Using Load-Velocity Relationships to Predict 1rm in Free-Weight Exercise: A Comparison of the Different Methods

Journal of Strength and Conditioning Research
Liam J HughesBrendan R Scott

Abstract

The purpose of this study was to investigate the reliability and validity of predicting 1-repetition maximum (1RM) in trained individuals using a load-velocity relationship. Twenty strength-trained men (age: 24.3±2.9 years, height: 180.1±5.9 cm, body mass: 84.2±10.5 kg) were recruited and visited the laboratory on three occasions. The load-velocity relationship was developed using the mean concentric velocity of repetitions performed at loads between 20% and 90% 1RM. Predicted 1RM was calculated using 3 different methods discussed in existing research; minimal velocity threshold 1RM (1RMMVT), load at zero velocity 1RM (1RMLD0) and force-velocity 1RM methods (1RMFV). The reliability of 1RM predictions was examined using intraclass correlation coefficient (ICC) and coefficient of variation (CV). 1RMMVT demonstrated the highest reliability (ICC=0.92-0.96, CV=3.6-5.0%), followed by 1RMLD0 (ICC=0.78-0.82, CV=8.2-8.6%) and 1RMFV (ICC=-0.28-0.00, CV= N/A). Both 1RMMVT and 1RMLD0 were very strongly correlated with measured 1RM (r=0.91-0.95). The only method which was not significantly different to measured 1RM was the 1RMLD0 method. However, when analyzed on an individual basis (using Bland-Altman plots), all methods exhibited a high d...Continue Reading

References

Feb 1, 1983·The Journal of Physiology·C D MarsdenJ C Rothwell
Jan 1, 1997·European Journal of Applied Physiology and Occupational Physiology·R U NewtonK Häkkinen
Feb 13, 2003·Journal of Strength and Conditioning Research·Len KravitzStephen J Kinzey
Sep 1, 1987·Journal of Motor Behavior·W G Darling, W G Cooke
Apr 6, 2004·Medicine and Science in Sports and Exercise·William J Kraemer, Nicholas A Ratamess
Nov 17, 2009·Journal of Strength and Conditioning Research·William F Brechue, Jerry L Mayhew
Dec 8, 2009·Journal of Strength and Conditioning Research·Boris JidovtseffJohn B Cronin
Feb 25, 2010·International Journal of Sports Medicine·J J González-Badillo, L Sánchez-Medina
May 29, 2010·Journal of Strength and Conditioning Research·Mark R McKeanBrendan J Burkett
Jul 31, 2013·Journal of Strength and Conditioning Research·Brendan R ScottKatie M Slattery
Jun 26, 2015·Biochemia Medica·Davide Giavarina
Sep 1, 2016·European Journal of Applied Physiology·Pietro PicernoMaria Francesca Piacentini
Sep 27, 2016·Journal of Strength and Conditioning Research·Harry G BanyardG Gregory Haff
Mar 23, 2017·Journal of Strength and Conditioning Research·Irineu LoturcoFábio Y Nakamura

❮ Previous
Next ❯

Citations

Jul 17, 2020·Journal of Sports Sciences·Liam J HughesBrendan R Scott
Jul 19, 2020·Scandinavian Journal of Medicine & Science in Sports·Fernando Pareja-BlancoManuel Ortega-Becerra

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.

Related Papers

International Journal of Sports Medicine
J J González-Badillo, L Sánchez-Medina
Journal of Strength and Conditioning Research
Carlos Balsalobre-FernándezJuan Del Campo-Vecino
Journal of Strength and Conditioning Research
Avery D FaigenbaumGregory D Myer
Journal of Strength and Conditioning Research
Michael R McGuiganArnold G Nelson
Journal of Strength and Conditioning Research
Matt S StockMichael A Dillon
© 2022 Meta ULC. All rights reserved