An Insight into Coaches' Knowledge and Use of Sprinting Drills to Improve Sprinting Technique and Performance An Insight into Coaches' Knowledge and Use of Sprinting Drills to Improve Sprinting Technique and Performance (original) (raw)
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Journal of Strength and Conditioning Research, 2013
This study investigated the effects of a traditional speed and agility training program (TSA), and an enforced stopping program emphasizing deceleration (ESSA). Twenty college-aged team sport athletes (16 males, 4 females) were allocated into the training groups. Pre-and post-testing included: 0-10, 0-20, 0-40 m sprint intervals, change-of-direction and acceleration test (CODAT), T-test (multidirectional speed); vertical, standing broad, lateral, and drop jumps, medicine ball throw (power); Star Excursion Balance Test (posteromedial, medial, anteromedial reaches; dynamic stability); and concentric (240°/s) and eccentric (30°/s) knee extensor and flexor isokinetic testing (unilateral strength). Both groups completed a six-week speed and agility program. The ESSA subjects decelerated to a stop within a specified distance in each drill. A repeated measures analysis of variance determined significant (p < 0.05) within-and between-group changes. Effect sizes (Cohen's d) were calculated. The TSA group improved all speed tests (ES = 0.29-0.96), and most power tests (d = 0.57-1.10). The ESSA group improved the 40-m sprint, CODAT, T-test, and most power tests (d = 0.46-1.31), but did not significantly decrease 0-10 and 0-20 m times. The TSA group increased posteromedial and medial excursions (d = 0.97-1.89); the ESSA group increased medial excursions (d = 0.99-1.09). The ESSA group increased concentric knee extensor and flexor strength, but also increased between-leg knee flexor strength differences (d = 0.50-1.39). The loading associated with stopping can increase unilateral strength.
The Effects of Traditional and Enforced Stopping.7
Lockie, RG, Schultz, AB, Callaghan, SJ, and Jeffriess, MD. The effects of traditional and enforced stopping speed and agility training on multidirectional speed and athletic function. J Strength Cond Res 28 : 1538-1551, 2014-This study investigated the effects of a traditional speed and agility training program (TSA) and an enforced stopping program emphasizing deceleration (ESSA). Twenty college-aged team sport athletes (16 males, 4 females) were allocated into the training groups. Pretesting and posttesting included: 0-10, 0-20, 0-40 m sprint intervals, change-of-direction, and acceleration test (CODAT), T-test (multidirectional speed); vertical, standing broad, lateral, and drop jumps, medicine ball throw (power); Star Excursion Balance Test (posteromedial, medial, anteromedial reaches; dynamic stability); and concentric (2408$s -1 ) and eccentric (308$s 21 ) knee extensor and flexor isokinetic testing (unilateral strength). Both groups completed a 6-week speed and agility program. The ESSA subjects decelerated to a stop within a specified distance in each drill. A repeated measures analysis of variance determined significant (p # 0.05) withinand between-group changes. Effect sizes (Cohen's d) were calculated. The TSA group improved all speed tests (d = 0.29-0.96), and most power tests (d = 0.57-1.10). The ESSA group improved the 40-m sprint, CODAT, T-test, and most power tests (d = 0.46-1.31) but did not significantly decrease 0-10 and 0-20 m times. The TSA group increased posteromedial and medial excursions (d = 0.97-1.89); the ESSA group increased medial excursions (d = 0.99-1.09). The ESSA group increased concentric knee extensor and flexor strength, but also increased between-leg knee flexor strength differences (d = 0.50-1.39). The loading associated with stopping can increase unilateral strength. Coaches should ensure deceleration drills allow for appropriate sprint distances before stopping, and athletes do not favor 1 leg for stopping after deceleration.
A Novel Training Tool for Batters to ‘Watch the Ball’
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The mantra to 'watch the ball'is one of the most fundamental and often-heard instructions in the game, but are coaches actually able to coach it? This presentation will address a series of studies which have examined the role of vision in cricket batting, and in particular how good vision must be for successful batting, and the role of implicit visual skills in the development of expertise in batting. As a result of these studies, a novel training tool will be proposed to implicitly enhance the concentration of skilled cricket batters.
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A Batting Skills Test to Assist the Development of Elite Cricketers
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