Velocity loss thresholds reliably control kinetic and kinematic outputs during free weight resistance training

Journal article


Pearson, Madison, García-Ramos, Amador, Morrison, Matthew, Ramirez-Lopez, Carlos, Dalton-Barron, Nicholas and Weakley, Jonathon. (2020). Velocity loss thresholds reliably control kinetic and kinematic outputs during free weight resistance training. International Journal of Environmental Research and Public Health. 17(18), p. Article 6509. https://doi.org/10.3390/ijerph17186509
AuthorsPearson, Madison, García-Ramos, Amador, Morrison, Matthew, Ramirez-Lopez, Carlos, Dalton-Barron, Nicholas and Weakley, Jonathon
Abstract

Exercise velocity and relative velocity loss thresholds (VLTs) are commonly used in velocity-based resistance training. This study aims to quantify the between-day reliability of 10%, 20%, and 30% VLTs on kinetic and kinematic outputs, changes in external load, and repetition characteristics in well-trained athletes. Using a repeated, counter-balanced crossover design, twelve semi-professional athletes completed five sets of the back squat with an external load corresponding to a mean concentric velocity of ~0.70 m·s−1 and a VLT applied. The testing sessions were repeated after four weeks of unstructured training to assess the long-term reliability of each VLT. A coefficient of variation (CV) <10% was used to classify outputs as reliable. Kinetic and kinematic outputs and external load were largely reliable, with only peak power during sets 2–5 within the 10% VLT condition demonstrating a CV >10% (CV: 11.14–14.92%). Alternatively, the repetitions completed within each set showed large variation (CV: 18.92–67.49%). These findings demonstrate that by utilizing VLTs, kinetic and kinematic outputs can be prescribed and replicated across training mesocycles. Thus, for practitioners wishing to reliably control the kinetic and kinematic stimulus that is being applied to their athletes, it is advised that a velocity-based approach is used.

Keywordsvelocity-based training; reliability; resistance training; training prescription
Year2020
JournalInternational Journal of Environmental Research and Public Health
Journal citation17 (18), p. Article 6509
PublisherMultidisciplinary Digital Publishing Institute (MDPI AG)
ISSN1661-7827
Digital Object Identifier (DOI)https://doi.org/10.3390/ijerph17186509
PubMed ID32906825
Scopus EID2-s2.0-85090292442
PubMed Central IDPMC7558277
Open accessPublished as ‘gold’ (paid) open access
Research or scholarlyResearch
Page range1-11
Publisher's version
License
File Access Level
Open
Output statusPublished
Publication dates
Online07 Sep 2020
Publication process dates
Accepted01 Sep 2020
Deposited24 Aug 2022
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