Influence of squatting depth on jumping performance

Journal of Strength and Conditioning Research
Hagen HartmannDietmar Schmidtbleicher

Abstract

It is unclear if increases in 1 repetition maximum (1RM) in quarter squats result in higher gains compared with full depth squats in isometric force production and vertical jump performance. The aim of the research projects was to compare the effects of different squat variants on the development of 1RM and their transfer effects to Countermovement jump (CMJ) and squat jump (SJ) height, maximal voluntary contraction (MVC), and maximal rate of force development (MRFD). Twenty-three women and 36 men (mean age: 24.11 ± 2.88 years) were parallelized into 3 groups based on their CMJ height: deep front squats (FSQ, n = 20), deep back squats (BSQ, n = 20), and quarter back squats (BSQ¼, n = 19). In addition, a control group (C, n = 16) existed (mean age: 24.38 ± 0.50 years). Experimental groups trained 2 d·wk for 10 weeks with a strength-power block periodization, which produced significant (p ≤ 0.05) gains of the specific squat 1RM. The FSQ and BSQ attained significant (p ≤ 0.05) elevations in SJ and CMJ without any interaction effects between both groups (p ≥ 0.05). The BSQ¼ and C did not reveal any significant changes of SJ and CMJ. The FSQ and BSQ had significantly higher SJ scores over C (p ≤ 0.05). The BSQ did not feature any si...Continue Reading

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Citations

Mar 26, 2014·Journal of Strength and Conditioning Research·Caleb D BazylerMichael H Stone
Apr 22, 2015·Sports Biomechanics·Megan A BryantonLoren Z F Chiu
Aug 1, 2016·Sports Medicine·Klaus WirthAndre Sander
Sep 21, 2013·European Journal of Sport Science·André SanderDietmar Schmidtbleicher
Dec 30, 2014·Journal of Strength and Conditioning Research·Julien RobineauAndré X Bigard
Oct 7, 2015·Journal of Strength and Conditioning Research·Klaus WirthMichael Keiner
Nov 15, 2018·Journal of Sports Sciences·Alejandro Martínez-CavaJesús G Pallarés
Sep 25, 2018·Journal of Strength and Conditioning Research·Karsten Øvretveit, Tiril Tøien
Nov 27, 2014·Journal of Strength and Conditioning Research·Caleb D BazylerKimitake Sato
Dec 19, 2015·Journal of Strength and Conditioning Research·Fernando Sanz-LópezAntonio Martínez-Amat
Sep 11, 2018·Journal of Strength and Conditioning Research·Sebastian KellerDennis-Peter Born
Nov 10, 2017·Journal of Strength and Conditioning Research·Loren Z F Chiu
Apr 20, 2016·Journal of Strength and Conditioning Research·Christian RaederAlexander Ferrauti
Feb 28, 2013·Journal of Strength and Conditioning Research·Amy N MoolykLoren Z F Chiu
Sep 9, 2015·Journal of Strength and Conditioning Research·Christian RaederAlexander Ferrauti
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Jul 10, 2019·Journal of Sports Sciences·Philip X FuchsHerbert Wagner
Oct 3, 2018·Journal of Strength and Conditioning Research·Sebastian MöckChristoph Mickel
May 1, 2021·International Journal of Environmental Research and Public Health·Alejandro Pérez-CastillaAmador García-Ramos
Jun 26, 2021·Scandinavian Journal of Medicine & Science in Sports·Jesús G PallarésJavier Courel-Ibáñez
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