Athletic InjuriesNCT07408739
Association Between Weekly Strength Training Load and Perceived Physical Performance in Non-Professional Soccer Players
An observational study of Athletic Injuries, run by University of Oviedo at 1 site in Spain.
Trial summary
Background. Strength training is a key component of physical performance in soccer. However, in non-professional players, evidence regarding the relationship between weekly strength training load and perceived physical performance remains limited, particularly when considering factors such as fatigue, pain, and… Read more about this study
- Who is it for?
- Ages 18 to 40 years, men onlyHealthy volunteers can take part
- Conditions the study is for
- Athletic Injuries
- What is being tested?
- Soccer players sample
- How many people
- 154 participants
- Where
- 1 siteSpain
- Study dates
- 12 Feb 2026to 11 May 2026
- Phase
- Observational
- Are there results?
- Not yet: the study is under way
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 40 years
- Men only
- Healthy volunteers accepted
- Adult
Study population: Active non-professional (amateur) soccer players.
Who may be able to join
- Age between 18 and 40 years.
- Competing in the 3ª RFEF category.
- Male sex.
- Having at least two years of seniority in federated football.
- Signing the informed consent document.
Who cannot join
- Athletes with injuries lasting more than 3 months during the last season.
- Participation in fewer than two weekly group training sessions (one or none).
- Having undergone lower-limb surgery in the last 24 months.
- Players who, despite being able to attend training sessions on a continuous basis, have a regular occupational activity that causes such a high physical workload that their sports performance is limited in training and/or competition.
Trial locations and contacts
1 site in 1 country.
About this study
Official title: Association Between Weekly Strength Training Load and Perceived Physical Performance in Non-Professional Soccer Players: A Cross-Sectional Observational Study
Background. Strength training is a key component of physical performance in soccer. However, in non-professional players, evidence regarding the relationship between weekly strength training load and perceived physical performance remains limited, particularly when considering factors such as fatigue, pain, and motivation.
Objective. To analyze the association between self-reported weekly strength training load and perceived physical performance in non-professional soccer players, and to examine the influence of perceived fatigue, musculoskeletal pain, and exercise motivation on this relationship.
Read more
Methods. An observational, analytical, cross-sectional study conducted using a structured, self-administered online questionnaire. The dependent variable will be perceived physical performance, assessed using the Perceived Performance in Sports Questionnaire. Independent variables will include weekly strength training load, measured using the session Rating of Perceived Exertion (sRPE), perceived fatigue assessed with the Fatigue Severity Scale, and motivation toward training and sport participation assessed with the Behavioral Regulation in Exercise Questionnaire-2. Adjustment variables will include age, sex, playing position, competitive level, sporting experience, mean match playing time (minutes per match), body mass index, and overall weekly training load. Descriptive analyses and multivariable regression models will be performed.
Expected results. To identify the relationship between weekly strength training load and perceived physical performance, and to determine the physical and psychosocial factors associated with lower self-perceived performance in non-professional soccer players.
- Conditions
- Athletic Injuries
- Being tested
- Soccer players sample
- Keywords
- Soccer, Strength Training, Athletic Performance, Fatigue, Motivation
- Medical subject headings
- Athletic Injuries, Fatigue
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Soccer players sampleOther
Active non-professional (amateur) soccer players.
| Study group | Role | What they receive |
|---|---|---|
| Observational group | Non-professional soccer players Receives: Other: Soccer players sample |
What is being measured
The primary outcome is the main question the study is designed to answer.
Measurement of perceived physical performance
This variable will be assessed using the Spanish version of the Perceived Performance in Sports Questionnaire. This instrument measures athletes' subjective evaluation of their own performance during competition or sport practice. It consists of five items rated on a 1-5 Likert scale, with the final score calculated as the mean of the items; higher scores indicate better perceived performance. As no specific cut-off points are established, the score will be interpreted as a continuous variable.
Measured: Screening visit
Secondary outcomes (3)
Measurement of weekly strength training load
Weekly strength training load will be quantified using the session Rating of Perceived Exertion (sRPE; Borg CR-10). Participants will report session duration and perceived intensity (0-10) for all strength sessions in the previous week. Weekly load will be calculated as the sum of sRPE × duration (minutes) across sessions.
Measured: Screening visit
Measurement of perceived fatigue
This variable will be assessed using the Spanish version of the Fatigue Severity Scale (FSS). This self-reported questionnaire evaluates the impact of fatigue on daily functioning and consists of nine items rated on a 1-7 Likert scale. The final score is calculated as the mean of the items, with higher values indicating greater perceived fatigue; a mean score ≥4 is considered indicative of clinically significant fatigue.
Measured: Screening visit
Measurement of motivation toward training and sport participation
This variable will be assessed using the Spanish version of the Behavioral Regulation in Exercise Questionnaire-2 (BREQ-2). This self-reported instrument, grounded in Self-Determination Theory, evaluates different types of motivational regulation toward exercise. It consists of 19 items distributed across the dimensions of amotivation, external regulation, introjected regulation, identified regulation, and intrinsic motivation. Higher scores in autonomous regulation, particularly intrinsic motivation, are associated with greater adherence to and engagement in sport practice.
Measured: Screening visit
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted13 Feb 2026
- Study start12 Feb 2026
- Primary completion13 Apr 2026
- Study completion11 May 2026 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Athletic InjuriesStudies 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
- Observational
- Observational model
- Cohort
- Time perspective
- Cross-sectional
- Enrolment
- 154 participants (actual)
Sponsor and investigators
- Lead sponsor
- University of Oviedo
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Ruben Cuesta Barriuso, University of Oviedo
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07408739
- Sponsor's protocol ID
- FutRend
- Status last verified
- Feb 2026
- First submitted
- 6 Feb 2026
- Last updated
- 1 May 2026
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- Undecided
Study at a glance
From the registry record, last updated by the sponsor on 1 May 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Association Between Weekly Strength Training Load and Perceived Physical Performance in Non-Professional Soccer Players: A Cross-Sectional Observational Study
- ClinicalTrials.gov ID
- NCT07408739
- Acronym / sponsor ID
- FutRend
- Conditions
- Athletic Injuries
- Keywords
- Soccer, Strength Training, Athletic Performance, Fatigue, Motivation
- Study type
- Observational
- Recruitment status
- Active, not recruiting
- Enrolment
- 154 participants (actual)
- Lead sponsor
- University of OviedoUniversity, hospital or other
- Study start
- 12 Feb 2026 (actual)
- Primary completion
- 13 Apr 2026 (actual)
- Study completion
- 11 May 2026 (estimated)
- First posted
- 13 Feb 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.
Background. Strength training is a key component of physical performance in soccer. However, in non-professional players, evidence regarding the relationship between weekly strength training load and perceived physical performance remains limited, particularly when considering factors such as fatigue, pain, and motivation.
Objective. To analyze the association between self-reported weekly strength training load and perceived physical performance in non-professional soccer players, and to examine the influence of perceived fatigue, musculoskeletal pain, and exercise motivation on this relationship.
Methods. An observational, analytical, cross-sectional study conducted using a structured, self-administered online questionnaire. The dependent variable will be perceived physical performance, assessed using the Perceived Performance in Sports Questionnaire. Independent variables will include weekly strength training load, measured using the session Rating of Perceived Exertion (sRPE), perceived fatigue assessed with the Fatigue Severity Scale, and motivation toward training and sport participation assessed with the Behavioral Regulation in Exercise Questionnaire-2. Adjustment variables will include age, sex, playing position, competitive level, sporting experience, mean match playing time (minutes per match), body mass index, and overall weekly training load. Descriptive analyses and multivariable regression models will be performed.
Expected results. To identify the relationship between weekly strength training load and perceived physical performance, and to determine the physical and psychosocial factors associated with lower self-perceived performance in non-professional soccer players.
Study design
- Observational model
- Cohort
- Time perspective
- Cross-sectional
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| Observational group | – | Other: Soccer players sampleNon-professional soccer players |
Who may qualify
- Ages
- 18 to 40 years
- Sex
- Male only
- Healthy volunteers
- Accepted
- Age groups
- Adult
- Study population
- Active non-professional (amateur) soccer players.
Key inclusion criteria (5 listed)
- Age between 18 and 40 years.
- Competing in the 3ª RFEF category.
- Male sex.
- Having at least two years of seniority in federated football.
- Signing the informed consent document.
Key exclusion criteria (4 listed)
- Athletes with injuries lasting more than 3 months during the last season.
- Participation in fewer than two weekly group training sessions (one or none).
- Having undergone lower-limb surgery in the last 24 months.
- Players who, despite being able to attend training sessions on a continuous basis, have a regular occupational activity that causes such a high physical workload that their sports performance is limited in training and/or competition.
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 |
|---|---|---|
| Soccer players sampleActive non-professional (amateur) soccer players. | Other | Observational group |
Primary outcome
Measurement of perceived physical performance
Time frame: Screening visit
This variable will be assessed using the Spanish version of the Perceived Performance in Sports Questionnaire. This instrument measures athletes' subjective evaluation of their own performance during competition or sport practice. It consists of five items rated on a 1-5 Likert scale, with the final score calculated as the mean of the items; higher scores indicate better perceived performance. As no specific cut-off points are established, the score will be interpreted as a continuous variable.
3 secondary outcomes
Measurement of weekly strength training load
Time frame: Screening visit
Measurement of perceived fatigue
Time frame: Screening visit
Measurement of motivation toward training and sport participation
Time frame: Screening visit
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 1 May 2026.
- Individual participant dataSharing planned: Undecided
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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?
An observational study of Athletic Injuries, run by University of Oviedo 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 5 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: under way, not looking for participants, as of the sponsor's last update on 1 May 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. 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?
This study is still under way. Results are not available in the source record yet.
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?
Measurement of perceived physical performance (time frame: Screening visit). 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 1 May 2026.