Selective Effects of Training Against Weight and Inertia on Muscle Mechanical Properties

International Journal of Sports Physiology and Performance
Sasa DjuricSlobodan Jaric

Abstract

To explore the effects of training against mechanically different types of loads on muscle force (F), velocity (V), and power (P) outputs. Subjects practiced maximum bench throws over 8 wk against a bar predominantly loaded by approximately constant external force (weight), weight plates (weight plus inertia), or weight plates whose weight was compensated by a constant external force pulling upward (inertia). Instead of a typically applied single trial performed against a selected load, the pretest and posttest consisted of the same task performed against 8 different loads ranging from 30% to 79% of the subject's maximum strength applied by adding weight plates to the bar. That provided a range of F and V data for subsequent modeling by linear F-V regression revealing the maximum F (F-intercept), V (V-intercept), and P (P = FV/4). Although all 3 training conditions resulted in increased P, the inertia type of the training load could be somewhat more effective than weight. An even more important finding was that the P increase could be almost exclusively based on a gain in F, V, or both when weight, inertia, or weight-plus-inertia training load were applied, respectively. The inertia training load is more effective than weight i...Continue Reading

Citations

May 6, 2017·Journal of Strength and Conditioning Research·Alejandro Pérez-CastillaAmador García-Ramos
Dec 29, 2017·International Journal of Sports Physiology and Performance·Pierre SamozinoPedro Jimenez-Reyes
May 31, 2018·Journal of Strength and Conditioning Research·Amador García-RamosAlejandro Pérez-Castilla
Mar 7, 2020·Sports Biomechanics·Jessica Rial-VázquezEliseo Iglesias-Soler
Sep 17, 2019·Journal of Human Kinetics·Amador García-RamosBelén Feriche
Jan 26, 2017·Frontiers in Physiology·Pedro Jiménez-ReyesJean-Benoît Morin
Mar 25, 2017·European Journal of Sport Science·Amador García-RamosSlobodan Jaric
Jun 29, 2017·International Journal of Sports Physiology and Performance·Amador García-RamosSlobodan Jaric
Jan 19, 2019·Journal of Exercise Rehabilitation·Sungwoo Kang
Feb 2, 2021·PloS One·Kolbjørn LindbergGøran Paulsen
Mar 30, 2021·PeerJ·Miyuki NakataniYohei Takai
May 28, 2021·International Journal of Sports Physiology and Performance·Kolbjørn LindbergGøran Paulsen
May 3, 2019·Journal of Strength and Conditioning Research·Marko CosicAmador Garcia-Ramos

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