Half-squat or jump squat training under optimum power load conditions to counteract power and speed decrements in Brazilian elite soccer players during the preseason

Journal of Sports Sciences
Irineu LoturcoFabio Y Nakamura

Abstract

The purpose of this study was to test which specific type of exercise (i.e., jump squat (JS) or half-squat (HS)) is more effective at maintaining speed and power abilities throughout a preseason in soccer players. Twenty-three male soccer players were randomly allocated into two groups: JS and HS. The mean propulsive power, vertical jumping ability, and sprinting performance were evaluated before and after 4 weeks of a preseason period. The optimum power loads for the JS and HS exercises were assessed and were used as load-references. The soccer players performed 10 power oriented training sessions in total. Both JS and HS maintained power in JS and speed abilities (P > 0.05, for main effects and interaction effect) as indicated by ANCOVA. Both groups demonstrated reduced power during HS (ES = -0.76 vs. -0.78, for JS and HS, respectively); both groups improved acceleration (ACC) from 5 to 10 m (ES = 0.52). JS was more effective at reducing the ACC decrements over 0-5 m (ES = -0.38 vs. -0.58, for JS and HS, respectively). The HS group increased squat jump height (ES = 0.76 vs. 0.11, for HS and JS, respectively). In summary, JS is more effective in reducing the ACC capacity over very short sprints while HS is more effective in im...Continue Reading

References

Jan 1, 1980·European Journal of Applied Physiology and Occupational Physiology·R C Hickson
Jun 1, 1995·Sports Medicine·P AbernethyP Logan
May 7, 2002·Journal of Strength and Conditioning Research·Matthew R RheaLee N Burkett
Jul 4, 2003·Medicine and Science in Sports and Exercise·Iñigo Mujika, Sabino Padilla
Feb 20, 2004·Journal of Strength and Conditioning Research·William J KraemerHoward G Knuttgen
Dec 3, 2004·Journal of Strength and Conditioning Research·Matthew R Rhea
Jan 16, 2007·European Journal of Applied Physiology·Aaron J CouttsGreg J Rowsell
Feb 6, 2007·Medicine and Science in Sports and Exercise·Prue CormieJeffrey M McBride
May 1, 2007·Journal of Science and Medicine in Sport·Aaron J CouttsLee K Wallace
Dec 14, 2007·Journal of Strength and Conditioning Research·Thomas W BufordAric J Warren
Apr 29, 2008·Journal of Strength and Conditioning Research·Bent R RonnestadTruls Raastad
Aug 21, 2008·Perceptual and Motor Skills·Aaron J Coutts, Peter Reaburn
Aug 21, 2008·Journal of Strength and Conditioning Research·Brian T Channell, J P Barfield
Nov 4, 2008·Journal of Strength and Conditioning Research·Nigel K HarrisKeir T Hansen
Aug 14, 2009·Journal of Strength and Conditioning Research·Jeffrey M McBrideN Travis Triplett
Aug 26, 2009·Journal of Strength and Conditioning Research·Pui-lam WongUlrik Wisløff
Oct 10, 2009·Journal of Strength and Conditioning Research·Pui-lam WongUlrik Wisloff
Mar 12, 2010·International Journal of Sports Medicine·L Sanchez-MedinaJ J Gonzalez-Badillo
Apr 24, 2010·European Journal of Applied Physiology·Jesús García-PallarésMikel Izquierdo
Jun 15, 2010·Journal of Strength and Conditioning Research·J Bryan MannStephen P Sayers
Jul 20, 2010·Medicine and Science in Sports and Exercise·Prue CormieRobert U Newton
Jan 29, 2011·International Journal of Sports Medicine·O FaudeT Meyer
May 13, 2011·International Journal of Sports Medicine·J HelgerudJ Hoff
Jul 23, 2011·Journal of Sports Sciences·Jeffrey M McBrideTyler J Kirby
Oct 25, 2011·International Journal of Sports Medicine·T Meyer, S Meister
Jan 10, 2012·Journal of Strength and Conditioning Research·Leonardo LamasValmor Tricoli
Feb 9, 2012·Journal of Strength and Conditioning Research·Paul ComfortMartyn J Matthews
Feb 22, 2012·Journal of Strength and Conditioning Research·João R SilvaAntónio N Rebelo
Feb 24, 2012·International Journal of Sports Physiology and Performance·John Kiely
Mar 1, 2012·Journal of Strength and Conditioning Research·Irineu LoturcoJuan José Gonzáles-Badillo
Mar 8, 2012·Journal of Sports Sciences·Oliver FaudeTim Meyer
Mar 27, 2012·Journal of Strength and Conditioning Research·Paul ComfortStephen J Pearson
Jun 26, 2012·Journal of Science and Medicine in Sport·Eduardo Sáez de VillarrealJuan José Gonzalez-Badillo
Jun 30, 2012·Journal of Strength and Conditioning Research·Mette F HeisterbergJesper L Andersen
Feb 28, 2013·Journal of Strength and Conditioning Research·Carlo CastagnaVincenzo Manzi
Mar 13, 2013·International Journal of Sports Physiology and Performance·Selenia di FronsoMaurizio Bertollo
Apr 2, 2013·Journal of Strength and Conditioning Research·Paul ComfortBen Clarkson
Nov 26, 2013·Journal of Strength and Conditioning Research·Thomas W JonesDuncan N French

❮ Previous
Next ❯

Citations

Oct 9, 2015·PloS One·Irineu LoturcoJuan José González-Badillo
May 24, 2016·Journal of Sports Sciences·Irineu LoturcoFabio Yuzo Nakamura
Nov 13, 2015·Journal of Strength and Conditioning Research·Fábio Y NakamuraIrineu Loturco
Nov 26, 2015·Journal of Strength and Conditioning Research·Bernardo MiloskiMaurício G Bara-Filho
Dec 30, 2016·Journal of Human Kinetics·Irineu LoturcoFabio Y Nakamura
Nov 16, 2018·Journal of Human Kinetics·Irineu LoturcoFábio Y Nakamura
Sep 14, 2017·Journal of Strength and Conditioning Research·Anderson S TeixeiraLuiz Guilherme A Guglielmo
Aug 8, 2019·Journal of Sports Sciences·Irineu LoturcoMichael R Mcguigan
Oct 16, 2019·International Journal of Sports Physiology and Performance·Antonio Dello IaconoIsrael Halperin
May 17, 2019·International Journal of Sports Physiology and Performance·João RibeiroFábio Y Nakamura
Jun 24, 2020·Journal of Sports Sciences·Pedro L ValenzuelaIrineu Loturco
Jan 9, 2018·The Journal of Sports Medicine and Physical Fitness·Juliano SpinetiRoberto Simão
Nov 5, 2015·Sports Medicine·Joao Renato SilvaGeorge P Nassis
Jul 14, 2017·Journal of Strength and Conditioning Research·M Reyes Beltran-VallsPau Cecilia-Gallego
Mar 27, 2019·Journal of Strength and Conditioning Research·Irineu LoturcoLucas A Pereira
Aug 1, 2020·Journal of Strength and Conditioning Research·Marián VanderkaSimon Walker
Sep 16, 2020·Research Quarterly for Exercise and Sport·Leonardo S FortesFabiano S Fonseca
Aug 11, 2018·Journal of Strength and Conditioning Research·Antonio Dello IaconoIsrael Halperin
Mar 11, 2021·International Journal of Sports Physiology and Performance·Tomás T FreitasIrineu Loturco

❮ Previous
Next ❯

Software Mentioned

SPSS

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.