The Experts below are selected from a list of 1395 Experts worldwide ranked by ideXlab platform
Timothy E Hewett - One of the best experts on this subject based on the ideXlab platform.
-
the effects of plyometric vs dynamic stabilization and balance training on power balance and landing force in female athletes
Journal of Strength and Conditioning Research, 2006Co-Authors: Gregory D Myer, Kevin R Ford, Jensen L Brent, Timothy E HewettAbstract:Myer, G.D., K.R. Ford, J.L. Brent, and T.E. Hewett. The effects of plyometric vs. dynamic stabilization and balance training on power, balance, and landing force in female athletes. J. Strength Cond. Res. 20(2): 345-353. 2006.-Neuromuscular training protocols that include both Plyometrics and dynamic balance exercises can significantly improve biomechanics and neuromuscular performance and reduce anterior cruciate ligament injury risk in female athletes. The purpose of this study was to compare the effects of Plyometrics (PLYO) versus dynamic stabilization and balance training (BAL) on power, balance, strength, and landing force in female athletes. Either PLYO or BAL were included as a component of a dynamic neuromuscular training regimen that reduced measures related to ACL injury and increased measures of performance. Nineteen high school female athletes participated in training 3 times a week for 7 weeks. The PLYO (n = 8) group did not receive any dynamic balance exercises and the BAL (n = 11) group did not receive any maximum effort jumps during training. Pretraining vs. posttraining measures of impact force and standard deviation of center of pressure (COP) were recorded during a single leg hop and hold. Subjects were also tested for training effects in strength (isokinetic and isoinertial) and power (vertical jump). The percent change from pretest to posttest in vertical ground reaction force was significantly different between the BAL and PLYO groups on the dominant side (p < 0.05). Both groups decreased their standard deviation of center of pressure (COP) during hop landings in the medial/lateral direction on their dominant side, which equalized pretested side to side differences. Both groups increased hamstrings strength and vertical jump. The results of this study suggest that both PLYO and BAL training are effective at increasing measures of neuromuscular power and control. A combination of PLYO and BAL training may further maximize the effectiveness of preseason training for female athletes.
-
the effects of plyometric versus dynamic stabilization and balance training on lower extremity biomechanics
American Journal of Sports Medicine, 2006Co-Authors: Gregory D Myer, Kevin R Ford, Timothy E Hewett, Scott G McleanAbstract:BackgroundNeuromuscular training that includes both plyometric and dynamic stabilization/balance exercises alters movement biomechanics and reduces ACL injury risk in female athletes. The biomechanical effects of plyometric and balance training utilized separately are unknown.HypothesisA protocol that includes balance training without plyometric training will decrease coronal plane hip, knee, and ankle motions during landing, and plyometric training will not affect coronal plane measures. The corollary hypothesis was that plyometric and balance training effects on knee flexion are dependent on the movement task tested.Study DesignControlled laboratory study.MethodsEighteen high school female athletes participated in 18 training sessions during a 7-week period. The plyometric group (n= 8) performed maximum-effort jumping and cutting exercises, and the balance group (n = 10) used dynamic stabilization/ balance exercises during training. Lower extremity kinematics were measured during the drop vertical jump ...
-
the effects of plyometric versus dynamic stabilization and balance training on lower extremity biomechanics
American Journal of Sports Medicine, 2006Co-Authors: Gregory D Myer, Kevin R Ford, Timothy E Hewett, Scott G McleanAbstract:BackgroundNeuromuscular training that includes both plyometric and dynamic stabilization/balance exercises alters movement biomechanics and reduces ACL injury risk in female athletes. The biomechanical effects of plyometric and balance training utilized separately are unknown.HypothesisA protocol that includes balance training without plyometric training will decrease coronal plane hip, knee, and ankle motions during landing, and plyometric training will not affect coronal plane measures. The corollary hypothesis was that plyometric and balance training effects on knee flexion are dependent on the movement task tested.Study DesignControlled laboratory study.MethodsEighteen high school female athletes participated in 18 training sessions during a 7-week period. The plyometric group (n= 8) performed maximum-effort jumping and cutting exercises, and the balance group (n = 10) used dynamic stabilization/ balance exercises during training. Lower extremity kinematics were measured during the drop vertical jump ...
Olaf Prieske - One of the best experts on this subject based on the ideXlab platform.
-
effectiveness of traditional strength vs power training on muscle strength power and speed with youth a systematic review and meta analysis
Frontiers in Physiology, 2017Co-Authors: David G Behm, James D Young, Joseph H D Whitten, Jonathan C Reid, Patrick J Quigley, Jonathan L Low, Camila D Lima, Daniel D Hodgson, Anis Chaouachi, Olaf PrieskeAbstract:Numerous national associations and multiple reviews have documented the safety and efficacy of strength training for children and adolescents. The literature highlights the significant training-induced increases in strength associated with youth strength training. However, the effectiveness of youth strength training programs to improve power measures is not as clear. This discrepancy may be related to training and testing specificity. Most prior youth strength training programs emphasized lower intensity resistance with relatively slow movements. Since power activities typically involve higher intensity, explosive-like contractions with higher angular velocities (e.g., Plyometrics), there is a conflict between the training medium and testing measures. This meta-analysis compared strength (e.g., training with resistance or body mass) and power training programs (e.g., plyometric training) on proxies of muscle strength, power, and speed. A systematic literature search using a Boolean Search Strategy was conducted in the electronic databases PubMed, SPORT Discus, Web of Science, and Google Scholar and revealed 652 hits. After perusal of title, abstract, and full text, 128 studies were eligible for inclusion in this systematic review and meta-analysis. The meta-analysis showed small to moderate magnitude changes for training specificity with jump measures. In other words, power training was more effective than strength training for improving youth jump height. For sprint measures, strength training was more effective than power training with youth. Furthermore, strength training exhibited consistently large magnitude changes to lower body strength measures, which contrasted with the generally trivial, small and moderate magnitude training improvements of power training upon lower body strength, sprint and jump measures, respectively. Maturity related inadequacies in eccentric strength and balance might influence the lack of training specificity with the unilateral landings and propulsions associated with sprinting. Based on this meta-analysis, strength training should be incorporated prior to power training in order to establish an adequate foundation of strength for power training activities.
Ulrik Wisloff - One of the best experts on this subject based on the ideXlab platform.
-
effect of plyometric training on sand versus grass on muscle soreness and jumping and sprinting ability in soccer players
British Journal of Sports Medicine, 2007Co-Authors: Franco M Impellizzeri, Ermanno Rampinini, Carlo Castagna, F Martino, S Fiorini, Ulrik WisloffAbstract:Objective: The lower impact on the musculoskeletal system induced by plyometric exercise on sand compared to a firm surface might be useful to reduce the stress of intensified training periods or during rehabilitation from injury. The aim of this study was to compare the effects of plyometric training on sand versus a grass surface on muscle soreness, vertical jump height and sprinting ability. Design: Parallel two-group, randomised, longitudinal (pretest−post-test) study. Methods: After random allocation, 18 soccer players completed 4 weeks of plyometric training on grass (grass group) and 19 players on sand (sand group). Before and after plyometric training, 10 m and 20 m sprint time, squat jump (SJ), countermovement jump (CMJ), and eccentric utilization ratio (CMJ/SJ) were determined. Muscle soreness was measured using a Likert scale. Results: No training surface × time interactions were found for sprint time (p>0.87), whereas a trend was found for SJ (p = 0.08), with both groups showing similar improvements (p Conclusions: Plyometric training on sand improved both jumping and sprinting ability and induced less muscle soreness. A grass surface seems to be superior in enhancing CMJ performance while the sand surface showed a greater improvement in SJ. Therefore, plyometric training on different surfaces may be associated with different training-induced effects on some neuromuscular factors related to the efficiency of the stretch-shortening cycle.
David G Behm - One of the best experts on this subject based on the ideXlab platform.
-
effectiveness of traditional strength vs power training on muscle strength power and speed with youth a systematic review and meta analysis
Frontiers in Physiology, 2017Co-Authors: David G Behm, James D Young, Joseph H D Whitten, Jonathan C Reid, Patrick J Quigley, Jonathan L Low, Camila D Lima, Daniel D Hodgson, Anis Chaouachi, Olaf PrieskeAbstract:Numerous national associations and multiple reviews have documented the safety and efficacy of strength training for children and adolescents. The literature highlights the significant training-induced increases in strength associated with youth strength training. However, the effectiveness of youth strength training programs to improve power measures is not as clear. This discrepancy may be related to training and testing specificity. Most prior youth strength training programs emphasized lower intensity resistance with relatively slow movements. Since power activities typically involve higher intensity, explosive-like contractions with higher angular velocities (e.g., Plyometrics), there is a conflict between the training medium and testing measures. This meta-analysis compared strength (e.g., training with resistance or body mass) and power training programs (e.g., plyometric training) on proxies of muscle strength, power, and speed. A systematic literature search using a Boolean Search Strategy was conducted in the electronic databases PubMed, SPORT Discus, Web of Science, and Google Scholar and revealed 652 hits. After perusal of title, abstract, and full text, 128 studies were eligible for inclusion in this systematic review and meta-analysis. The meta-analysis showed small to moderate magnitude changes for training specificity with jump measures. In other words, power training was more effective than strength training for improving youth jump height. For sprint measures, strength training was more effective than power training with youth. Furthermore, strength training exhibited consistently large magnitude changes to lower body strength measures, which contrasted with the generally trivial, small and moderate magnitude training improvements of power training upon lower body strength, sprint and jump measures, respectively. Maturity related inadequacies in eccentric strength and balance might influence the lack of training specificity with the unilateral landings and propulsions associated with sprinting. Based on this meta-analysis, strength training should be incorporated prior to power training in order to establish an adequate foundation of strength for power training activities.
Gregory D Myer - One of the best experts on this subject based on the ideXlab platform.
-
the effects of plyometric vs dynamic stabilization and balance training on power balance and landing force in female athletes
Journal of Strength and Conditioning Research, 2006Co-Authors: Gregory D Myer, Kevin R Ford, Jensen L Brent, Timothy E HewettAbstract:Myer, G.D., K.R. Ford, J.L. Brent, and T.E. Hewett. The effects of plyometric vs. dynamic stabilization and balance training on power, balance, and landing force in female athletes. J. Strength Cond. Res. 20(2): 345-353. 2006.-Neuromuscular training protocols that include both Plyometrics and dynamic balance exercises can significantly improve biomechanics and neuromuscular performance and reduce anterior cruciate ligament injury risk in female athletes. The purpose of this study was to compare the effects of Plyometrics (PLYO) versus dynamic stabilization and balance training (BAL) on power, balance, strength, and landing force in female athletes. Either PLYO or BAL were included as a component of a dynamic neuromuscular training regimen that reduced measures related to ACL injury and increased measures of performance. Nineteen high school female athletes participated in training 3 times a week for 7 weeks. The PLYO (n = 8) group did not receive any dynamic balance exercises and the BAL (n = 11) group did not receive any maximum effort jumps during training. Pretraining vs. posttraining measures of impact force and standard deviation of center of pressure (COP) were recorded during a single leg hop and hold. Subjects were also tested for training effects in strength (isokinetic and isoinertial) and power (vertical jump). The percent change from pretest to posttest in vertical ground reaction force was significantly different between the BAL and PLYO groups on the dominant side (p < 0.05). Both groups decreased their standard deviation of center of pressure (COP) during hop landings in the medial/lateral direction on their dominant side, which equalized pretested side to side differences. Both groups increased hamstrings strength and vertical jump. The results of this study suggest that both PLYO and BAL training are effective at increasing measures of neuromuscular power and control. A combination of PLYO and BAL training may further maximize the effectiveness of preseason training for female athletes.
-
the effects of plyometric versus dynamic stabilization and balance training on lower extremity biomechanics
American Journal of Sports Medicine, 2006Co-Authors: Gregory D Myer, Kevin R Ford, Timothy E Hewett, Scott G McleanAbstract:BackgroundNeuromuscular training that includes both plyometric and dynamic stabilization/balance exercises alters movement biomechanics and reduces ACL injury risk in female athletes. The biomechanical effects of plyometric and balance training utilized separately are unknown.HypothesisA protocol that includes balance training without plyometric training will decrease coronal plane hip, knee, and ankle motions during landing, and plyometric training will not affect coronal plane measures. The corollary hypothesis was that plyometric and balance training effects on knee flexion are dependent on the movement task tested.Study DesignControlled laboratory study.MethodsEighteen high school female athletes participated in 18 training sessions during a 7-week period. The plyometric group (n= 8) performed maximum-effort jumping and cutting exercises, and the balance group (n = 10) used dynamic stabilization/ balance exercises during training. Lower extremity kinematics were measured during the drop vertical jump ...
-
the effects of plyometric versus dynamic stabilization and balance training on lower extremity biomechanics
American Journal of Sports Medicine, 2006Co-Authors: Gregory D Myer, Kevin R Ford, Timothy E Hewett, Scott G McleanAbstract:BackgroundNeuromuscular training that includes both plyometric and dynamic stabilization/balance exercises alters movement biomechanics and reduces ACL injury risk in female athletes. The biomechanical effects of plyometric and balance training utilized separately are unknown.HypothesisA protocol that includes balance training without plyometric training will decrease coronal plane hip, knee, and ankle motions during landing, and plyometric training will not affect coronal plane measures. The corollary hypothesis was that plyometric and balance training effects on knee flexion are dependent on the movement task tested.Study DesignControlled laboratory study.MethodsEighteen high school female athletes participated in 18 training sessions during a 7-week period. The plyometric group (n= 8) performed maximum-effort jumping and cutting exercises, and the balance group (n = 10) used dynamic stabilization/ balance exercises during training. Lower extremity kinematics were measured during the drop vertical jump ...