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Effect of the movement speed of resistance training exercises on sprint and strength performance in concurrently training elite junior sprinters.
J Sports Sci. 2002 Dec; 20(12):981-90.JS

Abstract

The aim of this study was to determine the effects of 7 weeks of high- and low-velocity resistance training on strength and sprint running performance in nine male elite junior sprint runners (age 19.0+/-1.4 years, best 100 m times 10.89+/-0.21 s; mean +/- s). The athletes continued their sprint training throughout the study, but their resistance training programme was replaced by one in which the movement velocities of hip extension and flexion, knee extension and flexion and squat exercises varied according to the loads lifted (i.e. 30-50% and 70-90% of 1-RM in the high- and low-velocity training groups, respectively). There were no between-group differences in hip flexion or extension torque produced at 1.05, 4.74 or 8.42 rad x s(-1), 20 m acceleration or 20 m 'flying' running times, or 1-RM squat lift strength either before or after training. This was despite significant improvements in 20 m acceleration time (P < 0.01), squat strength (P < 0.05), isokinetic hip flexion torque at 4.74 rad x s(-1) and hip extension torque at 1.05 and 4.74 rad x s(-1) for the athletes as a whole over the training period. Although velocity-specific strength adaptations have been shown to occur rapidly in untrained and nonconcurrently training individuals, the present results suggest a lack of velocity-specific performance changes in elite concurrently training sprint runners performing a combination of traditional and semi-specific resistance training exercises.

Authors+Show Affiliations

Department of Sport Sciences, Brunel University, UK. anthony.blazevich@brunel.ac.ukNo affiliation info available

Pub Type(s)

Comparative Study
Journal Article

Language

eng

PubMed ID

12477008

Citation

Blazevich, Anthony J., and David G. Jenkins. "Effect of the Movement Speed of Resistance Training Exercises On Sprint and Strength Performance in Concurrently Training Elite Junior Sprinters." Journal of Sports Sciences, vol. 20, no. 12, 2002, pp. 981-90.
Blazevich AJ, Jenkins DG. Effect of the movement speed of resistance training exercises on sprint and strength performance in concurrently training elite junior sprinters. J Sports Sci. 2002;20(12):981-90.
Blazevich, A. J., & Jenkins, D. G. (2002). Effect of the movement speed of resistance training exercises on sprint and strength performance in concurrently training elite junior sprinters. Journal of Sports Sciences, 20(12), 981-90.
Blazevich AJ, Jenkins DG. Effect of the Movement Speed of Resistance Training Exercises On Sprint and Strength Performance in Concurrently Training Elite Junior Sprinters. J Sports Sci. 2002;20(12):981-90. PubMed PMID: 12477008.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Effect of the movement speed of resistance training exercises on sprint and strength performance in concurrently training elite junior sprinters. AU - Blazevich,Anthony J, AU - Jenkins,David G, PY - 2002/12/13/pubmed PY - 2003/3/8/medline PY - 2002/12/13/entrez SP - 981 EP - 90 JF - Journal of sports sciences JO - J Sports Sci VL - 20 IS - 12 N2 - The aim of this study was to determine the effects of 7 weeks of high- and low-velocity resistance training on strength and sprint running performance in nine male elite junior sprint runners (age 19.0+/-1.4 years, best 100 m times 10.89+/-0.21 s; mean +/- s). The athletes continued their sprint training throughout the study, but their resistance training programme was replaced by one in which the movement velocities of hip extension and flexion, knee extension and flexion and squat exercises varied according to the loads lifted (i.e. 30-50% and 70-90% of 1-RM in the high- and low-velocity training groups, respectively). There were no between-group differences in hip flexion or extension torque produced at 1.05, 4.74 or 8.42 rad x s(-1), 20 m acceleration or 20 m 'flying' running times, or 1-RM squat lift strength either before or after training. This was despite significant improvements in 20 m acceleration time (P < 0.01), squat strength (P < 0.05), isokinetic hip flexion torque at 4.74 rad x s(-1) and hip extension torque at 1.05 and 4.74 rad x s(-1) for the athletes as a whole over the training period. Although velocity-specific strength adaptations have been shown to occur rapidly in untrained and nonconcurrently training individuals, the present results suggest a lack of velocity-specific performance changes in elite concurrently training sprint runners performing a combination of traditional and semi-specific resistance training exercises. SN - 0264-0414 UR - https://www.unboundmedicine.com/medline/citation/12477008/Effect_of_the_movement_speed_of_resistance_training_exercises_on_sprint_and_strength_performance_in_concurrently_training_elite_junior_sprinters_ L2 - https://www.tandfonline.com/doi/full/10.1080/026404102321011742 DB - PRIME DP - Unbound Medicine ER -