Neuromuscular and Structural Effects of Using Stretching During the Recovery Phase Between Sets of Upper and Lower-body Strength Training

July 20, 2026 updated by: Universidad Europea de Madrid

Efectos Neuromusculares y Estructurales de la utilización de Estiramientos en la Fase de recuperación Entre Series de Entrenamiento de la Fuerza de Los Miembros Superiores e Inferiores

Neuromuscular and structural effects of using stretching during the recovery phase between sets of upper and lower-body strength training

Study Overview

Study Type

Interventional

Enrollment (Actual)

35

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

    • Madrid
      • Villaviciosa de Odón, Madrid, Spain
        • Edificio D

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Adult

Accepts Healthy Volunteers

Yes

Description

Inclusion Criteria:

Male or female adults aged 18-30 years. Apparently healthy, with no medical conditions that contraindicate participation in resistance training.

A minimum of 6 consecutive months of resistance training experience. Regular resistance training participation of at least three sessions per week during the previous 6 months.

Previous experience performing the back squat and bench press exercises with correct technique.

Ability to perform maximal intended concentric velocity during resistance exercises.

Willingness to refrain from vigorous physical activity during the 24 hours preceding each testing and training session.

Ability and willingness to comply with all study procedures. Provision of written informed consent.

Exclusion Criteria:

Current musculoskeletal injury affecting the upper or lower limbs that limits participation in resistance training or testing.

Acute or chronic pain that is aggravated by the study exercises. Cardiovascular, neurological, metabolic, or other medical conditions that contraindicate vigorous physical exercise.

Current participation in another structured intervention study or clinical trial.

Inability to attend the scheduled assessments or training sessions. Failure to comply with the study protocol or training requirements. Withdrawal of informed consent at any stage of the study. Occurrence of an adverse event during the intervention that prevents continued participation.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Agonists stretching
Neuromuscular and structural effects of using AGONISTS stretching during the recovery phase between sets of upper and lower-body strength training
Neuromuscular and structural effects of using AGONISTS stretching during the recovery phase between sets of upper and lower-body strength training
Other Names:
  • STRETCHING
Active Comparator: Antagonists stretching
Neuromuscular and structural effects of using ANTAGONISTS stretching during the recovery phase between sets of upper and lower-body strength training
Neuromuscular and structural effects of using ANTAGONISTS stretching during the recovery phase between sets of upper and lower-body strength training
Other Names:
  • STRETCHING
Placebo Comparator: Control
Neuromuscular and structural effects of NOT using stretching during the recovery phase between sets of upper and lower-body strength training
Neuromuscular and structural effects of using NOT stretching during the recovery phase between sets of upper and lower-body strength training
Other Names:
  • CONTROL

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Acute resistance-training performance: total number of repetitions
Time Frame: First intervention session (Week 1), across the four training sets.
Total number of repetitions completed across four sets of bench press and back squat during the first intervention session. Participants will perform each set to momentary muscular failure at maximal intended concentric velocity, using individualized absolute loads corresponding to 75% of the estimated one-repetition maximum (1RM) for the bench press and 80% of the estimated 1RM for the back squat. Repetitions completed in each set and total repetitions per exercise will be recorded to compare the immediate effects of agonist stretching, antagonist stretching, and no stretching.
First intervention session (Week 1), across the four training sets.

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

September 20, 2024

Primary Completion (Actual)

April 1, 2026

Study Completion (Actual)

June 20, 2026

Study Registration Dates

First Submitted

July 20, 2026

First Submitted That Met QC Criteria

July 20, 2026

First Posted (Actual)

July 23, 2026

Study Record Updates

Last Update Posted (Actual)

July 23, 2026

Last Update Submitted That Met QC Criteria

July 20, 2026

Last Verified

September 1, 2024

More Information

Terms related to this study

Other Study ID Numbers

  • 2024-495

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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