Effects of an Acute and Chronic Training Protocol Associated to the Inter-set Velocity Loss
24. mai 2019 oppdatert av: 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.
Studieoversikt
Status
Ukjent
Forhold
Intervensjon / Behandling
Detaljert 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.
Studietype
Intervensjonell
Registrering (Forventet)
30
Fase
- Ikke aktuelt
Kontakter og plasseringer
Denne delen inneholder kontaktinformasjon for de som utfører studien, og informasjon om hvor denne studien blir utført.
Deltakelseskriterier
Forskere ser etter personer som passer til en bestemt beskrivelse, kalt kvalifikasjonskriterier. Noen eksempler på disse kriteriene er en persons generelle helsetilstand eller tidligere behandlinger.
Kvalifikasjonskriterier
Alder som er kvalifisert for studier
18 år til 30 år (Voksen)
Tar imot friske frivillige
Ja
Kjønn som er kvalifisert for studier
Mann
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
Denne delen gir detaljer om studieplanen, inkludert hvordan studien er utformet og hva studien måler.
Hvordan er studiet utformet?
Designdetaljer
- Primært formål: Annen
- Tildeling: Randomisert
- Intervensjonsmodell: Crossover-oppdrag
- Masking: Enkelt
Våpen og intervensjoner
Deltakergruppe / Arm |
Intervensjon / Behandling |
|---|---|
|
Eksperimentell: 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
|
|
Eksperimentell: 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
|
Hva måler studien?
Primære resultatmål
Resultatmål |
Tiltaksbeskrivelse |
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 |
Tiltaksbeskrivelse |
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
|
Samarbeidspartnere og etterforskere
Det er her du vil finne personer og organisasjoner som er involvert i denne studien.
Sponsor
Etterforskere
- Studieleder: Alejandro Muñoz López, PhD, Internship
- Hovedetterforsker: Jesus Gustavo Ponce, PhD, Professor
Publikasjoner og nyttige lenker
Den som er ansvarlig for å legge inn informasjon om studien leverer frivillig disse publikasjonene. Disse kan handle om alt relatert til studiet.
Generelle publikasjoner
- 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.
Studierekorddatoer
Disse datoene sporer fremdriften for innsending av studieposter og sammendragsresultater til ClinicalTrials.gov. Studieposter og rapporterte resultater gjennomgås av National Library of Medicine (NLM) for å sikre at de oppfyller spesifikke kvalitetskontrollstandarder før de legges ut på det offentlige nettstedet.
Studer hoveddatoer
Studiestart (Forventet)
1. juli 2019
Primær fullføring (Forventet)
30. august 2019
Studiet fullført (Forventet)
15. september 2019
Datoer for studieregistrering
Først innsendt
23. mai 2019
Først innsendt som oppfylte QC-kriteriene
23. mai 2019
Først lagt ut (Faktiske)
28. mai 2019
Oppdateringer av studieposter
Sist oppdatering lagt ut (Faktiske)
29. mai 2019
Siste oppdatering sendt inn som oppfylte QC-kriteriene
24. mai 2019
Sist bekreftet
1. mai 2019
Mer informasjon
Begreper knyttet til denne studien
Nøkkelord
Andre studie-ID-numre
- TMG_velocity_lost
Plan for individuelle deltakerdata (IPD)
Planlegger du å dele individuelle deltakerdata (IPD)?
NEI
Legemiddel- og utstyrsinformasjon, studiedokumenter
Studerer et amerikansk FDA-regulert medikamentprodukt
Nei
Studerer et amerikansk FDA-regulert enhetsprodukt
Nei
Denne informasjonen ble hentet direkte fra nettstedet clinicaltrials.gov uten noen endringer. Hvis du har noen forespørsler om å endre, fjerne eller oppdatere studiedetaljene dine, vennligst kontakt register@clinicaltrials.gov. Så snart en endring er implementert på clinicaltrials.gov, vil denne også bli oppdatert automatisk på nettstedet vårt. .