Association between the On-Plane Angular Motions of the Axle-Chain System and Clubhead Speed in Skilled Male Golfers

Autor: Kevin A. Becker, Young-Hoo Kwon, Morgan V. Madrid, Noelle J. Tuttle, Marco Avalos, Nicholas A Levine
Jazyk: angličtina
Rok vydání: 2020
Předmět:
business.product_category
0206 medical engineering
Geometry
Angular velocity
02 engineering and technology
transition phase
Rotation
lcsh:Technology
delayed release
lcsh:Chemistry
03 medical and health sciences
Physics::Popular Physics
0302 clinical medicine
Circular motion
General Materials Science
double pendulum
Instrumentation
lcsh:QH301-705.5
Computer Science::Databases
Mathematics
Fluid Flow and Transfer Processes
Lever
Angular displacement
lcsh:T
Process Chemistry and Technology
General Engineering
030229 sport sciences
Swing
kinematic sequences
020601 biomedical engineering
Wedge (mechanical device)
lcsh:QC1-999
Computer Science Applications
lcsh:Biology (General)
lcsh:QD1-999
lcsh:TA1-2040
Line (geometry)
business
lcsh:Engineering (General). Civil engineering (General)
human activities
lcsh:Physics
Zdroj: Applied Sciences, Vol 10, Iss 5728, p 5728 (2020)
Applied Sciences
Volume 10
Issue 17
ISSN: 2076-3417
Popis: The on-plane rotations of the inclined axle-chain system on the functional swing plane (FSP) can represent the angular motions of the golfer&ndash
club system closely. The purpose of this study was to identify key performance factors in golf through a comprehensive investigation of the association between the angular motion characteristics of the axle-chain system and clubhead speed in skilled golfers. Sixty-six male golfers (handicap &le
3) performed full-effort shots in three club conditions: driver, 5-iron, and pitching wedge. Swing trials were captured with an optical motion capture system, and the hip/shoulder lines, upper lever, club, and wrist angular positions/velocities were calculated. Time, angular position, range of rotation, and peak angular velocity parameters were extracted and their correlation coefficients (Pearson and Spearman) to actual and normalized clubhead speeds were computed (p <
0.05). Higher clubhead speed was associated with shorter downswing phases, larger rotation ranges (hip/shoulder lines, and upper lever), larger hip&ndash
shoulder separation at impact, delayed transitions (hip line and upper lever), faster rotations (backswing, downswing, and impact), and larger angular velocity losses (hip line and upper lever) with additional club- and body-specific correlations. Clubhead speed was not well associated with wrist cock angles/ranges, X-factors/stretches, and timings of the downswing peak.
Databáze: OpenAIRE
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