Effects of an Acute and Chronic Training Protocol Associated to the Inter-set Velocity Loss

NCT03964519 | Unknown

• 1 other identifier: TMG_velocity_lost
• Study Type: interventional
• Target: 30
• Locations: 0 countries
• Sites: N/A

Brief Summary

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.

Conditions

Healthy

Keywords

velocity loss; Tensiomiography; resistance training

Outcome Measures

Primary Outcomes (2)

• Contraction time

  Time between 10% to 90% on the displacement-time curve assessed with the Tensiomiograhpy

  7 weeks

• Maximum displacement

  Maximum displacement point the displacement-time curve assessed with the Tensiomiograhpy

  7 weeks

Secondary Outcomes (6)

• Kinetic variables in the jump

  7 weeks

• Muscle tissue oxygen

  7 weeks

• Muscle temperature

  7 weeks

• Mean propulsive velocity

  7 weeks

• Amplitude (RMS) and frequency outputs

  7 weeks

Study Arms (3)

20% velocity loss

EXPERIMENTAL

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.

Other: Acute changes; Other: Chronic changes; Other: Familiarization

40% velocity loss

EXPERIMENTAL

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.

Other: Acute changes; Other: Chronic changes; Other: Familiarization

Control group

PLACEBO COMPARATOR

This group will be just tested as a control group.

Other: Chronic changes; Other: Familiarization

Interventions

Acute changes OTHER

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.

20% velocity loss; 40% velocity loss

Chronic changes OTHER

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.

20% velocity loss; 40% velocity loss; Control group

Familiarization OTHER

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

20% velocity loss; 40% velocity loss; Control group

Eligibility Criteria

• Age: 18 Years - 30 Years
• Sex: male
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64)

You may qualify if:

• To be healthy
• Without injuries or actual illnesses
• More than 2 years of experience in resistance training or federative sports

You may not qualify if:

• To be sick or injured
• To have programmed during the intervention phase a dramatic change in the lifestyle

Sponsors & Collaborators

• Alejandro Muñoz López: lead

Related Publications (15)

• 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.

  PMID: 26970332 BACKGROUND

• 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.

  PMID: 27038416 BACKGROUND

• 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.

  PMID: 29944141 BACKGROUND

• 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.

  PMID: 30539090 BACKGROUND

• 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.

  PMID: 28192832 BACKGROUND

• 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.

  PMID: 29781942 BACKGROUND

• 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.

  PMID: 28832392 BACKGROUND

• 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.

  PMID: 23822158 BACKGROUND

• 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.

  PMID: 30024483 BACKGROUND

• 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.

  PMID: 28670284 BACKGROUND

• 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.

  PMID: 30730959 BACKGROUND

• 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.

  PMID: 25474337 BACKGROUND

• 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.

  PMID: 29605838 BACKGROUND

• 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.

  PMID: 27093538 BACKGROUND

• 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.

  PMID: 26390075 BACKGROUND

Study Officials

• Alejandro Muñoz López, PhD

  Internship

  STUDY DIRECTOR

• Jesus Gustavo Ponce, PhD

  Professor

  PRINCIPAL INVESTIGATOR

Central Study Contacts

Jesus Gustazo Ponce, PhD

CONTACT

+34 658 87 41 34; jesusgustavo.ponce@uca.es

Alejandro Muñoz López, PhD

CONTACT

0034 699661447; amunoz26@us.es

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: SINGLE
• Who Masked: PARTICIPANT
• Purpose: OTHER
• Intervention Model: CROSSOVER
• Sponsor Type: OTHER
• Responsible Party: SPONSOR INVESTIGATOR
• PI Title: Associate Professor

Study Record Dates

• First Submitted: May 23, 2019
• First Posted: May 28, 2019
• Study Start: July 1, 2019
• Primary Completion: August 30, 2019
• Study Completion: September 15, 2019
• Last Updated: May 29, 2019

Record last verified: 2019-05

Data Sharing

• IPD Sharing: Will not share