Effects of an Acute and Chronic Training Protocol Associated to the Inter-set Velocity Loss
24. maj 2019 opdateret af: Alejandro Muñoz López
Neuromuscular, Physiological and Performance Changes After an Acute and Chronic Training Protocol Associated to the Inter-set Velocity Loss
This study evaluates different performance, physiological and neuromuscular changes after acute and chronic resistance training intervention in physically active men.
The participants will train with a single exercise (full squat) and will be monitored with a linear encoder.
The experiment will consist of between 3 to 6 sets between 70% to 85% of 1RM in the full squat exercise.
Two main groups will form the intervention: one group will perform inter-set repetitions until there will be a 20% of velocity loss compared to the first repetition, while the second group will have a 40% of velocity loss.
Studieoversigt
Status
Ukendt
Betingelser
Intervention / Behandling
Detaljeret beskrivelse
The main dependent variables and instruments will be:
- Tensyomiography: neuromuscular properties of the vastus lateral (VL), rectus femoris (RF) and vastus medialis (VM) from the dominant leg.
- Force platform: kinetic variables in relation to a countermovement jump.
- Near-infrared spectrography: oxygen saturation in the VL and VM.
- Termographic camera: low limbs temperatura.
- Linear encoder: mean propulsive velocity from each repetition
- Electromyography: amplitude and frequency parameters related to a knee extension maximum voluntary contraction test.
- Strain gauge: maximum isometric force.
Undersøgelsestype
Interventionel
Tilmelding (Forventet)
30
Fase
- Ikke anvendelig
Kontakter og lokationer
Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.
Deltagelseskriterier
Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.
Berettigelseskriterier
Aldre berettiget til at studere
18 år til 30 år (Voksen)
Tager imod sunde frivillige
Ja
Køn, der er berettiget til at studere
Han
Beskrivelse
Inclusion Criteria:
- To be healthy
- Without injuries or actual illnesses
- More than 2 years of experience in resistance training or federative sports
Exclusion Criteria:
- To be sick or injured
- To have programmed during the intervention phase a dramatic change in the lifestyle
Studieplan
Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Primært formål: Andet
- Tildeling: Randomiseret
- Interventionel model: Crossover opgave
- Maskning: Enkelt
Våben og indgreb
Deltagergruppe / Arm |
Intervention / Behandling |
|---|---|
|
Eksperimentel: 20% velocity loss
This group will train with a variable number of repetitions during each set.
The group will stop the set once the mean propulsive velocity will be 20% less compared to the first repetition.
|
In a crossover design, participants will be randomized to perform on Day 1, 3 sets of repetitions (depending on each treatment group) at 70% or 1RM in the full squat exercise.
48-h later, same will be performed but in the contrary crossover arm.
In a randomized control trial, participants will train during 6 weeks the full squat exercise, 2 days in the week (minimum between-days rest of 48h).
Intensity will vary from 70% to 85 of 1RM, and training volume from 3 to 6 sets.
Prior to any intervention, all participants will perform a familiarization of the exercise session, together with a progressive resistance test to estimate the 1 RM
|
|
Eksperimentel: 40% velocity loss
This group will train with a variable number of repetitions during each set.
The group will stop the set once the mean propulsive velocity will be 40% less compared to the first repetition.
|
In a crossover design, participants will be randomized to perform on Day 1, 3 sets of repetitions (depending on each treatment group) at 70% or 1RM in the full squat exercise.
48-h later, same will be performed but in the contrary crossover arm.
In a randomized control trial, participants will train during 6 weeks the full squat exercise, 2 days in the week (minimum between-days rest of 48h).
Intensity will vary from 70% to 85 of 1RM, and training volume from 3 to 6 sets.
Prior to any intervention, all participants will perform a familiarization of the exercise session, together with a progressive resistance test to estimate the 1 RM
|
|
Placebo komparator: Control group
This group will be just tested as a control group.
|
In a randomized control trial, participants will train during 6 weeks the full squat exercise, 2 days in the week (minimum between-days rest of 48h).
Intensity will vary from 70% to 85 of 1RM, and training volume from 3 to 6 sets.
Prior to any intervention, all participants will perform a familiarization of the exercise session, together with a progressive resistance test to estimate the 1 RM
|
Hvad måler undersøgelsen?
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
Contraction time
Tidsramme: 7 weeks
|
Time between 10% to 90% on the displacement-time curve assessed with the Tensiomiograhpy
|
7 weeks
|
|
Maximum displacement
Tidsramme: 7 weeks
|
Maximum displacement point the displacement-time curve assessed with the Tensiomiograhpy
|
7 weeks
|
Sekundære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
Kinetic variables in the jump
Tidsramme: 7 weeks
|
Kinetic variables related to the force-time curve registered with the force platform during jumps
|
7 weeks
|
|
Muscle tissue oxygen
Tidsramme: 7 weeks
|
Oxygen in the muscle tissue assessed via near-infrared spectroscopy
|
7 weeks
|
|
Muscle temperature
Tidsramme: 7 weeks
|
Low limb muscles temperature assessed with a termographic camera
|
7 weeks
|
|
Mean propulsive velocity
Tidsramme: 7 weeks
|
Individual repetitions mean propulsive velocity during the full squat exercise, assessed with a linear encoder
|
7 weeks
|
|
Amplitude (RMS) and frequency outputs
Tidsramme: 7 weeks
|
Muscle electrical activity assessed with an EMG
|
7 weeks
|
|
Peak isometric force
Tidsramme: 7 weeks
|
Maximum force achieved during a knee extension at 120º
|
7 weeks
|
Samarbejdspartnere og efterforskere
Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.
Sponsor
Efterforskere
- Studieleder: Alejandro Muñoz López, PhD, Internship
- Ledende efterforsker: Jesus Gustavo Ponce, PhD, Professor
Publikationer og nyttige links
Den person, der er ansvarlig for at indtaste oplysninger om undersøgelsen, leverer frivilligt disse publikationer. Disse kan handle om alt relateret til undersøgelsen.
Generelle publikationer
- de Paula Simola RA, Harms N, Raeder C, Kellmann M, Meyer T, Pfeiffer M, Ferrauti A. Assessment of neuromuscular function after different strength training protocols using tensiomyography. J Strength Cond Res. 2015 May;29(5):1339-48. doi: 10.1519/JSC.0000000000000768.
- Pareja-Blanco F, Rodriguez-Rosell D, Sanchez-Medina L, Ribas-Serna J, Lopez-Lopez C, Mora-Custodio R, Yanez-Garcia JM, Gonzalez-Badillo JJ. Acute and delayed response to resistance exercise leading or not leading to muscle failure. Clin Physiol Funct Imaging. 2017 Nov;37(6):630-639. doi: 10.1111/cpf.12348. Epub 2016 Mar 11.
- Pareja-Blanco F, Rodriguez-Rosell D, Sanchez-Medina L, Sanchis-Moysi J, Dorado C, Mora-Custodio R, Yanez-Garcia JM, Morales-Alamo D, Perez-Suarez I, Calbet JAL, Gonzalez-Badillo JJ. Effects of velocity loss during resistance training on athletic performance, strength gains and muscle adaptations. Scand J Med Sci Sports. 2017 Jul;27(7):724-735. doi: 10.1111/sms.12678. Epub 2016 Mar 31.
- Moran-Navarro R, Martinez-Cava A, Sanchez-Medina L, Mora-Rodriguez R, Gonzalez-Badillo JJ, Pallares JG. Movement Velocity as a Measure of Level of Effort During Resistance Exercise. J Strength Cond Res. 2019 Jun;33(6):1496-1504. doi: 10.1519/JSC.0000000000002017.
- Sanchez-Medina L, Pallares JG, Perez CE, Moran-Navarro R, Gonzalez-Badillo JJ. Estimation of Relative Load From Bar Velocity in the Full Back Squat Exercise. Sports Med Int Open. 2017 Mar 28;1(2):E80-E88. doi: 10.1055/s-0043-102933. eCollection 2017 Feb. German.
- Gonzalez-Badillo JJ, Yanez-Garcia JM, Mora-Custodio R, Rodriguez-Rosell D. Velocity Loss as a Variable for Monitoring Resistance Exercise. Int J Sports Med. 2017 Mar;38(3):217-225. doi: 10.1055/s-0042-120324. Epub 2017 Feb 13.
- Rodriguez-Rosell D, Yanez-Garcia JM, Torres-Torrelo J, Mora-Custodio R, Marques MC, Gonzalez-Badillo JJ. Effort Index as a Novel Variable for Monitoring the Level of Effort During Resistance Exercises. J Strength Cond Res. 2018 Aug;32(8):2139-2153. doi: 10.1519/JSC.0000000000002629.
- Franz A, Behringer M, Harmsen JF, Mayer C, Krauspe R, Zilkens C, Schumann M. Ischemic Preconditioning Blunts Muscle Damage Responses Induced by Eccentric Exercise. Med Sci Sports Exerc. 2018 Jan;50(1):109-115. doi: 10.1249/MSS.0000000000001406.
- Rusu LD, Cosma GG, Cernaianu SM, Marin MN, Rusu PF, Ciocanescu DP, Neferu FN. Tensiomyography method used for neuromuscular assessment of muscle training. J Neuroeng Rehabil. 2013 Jul 3;10:67. doi: 10.1186/1743-0003-10-67.
- Gutierrez-Vargas R, Martin-Rodriguez S, Sanchez-Urena B, Rodriguez-Montero A, Salas-Cabrera J, Gutierrez-Vargas JC, Simunic B, Rojas-Valverde D. Biochemical and Muscle Mechanical Postmarathon Changes in Hot and Humid Conditions. J Strength Cond Res. 2020 Mar;34(3):847-856. doi: 10.1519/JSC.0000000000002746.
- Wiewelhove T, Raeder C, de Paula Simola RA, Schneider C, Doweling A, Ferrauti A. Tensiomyographic Markers Are Not Sensitive for Monitoring Muscle Fatigue in Elite Youth Athletes: A Pilot Study. Front Physiol. 2017 Jun 16;8:406. doi: 10.3389/fphys.2017.00406. eCollection 2017.
- Piqueras-Sanchiz F, Martin-Rodriguez S, Martinez-Aranda LM, Lopes TR, Raya-Gonzalez J, Garcia-Garcia O, Nakamura FY. Effects of moderate vs. high iso-inertial loads on power, velocity, work and hamstring contractile function after flywheel resistance exercise. PLoS One. 2019 Feb 7;14(2):e0211700. doi: 10.1371/journal.pone.0211700. eCollection 2019. Erratum In: PLoS One. 2019 Apr 12;14(4):e0215567.
- Macgregor LJ, Hunter AM, Orizio C, Fairweather MM, Ditroilo M. Assessment of Skeletal Muscle Contractile Properties by Radial Displacement: The Case for Tensiomyography. Sports Med. 2018 Jul;48(7):1607-1620. doi: 10.1007/s40279-018-0912-6.
- Raeder C, Wiewelhove T, Simola RA, Kellmann M, Meyer T, Pfeiffer M, Ferrauti A. Assessment of Fatigue and Recovery in Male and Female Athletes After 6 Days of Intensified Strength Training. J Strength Cond Res. 2016 Dec;30(12):3412-3427. doi: 10.1519/JSC.0000000000001427.
- Giovanelli N, Taboga P, Rejc E, Simunic B, Antonutto G, Lazzer S. Effects of an Uphill Marathon on Running Mechanics and Lower-Limb Muscle Fatigue. Int J Sports Physiol Perform. 2016 May;11(4):522-9. doi: 10.1123/ijspp.2014-0602. Epub 2015 Sep 21.
Datoer for undersøgelser
Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.
Studer store datoer
Studiestart (Forventet)
1. juli 2019
Primær færdiggørelse (Forventet)
30. august 2019
Studieafslutning (Forventet)
15. september 2019
Datoer for studieregistrering
Først indsendt
23. maj 2019
Først indsendt, der opfyldte QC-kriterier
23. maj 2019
Først opslået (Faktiske)
28. maj 2019
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Faktiske)
29. maj 2019
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
24. maj 2019
Sidst verificeret
1. maj 2019
Mere information
Begreber relateret til denne undersøgelse
Nøgleord
Andre undersøgelses-id-numre
- TMG_velocity_lost
Plan for individuelle deltagerdata (IPD)
Planlægger du at dele individuelle deltagerdata (IPD)?
INGEN
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