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Sled-Pull Load–Velocity Profiling and Implications for Sprint Training Prescription in Young Male Athletes

The purpose of this study was to examine the usefulness of individual load–velocity profiles and the between-athlete variation using the decrement in maximal velocity (Vdec) approach to prescribe training loads in resisted sled pulling in young athletes. Seventy high school, team sport, male athlete...

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Autores principales: Cahill, Micheál J., Oliver, Jon L., Cronin, John B., Clark, Kenneth P., Cross, Matt R., Lloyd, Rhodri S.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6572326/
https://www.ncbi.nlm.nih.gov/pubmed/31137511
http://dx.doi.org/10.3390/sports7050119
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author Cahill, Micheál J.
Oliver, Jon L.
Cronin, John B.
Clark, Kenneth P.
Cross, Matt R.
Lloyd, Rhodri S.
author_facet Cahill, Micheál J.
Oliver, Jon L.
Cronin, John B.
Clark, Kenneth P.
Cross, Matt R.
Lloyd, Rhodri S.
author_sort Cahill, Micheál J.
collection PubMed
description The purpose of this study was to examine the usefulness of individual load–velocity profiles and the between-athlete variation using the decrement in maximal velocity (Vdec) approach to prescribe training loads in resisted sled pulling in young athletes. Seventy high school, team sport, male athletes (age 16.7 ± 0.8 years) were recruited for the study. All participants performed one un-resisted and four resisted sled-pull sprints with incremental resistance of 20% BM. Maximal velocity was measured with a radar gun during each sprint and the load–velocity relationship established for each participant. A subset of 15 participants was used to examine the reliability of sled pulling on three separate occasions. For all individual participants, the load–velocity relationship was highly linear (r > 0.95). The slope of the load–velocity relationship was found to be reliable (coefficient of variation (CV) = 3.1%), with the loads that caused a decrement in velocity of 10, 25, 50, and 75% also found to be reliable (CVs = <5%). However, there was a large between-participant variation (95% confidence intervals (CIs)) in the load that caused a given Vdec, with loads of 14–21% body mass (% BM) causing a Vdec of 10%, 36–53% BM causing a Vdec of 25%, 71–107% BM causing a Vdec of 50%, and 107–160% BM causing a Vdec of 75%. The Vdec method can be reliably used to prescribe sled-pulling loads in young athletes, but practitioners should be aware that the load required to cause a given Vdec is highly individualized.
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spelling pubmed-65723262019-06-18 Sled-Pull Load–Velocity Profiling and Implications for Sprint Training Prescription in Young Male Athletes Cahill, Micheál J. Oliver, Jon L. Cronin, John B. Clark, Kenneth P. Cross, Matt R. Lloyd, Rhodri S. Sports (Basel) Article The purpose of this study was to examine the usefulness of individual load–velocity profiles and the between-athlete variation using the decrement in maximal velocity (Vdec) approach to prescribe training loads in resisted sled pulling in young athletes. Seventy high school, team sport, male athletes (age 16.7 ± 0.8 years) were recruited for the study. All participants performed one un-resisted and four resisted sled-pull sprints with incremental resistance of 20% BM. Maximal velocity was measured with a radar gun during each sprint and the load–velocity relationship established for each participant. A subset of 15 participants was used to examine the reliability of sled pulling on three separate occasions. For all individual participants, the load–velocity relationship was highly linear (r > 0.95). The slope of the load–velocity relationship was found to be reliable (coefficient of variation (CV) = 3.1%), with the loads that caused a decrement in velocity of 10, 25, 50, and 75% also found to be reliable (CVs = <5%). However, there was a large between-participant variation (95% confidence intervals (CIs)) in the load that caused a given Vdec, with loads of 14–21% body mass (% BM) causing a Vdec of 10%, 36–53% BM causing a Vdec of 25%, 71–107% BM causing a Vdec of 50%, and 107–160% BM causing a Vdec of 75%. The Vdec method can be reliably used to prescribe sled-pulling loads in young athletes, but practitioners should be aware that the load required to cause a given Vdec is highly individualized. MDPI 2019-05-20 /pmc/articles/PMC6572326/ /pubmed/31137511 http://dx.doi.org/10.3390/sports7050119 Text en © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Cahill, Micheál J.
Oliver, Jon L.
Cronin, John B.
Clark, Kenneth P.
Cross, Matt R.
Lloyd, Rhodri S.
Sled-Pull Load–Velocity Profiling and Implications for Sprint Training Prescription in Young Male Athletes
title Sled-Pull Load–Velocity Profiling and Implications for Sprint Training Prescription in Young Male Athletes
title_full Sled-Pull Load–Velocity Profiling and Implications for Sprint Training Prescription in Young Male Athletes
title_fullStr Sled-Pull Load–Velocity Profiling and Implications for Sprint Training Prescription in Young Male Athletes
title_full_unstemmed Sled-Pull Load–Velocity Profiling and Implications for Sprint Training Prescription in Young Male Athletes
title_short Sled-Pull Load–Velocity Profiling and Implications for Sprint Training Prescription in Young Male Athletes
title_sort sled-pull load–velocity profiling and implications for sprint training prescription in young male athletes
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6572326/
https://www.ncbi.nlm.nih.gov/pubmed/31137511
http://dx.doi.org/10.3390/sports7050119
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