scholarly journals Effects Of Chronic Bicarbonate Supplementation On Kicking Performance In Highly Trained Taekwondo Athletes

2020 ◽  
Vol 52 (7S) ◽  
pp. 661-661
Author(s):  
Gloria Velasquez ◽  
Oscar Cajbon ◽  
Manuel Alvarez ◽  
Tanuj Wadhi ◽  
Luis del Valle
Keyword(s):  
Kicking Performance

Effects of kicking, performance and drag during draft swimming in elite triathletes

1999 ◽  
Vol 24 (1) ◽  
pp. 209-216
Author(s):  
Grégoire Millet ◽  
J.-C. Chatard ◽  
D. CHOLLET
Keyword(s):  
Kicking Performance

scholarly journals Understanding key constraints and practice design in Rugby Union place kicking: Experiential knowledge of professional kickers and experienced coaches

2020 ◽  
Vol 15 (5-6) ◽  
pp. 631-641
Author(s):  
Chris Pocock ◽  
Neil E Bezodis ◽  
Keith Davids ◽  
Ross Wadey ◽  
Jamie S North
Keyword(s):  
Sport Performance ◽  
Rugby Union ◽  
Experiential Knowledge ◽  
Environmental Constraints ◽  
Competitive Performance ◽  
Task Constraints ◽  
Performance Time ◽  
Quantitative Studies ◽  
Simulated Game ◽  
Kicking Performance

Place kicks present valuable opportunities to score points in Rugby Union, which are typically performed under varying constraints in competitive performance environments. Previous quantitative studies suggest these interacting constraints can influence fluctuations in place kick success. To further the understanding of how fluctuations in place kicking success emerge, our aim was twofold: i) to explore and identify the key constraints that professional place kickers and experienced place kicking coaches perceive to influence the difficulty of a place kick and ii) to understand the level to which current place kicking practice environments represent these key constraints experienced in performance environments. Six professional place kickers and six experienced place kicking coaches were interviewed. Using a deductive thematic analysis, 11 key constraints were identified: individual constraints of expectation for success and fatigue, task constraints of angle and distance to goalposts, environmental constraints of wind, weather, pitch, and crowd, and situational constraints of previous kicking performance, time remaining and current score margin. Place kicking is typically practised individually or with a small number of place kickers in isolation from team sessions. Where possible, coaches should be encouraged to include place kicking in simulated game scenarios during practice to represent key constraints from performance environments. Our study demonstrates how experiential knowledge can enrich the understanding of sport performance and inform the design of practice environments which simulate relevant constraints of competitive performance to enhance skill adaptation of athletes.

The acute effects of graded physiological strain on soccer kicking performance: a randomized, controlled cross-over study

2015 ◽  
Vol 116 (2) ◽  
pp. 373-382 ◽  
Author(s):  
Ivan Radman ◽  
Barbara Wessner ◽  
Norbert Bachl ◽  
Lana Ruzic ◽  
Markus Hackl ◽  
...  
Keyword(s):  
Acute Effects ◽  
Physiological Strain ◽  
Randomized Controlled ◽  
Kicking Performance

Effects of weight lifting training combined with plyometric exercises on physical fitness, body composition, and knee extension velocity during kicking in football

2008 ◽  
Vol 33 (3) ◽  
pp. 501-510 ◽  
Author(s):  
Jorge Perez-Gomez ◽  
Hugo Olmedillas ◽  
Safira Delgado-Guerra ◽  
Ignacio Ara Royo ◽  
German Vicente-Rodriguez ◽  
...  
Keyword(s):  
Body Composition ◽  
Physical Fitness ◽  
Myosin Heavy Chain ◽  
Heavy Chain ◽  
Vertical Jump ◽  
Anaerobic Capacity ◽  
Weight Lifting ◽  
Control Group ◽  
Type I ◽  
Kicking Performance

The effects of a training program consisting of weight lifting combined with plyometric exercises on kicking performance, myosin heavy-chain composition (vastus lateralis), physical fitness, and body composition (using dual-energy X-ray absorptiometry (DXA)) was examined in 37 male physical education students divided randomly into a training group (TG: 16 subjects) and a control group (CG: 21 subjects). The TG followed 6 weeks of combined weight lifting and plyometric exercises. In all subjects, tests were performed to measure their maximal angular speed of the knee during instep kicks on a stationary ball. Additional tests for muscle power (vertical jump), running speed (30 m running test), anaerobic capacity (Wingate and 300 m running tests), and aerobic power (20 m shuttle run tests) were also performed. Training resulted in muscle hypertrophy (+4.3%), increased peak angular velocity of the knee during kicking (+13.6%), increased percentage of myosin heavy-chain (MHC) type IIa (+8.4%), increased 1 repetition maximum (1 RM) of inclined leg press (ILP) (+61.4%), leg extension (LE) (+20.2%), leg curl (+15.9%), and half squat (HQ) (+45.1%), and enhanced performance in vertical jump (all p ≤ 0.05). In contrast, MHC type I was reduced (–5.2%, p ≤ 0.05) after training. In the control group, these variables remained unchanged. In conclusion, 6 weeks of strength training combining weight lifting and plyometric exercises results in significant improvement of kicking performance, as well as other physical capacities related to success in football (soccer).

scholarly journals Isokinetic Strength of Rotators, Flexors and Hip Extensors is Strongly Related to Front Kick Dynamics in Military Professionals

2019 ◽  
Vol 68 (1) ◽  
pp. 145-155
Author(s):  
Michal Vagner ◽  
Jan Malecek ◽  
Luboš Tomšovský ◽  
Petr Kubový ◽  
Andrea Levitova ◽  
...  
Keyword(s):  
Lower Limb ◽  
Impact Force ◽  
Isokinetic Dynamometry ◽  
Main Condition ◽  
Impact Forces ◽  
Hip Flexion ◽  
Limb Flexion ◽  
Hip Rotation ◽  
Kicking Performance ◽  
Flexion And Extension

AbstractAchieving the maximum possible impact force of the front kick can be related to the isokinetic lower limb muscle strength. Therefore, we aimed to determine the regression model between kicking performance and the isokinetic peak net moment of hip rotators, flexors, and hip extensors and flexors at various speeds of contraction. Twenty-five male soldiers (27.7 ± 7.2 yrs, 83.8 ± 6.1 kg, 180.5 ± 6.5 cm) performed six barefoot front kicks, where impact forces (N) and kick velocity (m∙s-1) were measured. The 3D kinematics and isokinetic dynamometry were used to estimate the kick velocity, isokinetic moment of kicking lower limb hip flexors and extensors (60, 120, 240, 300°∙s-1), and stance lower limb hip internal and external rotators (30, 90°∙s-1). Multiple regression showed that a separate component of the peak moment concentric hip flexion and extension of the kicking lower limb at 90°∙s-1 can explain 54% of the peak kicking impact force variance (R2 = 0.54; p < 0.001). When adding the other 3 components of eccentric and concentric hip internal and external rotations at 30°∙s-1, the internal and external hip rotation ratios at 30°∙s-1 on the stance limb and the concentric ratio of kicking limb flexion and extension at 300°∙s-1 that explained the variance of impact force were 75% (p = 0.003). The explosive strength of kicking limb hip flexors and extensors is the main condition constraint for kicking performance. The maximum strength of stance limb internal and external rotators and speed strength of kicking limb hip flexors and extensors are important constraints of kicking performance that should be considered to improve the front kick efficiency.

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