowledge of observed subject-specific mechanisms is important to inform the design of turning performance training tools.

show abstract

Section: Role Of Each Leg To Increase Angular Impulse Generatedmentioning

confidence: 64%

Section: Introductionmentioning

confidence: 99%

Modification of impulse generation during piqué turns with increased rotational demands

Zaferiou

Wilcox

McNitt-Gray

2016

Human Movement Science

View full text Add to dashboard Cite

show abstract

“…Previous golf studies typically take place in controlled laboratories with shots taken into a net from a flat surface1,2,3,4 whilst kinematic and kinetic data are collected. 4,5,6,7 Such studies have provided useful insight into the mechanics and performance of the golf swing, and have shown that centre of pressure (COP) motion (weight transfer) during the golf swing has strong correlations with the production of club head velocity. 8,9,10 However, golf courses are variable environments, where conditions can change from shot to shot.…”

Section: Introductionmentioning

confidence: 99%

The Effect of Uphill and Downhill Slopes on Weight Transfer, Alignment, and Shot Outcome in Golf

Blenkinsop

Liang

Gallimore

et al. 2018

Journal of Applied Biomechanics

View full text Add to dashboard Cite

The aim of the study was to examine changes in weight transfer, alignment, and shot outcome during golf shots from flat, uphill, and downhill slopes. Twelve elite male golfers hit 30 shots with a 6-iron from a computer-assisted rehabilitation environment used to create 5° slopes while collecting 3-dimensional kinematics and kinetics of the swing. A launch monitor measured performance outcomes. A shift in the center of pressure was found throughout the swing when performed on a slope, with the mean position moving approximately 9% closer to the lower foot. The golfers attempted to remain perpendicular to the slope, resulting in weight transfer toward the lower foot. The golfers adopted a wider stance in the sloped conditions and moved the ball toward the higher foot at address. Ball speed was not significantly affected by the slope, but launch angle and ball spin were. As the coaching literature predicted, golfers were more likely to hit shots to the left from an uphill slope and to the right from a downhill slope. No consistent compensatory adjustments in alignment at address or azimuth were found, with the change in final shot dispersion resulting from the lateral spin of the ball.

show abstract

“…Total distance is the most important variable when assessing the driver performance (Okuda & Armstrong, 2002). All of the factors leading up to ball contact are extremely vital to acquire maximum distance, so the second shot can be precise with higher club selection (McNitt-Gray et al, 2013). As the club face loft increased from 9.5° to 13°, the total distance ultimately decreased, while there was not a significant difference in club head speed and ball speed.…”

Section: Discussionmentioning

confidence: 99%

The Effect of Static Club Head Loft of a Driver on Golf Ball Launch Variables and Distance

Knight¹,

Lamberth²,

Galloway³

et al. 2014

International Journal of Golf Science

View full text Add to dashboard Cite

The driver is the club which receives the greatest scrutiny by golfers and the most marketing efforts by manufacturers. One characteristic often indicated and believed to effect driver performance is the degree of loft on the clubface. The purpose of the current study was to investigate the effect that the loft of a driver and gender has on golf ball launch variables and distance. The variables that were examined included club head speed, ball speed, launch angle, descent (impact) angle, total spin, carry, and total distance. Fifteen participants (12 male, 3 female) with a handicap of eight or lower were used to test three different degree drivers (9.5°, 10.5°, and 13°) on the variables listed above. Participants performed ten tested swings for each driver and the variables were measured. The data were analyzed with a two (gender) by three (club face loft) repeated-measures ANOVA. There were significant differences (p < .05) in total spin rate, descent angle, and total distance between the clubs. The male participants produced significantly greater values for the variables of club head speed, ball speed, descent angle, carry, and total distance when compared with the female participants. For the current study, the main finding was that the low lofted driver produced the greatest amount of total distance, 234.95 meters, compared with 226.57 meters for the high lofted driver and 232.58 meters for the medium lofted driver. This is likely due to the low lofted driver producing a lower total spin rate and descent angle than the medium and high lofted driver, resulting in a greater amount of run and total distance for the low lofted driver.

show abstract

Regulation of reaction forces during the golf swing

Cited by 25 publications

References 12 publications

Modification of impulse generation during piqué turns with increased rotational demands

Modification of impulse generation during piqué turns with increased rotational demands

The Effect of Uphill and Downhill Slopes on Weight Transfer, Alignment, and Shot Outcome in Golf

The Effect of Static Club Head Loft of a Driver on Golf Ball Launch Variables and Distance

Contact Info

Product

Resources

About