An examination of strength and concentric work ratios during variable range of motion training

Journal of Strength and Conditioning Research
Ross A ClarkBrendan Humphries

Abstract

Variable range of motion (ROM) training consists of partial ROM resistance training with the countermovement being performed at a different phase of the movement for each set. In this study, we assessed the effect of this method of training on peak force, load lifted, and concentric work performed. Six male subjects with resistance training backgrounds (age 20.2 +/- 1.3 years, height 179.4 +/- 4.6 cm, weight 89.6 +/- 9.9 kg, 6-repetition maximum [6RM] bench press 92.5 +/- 14.3 kg) participated in this study. Testing consisted of 6RM bench press strength tests during full (FULL), three quarter ((3/4)), one half ((1/2)), and one quarter ((1/4)) ROM from full elbow extension bench press performed on a Smith machine. The 6RM load, peak force (PF), and concentric work (W) performed during each ROM was examined using a one-way analysis of variance performed at an alpha level of p < 0.05. The 6RM load increased significantly as the ROM was decreased for all tests (FULL = 92.5 +/- 14.3 kg, (3/4) = 102.1 +/- 14.3 kg, (1/2) = 123.3 +/- 23.6 kg, (1/4) = 160.9 +/- 26.2 kg). PF during each test was significantly higher during the (1/4) (1924.8 +/- 557.9 N) and (1/2) (1859.4 +/- 317.1 N) ROM from full elbow extension bench press when compare...Continue Reading

References

Jan 1, 1992·Medicine and Science in Sports and Exercise·J E GravesM N Fulton
Feb 1, 1989·Medicine and Science in Sports and Exercise·J E GravesS H Leggett

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Citations

Mar 13, 2010·Journal of Strength and Conditioning Research·Ross A ClarkYong-Hao Pua
Jun 29, 2010·Journal of Strength and Conditioning Research·Ross A ClarkAdam L Bryant
Oct 27, 2011·Journal of Strength and Conditioning Research·Ronei S PintoMartim Bottaro
Mar 26, 2014·Journal of Strength and Conditioning Research·Caleb D BazylerMichael H Stone
Jul 10, 2018·Journal of Strength and Conditioning Research·Daniel E Newmire, Darryn S Willoughby
Nov 7, 2015·Journal of Strength and Conditioning Research·Timothy J SuchomelMichael H Stone
Jul 10, 2018·European Journal of Applied Physiology·Maria João ValamatosPedro Mil-Homens
Aug 15, 2018·Sports·Timothy J SuchomelMichael H Stone
Jun 26, 2021·Scandinavian Journal of Medicine & Science in Sports·Jesús G PallarésJavier Courel-Ibáñez
Oct 1, 2019·Journal of Strength and Conditioning Research·Alejandro Martínez-CavaJesús G Pallarés

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