Journal
JOURNAL OF SPORTS SCIENCES
Volume 40, Issue 1, Pages 104-115Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/02640414.2021.1976494
Keywords
Anthropometrics; ground reaction forces; kinematic; lower-body; strength
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The study revealed that a kicker's lower limb strength and body motion significantly influence their range, particularly body position and center-of-mass height during kicking. This emphasizes the importance of considering a kicker's physical characteristics and three-dimensional motion to understand kicking range.
The aim of this study was to understand how a place kicker's range is limited by their approach to the ball and their physical characteristics. Thirty-three kickers performed maximal place kicks and vertical jumps in a laboratory. Whole-body motion and ground reaction forces during the approach phase of the kicks, jump performance and anthropometric measurements of those whose predicted maximum distance was limited by range (n = 17) rather than accuracy were analysed. Principal component analysis (PCA) reduced the number of variables considered before stepwise regression analyses assessed variance in place kick maximum distance and associated criteria. Four components, explaining 94% of the variance in maximum distance, were extracted from the PCA: width of approach, anterior-posterior body position, centre-of-mass height and lower limb strength. Lower limb strength was a significant predictor of both kicking foot velocity (R-2 = 0.55, p = 0.001) and ball velocity magnitude (R-2 = 0.57, p < 0.001). However, maximum distance was determined by body position during the approach (antero-posterior position, R-2 = 0.52, p = 0.001 and centre-of-mass height, R-2 = 0.12, p = 0.049). This highlights the importance of considering three-dimensional motion of the kicker alongside their physical capabilities to understand place kicking range.
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