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Little, T. Williams, A.G. (2005) Specificity of acceleration, maximum speed and agility in professional soccer players.

High-speed actions such as acceleration, maximal speed and agility are important in soccer performance. These factors were found to be relatively unrelated to one another. These findings suggest that specific testing and training regimens should be implemented for these different high-speed actions. Specificity in the direction and magnitude of horizontal force are important considerations here. […]

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Cronin JB & Hansen KT (2005) Strength and power predictors of sports speed.

Power tests (squat and countermovement jump) are correlated with the three speed measures; quickness, acceleration and maximal speed in sprint running. Measures of 3 RM (Repetition Max) and isokinetic testing (different velocities) of knee flexion and extension were not found to be correlated with the three speed measures. This is not surprising considering the principle […]

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Marcovic G (2007) Poor relationship between strength and power qualities and agility performance.

Six tests of leg extensor strength and power were obtained. They all focused on the ability to generate force vertically. When these measures then were compared to agility performance (single and multiple correlation) no to weak relationships were established. The authors consequently call for a more specific and functional approach to testing. One important consideration […]

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Brughelli, M., Cronin, J., Levin, G., Chaoachi, A. (2008) Understanding change of direction ability in sport, a review of resistance training studies.

Strength and power training programs that focus on exercises performed bilaterally and in the vertical direction have mostly failed to improve change of direction performance. On the contrary training protocols that have utilized exercises that mimic change of direction, the ability to generate force in the horizontal direction, have had positive results on change of […]

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Harrison, AJ. Bourke, G. (2009) The effect of resisted sprint training on speed and strength performance in male rugby players.

Resisted training with a horizontal load has positive effects on sprint performance in professional and semiprofessional rugby players. Resisted sprint training with a constant load (13% of body weight) yielded positive effects on a number of factors, with the most important being an improved acceleration from a static start. These are important findings considering that […]

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Frost DM, Cronin J & Newton RU (2010) A biomechanical evaluation of resistance: fundamental concepts for training and sports performance.

Researchers, trainers and clinicians have all suggested that to facilitate the greatest improvements to athletic performance, the resistance-training programme employed by an athlete must be adapted to meet the specific demands of their sport. Therefore, it is conceivable that one mechanical stimulus, or resistance type, may not be appropriate for all applications. Traditional free-, weight […]

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