Enhanced myofiber recruitment during exhaustive squatting performed as whole-body vibration exercise

Journal of Strength and Conditioning Research
Holger EckhardtBirgit Friedmann-Bette

Abstract

The purpose of the study was to test the hypothesis that myofiber recruitment is enhanced when whole-body vibration (WBV) is added to squat training. In a randomized cross-over design, 14 recreationally active men were subjected to 2 sessions consisting of 5 sets of 10 squats with external load, performed either on a vibration platform (whole-body vibration squatting [WBVS]) or conventionally without WBV (CON). Electromyographic (EMG) activity of the right vastus lateralis muscle was continuously recorded during WBVS and CON. The integrated EMG values were normalized to the EMG activity recorded during measurement of the maximal voluntary contraction force (MVC) on an isometric leg press at the beginning of each training session. Capillary lactate concentration was determined before and repeatedly after the squatting exercise. Overall mean normalized and integrated EMG (nIEMG) activity during WBVS (62 ± 4% MVC) was significantly (p < 0.001) higher compared with CON (47 ± 2% MVC). There was a tendency for nIEMG to increase during the 5 sets of 10 squats performed as WBVS (p = 0.089), whereas there was a significant (p < 0.001) decrease in nIEMG during CON. Whole-body vibration squatting induced a significantly (p < 0.001) larger...Continue Reading

References

Dec 1, 1994·Journal of Sports Sciences·V B IssurinG Tenenbaum
Apr 14, 1999·Clinical Physiology·C BoscoA Viru
Mar 29, 2000·Clinical Physiology·J RittwegerD Felsenberg
May 15, 2002·Clinical Physiology and Functional Imaging·Saila TorvinenIlkka Vuori
Sep 10, 2002·Medicine and Science in Sports and Exercise·Saila TorvinenIlkka Vuori
Feb 4, 2003·Exercise and Sport Sciences Reviews·Marco Cardinale, Carmelo Bosco
Jun 5, 2003·Medicine and Science in Sports and Exercise·Christophe DelecluseSabine Verschueren
Aug 22, 2003·Journal of Strength and Conditioning Research·Marco Cardinale, Jon Lim
Jan 30, 2004·International Journal of Sports Medicine·M RoelantsS Verschueren
Jan 18, 2005·Sports Medicine·Jin LuoKieran Moran
Aug 25, 2005·British Journal of Sports Medicine·M Cardinale, J Wakeling
Sep 15, 2005·International Journal of Sports Medicine·C DelecluseS Verschueren
Feb 17, 2006·European Journal of Applied Physiology·Thue KvorningKlavs Madsen
Jul 11, 2006·Medicine and Science in Sports and Exercise·Katya N MilevaJoanna L Bowtell
Mar 31, 2007·Scandinavian Journal of Medicine & Science in Sports·M Krogsgaard
Jun 15, 2007·Clinical Physiology and Functional Imaging·Julie ErskineMarco Cardinale
Feb 11, 2009·Medicine and Science in Sports and Exercise·UNKNOWN American College of Sports Medicine

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Citations

Feb 15, 2012·Medicine and Science in Sports and Exercise·Ricky W K LauMarco Y C Pang
Oct 26, 2012·Journal of Strength and Conditioning Research·Esmeraldo Martínez-PardoPedro E Alcaraz
Aug 1, 2013·Medicine and Science in Sports and Exercise·Lin-Rong LiaoGabriel Y F Ng
Dec 30, 2015·Sports Medicine·Timothy J SuchomelGavin L Moir
Jul 6, 2014·The Journal of Spinal Cord Medicine·Milad Alizadeh-MeghraziB Catharine Craven
Nov 5, 2011·Journal of Applied Physiology·Birgit Friedmann-BetteRalf Kinscherf
May 17, 2014·Journal of Strength and Conditioning Research·Esmeraldo Martínez-PardoPedro E Alcaraz

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