Strength Training AdaptationsNCT07723768
Neuromuscular and Structural Effects of Using Stretching During the Recovery Phase Between Sets of Upper and Lower-body Strength Training
A study testing 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 AGONISTS stretching during the recovery phase between sets of upper and lower-body strength training and Neuromuscular and structural effects of using NOT stretching during the recovery phase between sets of upper and lower-body strength training in people with Strength Training Adaptations, run by Universidad Europea de Madrid at 1 site in Spain.
Trial summary
Neuromuscular and structural effects of using stretching during the recovery phase between sets of upper and lower-body strength training Read more about this study
- Who is it for?
- Ages 18 to 30 yearsHealthy volunteers can take part
- Conditions the study is for
- Strength Training Adaptations
- What is being tested?
- 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 AGONISTS stretching during the recovery phase between sets of upper and lower-body strength training and Neuromuscular and structural effects of using NOT stretching during the recovery phase between sets of upper and lower-body strength training
- Could I receive a placebo?
- Yes, some participants may receive a placebo
- How many people
- 35 participants
- Where
- 1 siteSpain
- Study dates
- 20 Sep 2024to 20 Jun 2026
- Phase
- Interventional
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 to 30 years
- All sexes
- Healthy volunteers accepted
- Adult
Who may be able to join
- 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.
Who cannot join
- 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.
Trial locations and contacts
1 site in 1 country.
About this study
Official title: 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
- Conditions
- Strength Training Adaptations
- Being tested
- 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 AGONISTS 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
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Neuromuscular and structural effects of using ANTAGONISTS stretching during the recovery phase between sets of upper and lower-body strength trainingOther
Also called 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 AGONISTS stretching during the recovery phase between sets of upper and lower-body strength trainingOther
Also called 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 NOT stretching during the recovery phase between sets of upper and lower-body strength trainingOther
Also called CONTROL
Neuromuscular and structural effects of using NOT stretching during the recovery phase between sets of upper and lower-body strength training
| Study group | Role | What they receive |
|---|---|---|
| Agonists stretching | Experimental | Neuromuscular and structural effects of using AGONISTS stretching during the recovery phase between sets of upper and lower-body strength training Receives: Other: Neuromuscular and structural effects of using AGONISTS stretching during the recovery phase between sets of upper and lower-body strength training |
| Antagonists stretching | Active comparator | Neuromuscular and structural effects of using ANTAGONISTS stretching during the recovery phase between sets of upper and lower-body strength training Receives: Other: Neuromuscular and structural effects of using ANTAGONISTS stretching during the recovery phase between sets of upper and lower-body strength training |
| Control | Placebo comparator | Neuromuscular and structural effects of NOT using stretching during the recovery phase between sets of upper and lower-body strength training Receives: Other: Neuromuscular and structural effects of using NOT stretching during the recovery phase between sets of upper and lower-body strength training |
What is being measured
The primary outcome is the main question the study is designed to answer.
Acute resistance-training performance: total number of repetitions
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.
Measured: First intervention session (Week 1), across the four training sets.
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted23 Jul 2026
- Study start20 Sep 2024
- Primary completion1 Apr 2026
- Study completion20 Jun 2026
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Strength Training AdaptationsStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Enrolment
- 35 participants (actual)
Sponsor and investigators
- Lead sponsor
- Universidad Europea de Madrid
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07723768
- Sponsor's protocol ID
- 2024-495
- Status last verified
- Sep 2024
- First submitted
- 20 Jul 2026
- Last updated
- 23 Jul 2026
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
Study at a glance
From the registry record, last updated by the sponsor on 23 Jul 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- 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
- ClinicalTrials.gov ID
- NCT07723768
- Acronym / sponsor ID
- 2024-495
- Conditions
- Strength Training Adaptations
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 35 participants (actual)
- Lead sponsor
- Universidad Europea de MadridUniversity, hospital or other
- Study start
- 20 Sep 2024 (actual)
- Primary completion
- 1 Apr 2026 (actual)
- Study completion
- 20 Jun 2026 (actual)
- First posted
- 23 Jul 2026 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Neuromuscular and structural effects of using stretching during the recovery phase between sets of upper and lower-body strength training
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Number of arms
- 3
| Arm | Type | Receives |
|---|---|---|
| Agonists stretching | Experimental | Other: Neuromuscular and structural effects of using AGONISTS stretching during the recovery phase between sets of upper and lower-body strength trainingNeuromuscular and structural effects of using AGONISTS stretching during the recovery phase between sets of upper and lower-body strength training |
| Antagonists stretching | Active comparator | Other: Neuromuscular and structural effects of using ANTAGONISTS stretching during the recovery phase between sets of upper and lower-body strength trainingNeuromuscular and structural effects of using ANTAGONISTS stretching during the recovery phase between sets of upper and lower-body strength training |
| Control | Placebo comparator | Other: Neuromuscular and structural effects of using NOT stretching during the recovery phase between sets of upper and lower-body strength trainingNeuromuscular and structural effects of NOT using stretching during the recovery phase between sets of upper and lower-body strength training |
Who may qualify
- Ages
- 18 to 30 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult
Key inclusion criteria (6 listed)
- 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.
Key exclusion criteria (4 listed)
- 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.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Neuromuscular and structural effects of using ANTAGONISTS stretching during the recovery phase between sets of upper and lower-body strength trainingAlso: STRETCHINGNeuromuscular and structural effects of using ANTAGONISTS stretching during the recovery phase between sets of upper and lower-body strength training | Other | Antagonists stretching |
| Neuromuscular and structural effects of using AGONISTS stretching during the recovery phase between sets of upper and lower-body strength trainingAlso: STRETCHINGNeuromuscular and structural effects of using AGONISTS stretching during the recovery phase between sets of upper and lower-body strength training | Other | Agonists stretching |
| Neuromuscular and structural effects of using NOT stretching during the recovery phase between sets of upper and lower-body strength trainingAlso: CONTROLNeuromuscular and structural effects of using NOT stretching during the recovery phase between sets of upper and lower-body strength training | Other | Control |
Primary outcome
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.
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 23 Jul 2026.
Related trials for Strength Training Adaptations
Not yet recruiting
Contribution of Corticospinal and Reticulospinal Mechanisms to Neural Adaptations Induced by Muscle Strengthening of Healthy Adults
Healthy Volunteers, Resistance Training Adaptation
Not yet recruiting
Effects of Traditional and Cluster Set Resistance Training on Muscle Strength, Hypertrophy, and Power
Strength Training Adaptations
Active, not recruiting
Effects of Blood Flow Restriction Training on Physical Function, Muscle Adaptations, and Performance in Roller Skaters
Athletic Performance Enhancement
Not yet recruiting
High-Velocity Resistance Training for Brain Blood Flow and Cognitive Function in Older Adults
At Risk for AD-dementia, With Subjective Cognitive Decline, At Risk for Cognitive Decline
Recruiting
Velocity-Loss Training and Parkinson's Disease
Activity, Motor
Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
The record lists no contact. Use the official record to reach the sponsor.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing 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 AGONISTS stretching during the recovery phase between sets of upper and lower-body strength training and Neuromuscular and structural effects of using NOT stretching during the recovery phase between sets of upper and lower-body strength training in people with Strength Training Adaptations, run by Universidad Europea de Madrid at 1 site in Spain.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 6 inclusion and 4 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 23 Jul 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Spain. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Acute resistance-training performance: total number of repetitions (time frame: First intervention session (Week 1), across the four training sets.). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 23 Jul 2026.