Shoulder InstabilityNCT07400900
Effectiveness of a Standardised Stabilisation Exercise Protocol in Volleyball Players With Non-traumatic Shoulder Instability
A study testing Exercise in people with Shoulder Instability, run by Universidad Francisco de Vitoria.
Trial summary
This randomized controlled clinical trial aims to evaluate the effectiveness of a standardized shoulder stabilization exercise program in amateur volleyball players diagnosed with atraumatic shoulder instability. Read more about this study
- Who is it for?
- Ages 18 to 30 years
- Conditions the study is for
- Shoulder Instability
- What is being tested?
- Exercise
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 22 participants
- Where
- No sites listed yet
- Study dates
- 1 May 2026to 1 Aug 2026
- Phase
- Interventional
- 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 30 years
- All sexes
- No healthy volunteers
- Adult
Who may be able to join
- Amateur volleyball players.
- Age range: 18 to 30 years.
- Clinical diagnosis of atraumatic shoulder instability.
- Symptom duration greater than 3 months.
Who cannot join
- Previous surgeries on the affected shoulder.
- Previous fractures of the affected shoulder.
- History of traumatic shoulder dislocation.
- Shoulder pain originating from cervical spine pathology.
- Presence of pain in the elbow, wrist, or hand.
- Clinical diagnosis of rotator cuff-related shoulder pain or frozen shoulder.
Show all 11Show fewer
- Medical diagnosis of cardiovascular, rheumatologic, or neurological disorders.
- Pregnancy.
- Cognitive impairment.
- Concurrent physiotherapy treatment during the study period.
- Use of analgesic or anti-inflammatory medication within 24 hours prior to study assessments.
About this study
This randomized controlled clinical trial aims to evaluate the effectiveness of a standardized shoulder stabilization exercise program in amateur volleyball players diagnosed with atraumatic shoulder instability. Shoulder pain is one of the most prevalent musculoskeletal complaints, affecting up to two-thirds of the general population at some point in life and frequently leading to long-term symptoms, functional limitations, sleep disturbances, and high socio-economic costs. Atraumatic glenohumeral instability is particularly common among athletes performing overhead movements, such as volleyball players, who are repeatedly exposed to high-velocity external and internal rotation actions during serves and spikes.
The Derby Shoulder Instability Rehabilitation Programme (DSIRP) is a structured, reproducible protocol integrating strengthening, proprioceptive, neuromuscular control, plyometric, and speed-oriented exercises. Although widely used in clinical practice, evidence supporting its superiority over the natural progression of the condition remains limited. More than 80% of physiotherapists in the United Kingdom do not use specific standardized protocols for atraumatic shoulder instability, highlighting the need for high-quality clinical trials that evaluate structured rehabilitation approaches.
Read more
This study will recruit amateur volleyball players aged 20 to 30 years with a clinical diagnosis of atraumatic shoulder instability lasting more than 3 months. Participants will be randomized (1:1) into two parallel groups: an experimental group performing the DSIRP for 8 weeks (three 25-minute sessions per week), and a control group following a "wait-and-see" approach. Outcome measures will be assessed at baseline, 1 month, and 2 months (post-intervention). The primary outcomes include pain intensity measured with the Numeric Pain Rating Scale and shoulder disability measured with the Spanish version of the Shoulder Pain and Disability Index. Secondary outcomes include external rotation strength, grip strength, shoulder range of motion, and health-related quality of life assessed with the SF-12 questionnaire. All measurements use validated instruments with high reliability for clinical and research settings.
Statistical analysis will follow an intention-to-treat approach using mixed-model repeated-measures ANOVA or non-parametric alternatives when appropriate. Effect sizes and Bonferroni correction for multiple comparisons will be applied. An independent biostatistician blinded to allocation will conduct the analysis. The study follows CONSORT and TIDieR guidelines for reporting and intervention description.
This trial seeks to determine whether a structured, progressive stabilization protocol offers clinically meaningful improvements in pain, disability, strength, mobility, and quality of life compared with no intervention in young volleyball players with atraumatic shoulder instability. Results may support the implementation of standardized rehabilitation strategies in physiotherapy practice for this condition.
Read the detailed description
Atraumatic shoulder instability is a prevalent condition among athletes who perform repetitive overhead movements, particularly volleyball players. The biomechanical demands of serving, spiking, and blocking expose the glenohumeral joint to repeated high-velocity rotational forces, which may contribute to impaired neuromuscular control, altered proprioception, and insufficient dynamic stabilization. These factors can lead to recurrent symptoms of pain, weakness, and functional limitation, often persisting for extended periods and interfering with sports performance and daily activities.
Although physiotherapy is widely recognized as a first-line approach for managing atraumatic shoulder instability, clinical practice frequently lacks standardized and reproducible rehabilitation protocols. Existing programs vary significantly in content, dosage, and progression criteria, limiting consistency across clinicians and settings. The Derby Shoulder Instability Rehabilitation Programme (DSIRP) is one of the few structured intervention models specifically designed for this condition. It integrates strengthening, proprioception, plyometric exercises, and motor control tasks, with progression based on clearly defined functional milestones. However, despite its clinical use, robust comparative evidence supporting its effectiveness remains limited.
This randomized controlled trial aims to evaluate the clinical impact of an eight-week DSIRP-based intervention compared with no active treatment in amateur volleyball players aged 20 to 30 years with at least three months of atraumatic shoulder instability. The study follows CONSORT and TIDieR recommendations to ensure transparent reporting and comprehensive intervention description. Participants are randomly allocated in a 1:1 ratio to either the experimental group, which performs the structured exercise program three times per week, or the control group, which receives no intervention ("wait-and-see"). The analytical team remains blinded to group assignment.
The intervention is designed to address multiple dimensions of shoulder stability, including rotator-cuff strength, scapular control, reactive stability, and proprioceptive acuity. It progresses through phases that incorporate isometric and isotonic strengthening, closed-chain stability tasks, rhythmic stabilization, plyometric drills, and functional movement patterns relevant to overhead athletes. Session duration and frequency are standardized, but progression criteria ensure individualized advancement according to each participant's ability to meet predefined performance targets.
Outcome assessments are conducted at baseline, one month, and after the completion of the eight-week intervention. Measures span several domains relevant to shoulder instability, including pain intensity, self-reported disability, shoulder mobility, isometric strength, and overall health-related quality of life. All clinical instruments used in the study have demonstrated strong reliability and validity in previous research. The measurement protocol ensures standardized positioning and examiner consistency to reduce variability.
The statistical analysis incorporates repeated-measures models to evaluate changes over time and between groups. Parametric or non-parametric methods are selected based on data distribution, and effect sizes are calculated to quantify the magnitude of observed changes. A blinded biostatistician performs all analyses to minimize bias.
This study is designed to generate high-quality evidence on the usefulness of a structured, pathology-specific rehabilitation program for atraumatic shoulder instability in young overhead athletes. By comparing the DSIRP-based intervention with a no-treatment control condition, the trial aims to clarify whether a well-defined and reproducible exercise protocol leads to meaningful improvements in pain, function, strength, and mobility. Findings may inform clinical practice, support the adoption of standardized rehabilitation pathways, and contribute to reducing the variability that currently characterizes conservative management of this condition.
- Conditions
- Shoulder Instability
- Being tested
- Exercise
- Keywords
- voleyball, shoulder pain, instability, exercise, Derby Shoulder Instability Rehabilitation Programme, randomized controlled trial, overhead
- Medical subject headings
- Shoulder Pain, Motor Activity
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
ExerciseOther
Also called Derby Shoulder Instability Programme
Participants assigned to the intervention group will complete the Derby Shoulder Instability Rehabilitation Programme (DSIRP), a structured and progressive exercise-based protocol specifically designed for individuals with atraumatic shoulder instability. The program integrates strengthening exercises, proprioceptive and neuromuscular control training, plyometric drills, and speed-oriented stabilization tasks. Progression through the exercises is criterion-based, following predefined functional milestones to ensure appropriate challenge and individualized adaptation.
The DSIRP focuses on enhancing dynamic glenohumeral stability through rotator-cuff activation, scapular control, and kinetic-chain coordination. Each session includes components targeting isometric and isotonic strengthening, closed-chain stability tasks, rhythmic stabilization, rapid-response perturbation activities, and overhead-sport-specific movement patterns relevant to volleyball athletes.
| Study group | Role | What they receive |
|---|---|---|
| Control | No intervention | Wait and see during 8 weeks |
| Intervention group | Experimental | Participants assigned to the intervention group will complete the Derby Shoulder Instability Rehabilitation Programme (DSIRP), a structured and progressive exercise-based protocol specifically designed for individuals with atraumatic shoulder instability. Participants in this arm will perform the program three times per week, 25 minutes per session, over a total of 8 weeks. The intervention is supervised by trained physiotherapists, although progression criteria remain standardized to ensure reproducibility. No adjunct treatments (manual therapy, modalities, taping, etc.) are permitted during the intervention period. This arm aims to improve pain, functional capacity, proprioceptive control, shoulder mobility, and strength in young volleyball players with atraumatic instability, following the dosage and progression described in Bateman et al. (2015) and aligned with the intervention structure detailed in the study protocol Receives: Other: Exercise |
What is being measured
The primary outcome is the main question the study is designed to answer.
Pain intensity
Pain intensity will be assessed using the Numeric Pain Rating Scale (NPRS), an 11-point numerical rating scale ranging from 0 ("no pain") to 10 ("worst imaginable pain"). The NPRS has demonstrated adequate test-retest reliability, with intraclass correlation coefficients (ICC) ranging from 0.63 to 0.92, and strong internal consistency, with Cronbach's alpha values between 0.84 and 0.98, as previously reported in studies evaluating its psychometric properties (Stratford \& Spadoni, 2001; Jensen \& McFarland, 1993; Jensen et al., 1986)
Measured: From enrollment to the end of treatment at 8 weeks
Secondary outcomes (5)
Shoulder disability
Shoulder disability will be assessed using the Spanish version of the Shoulder Pain and Disability Index (SPADI), a self-reported questionnaire designed to measure shoulder pain and functional limitations through 13 items originally developed by Williams et al. (1995). The instrument has demonstrated the ability to discriminate between patients who improve and those who worsen (Roy et al., 2009), and its Spanish cross-cultural adaptation preserves the original structure and psychometric properties, providing a reliable and valid patient-reported outcome measure suitable for both clinical practice and research (Membrilla-Mesa et al., 2015)
Measured: From enrollment to the end of treatment at 8 weeks
External rotation strength
Isometric external rotation strength of the shoulder will be measured using the MicroFET 2 MT Digital Handheld Dynamometer (Hoggan Health Industries, West Draper, UT). Handheld dynamometry has shown good to excellent intra-examiner reliability for isometric shoulder strength assessment, with intraclass correlation coefficients ranging from 0.87 to 0.99, according to prior studies evaluating its reproducibility in clinical and research settings (McLaine et al., 2016; Holt et al., 2016)
Measured: From enrollment to the end of treatment at 8 weeks
Hand grip strength
Hand grip strength will be measured using a Jamar handheld dynamometer (Sammons Preston Rolyan, Bolingbrook, IL), a device widely recognized for its robustness and reproducibility. This instrument has demonstrated good to excellent intra-examiner reliability for isometric grip strength outcomes, with intraclass correlation coefficients ranging from 0.85 to 0.98 in previous validation studies (Roberts et al., 2011)
Measured: From enrollment to the end of treatment at 8 weeks
Shoulder mobility
Shoulder range of motion will be assessed for flexion, abduction, external rotation at 0°, external rotation at 90°, and internal rotation at 90° of abduction using a validated smartphone inclinometer application (Plaincode Software Solutions, Gunzenhausen, Germany). This tool has shown excellent inter-examiner reliability and validity in symptomatic individuals, with intraclass correlation coefficients greater than 0.80 for shoulder mobility measurements (Werner et al., 2014)
Measured: From enrollment to the end of treatment at 8 weeks
Health-related quality of life
Health-related quality of life will be measured using the Short Form-12 Health Survey (SF-12), which evaluates eight dimensions of perceived physical and mental health. This questionnaire has been widely validated across diverse populations and has consistently demonstrated strong reliability and construct validity for assessing global functional health status (Ware et al., 1996)
Measured: From enrollment to the end of treatment at 8 weeks
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted10 Feb 2026
- Study start1 May 2026 (estimated)
- Primary completion1 Jul 2026 (estimated)
- Study completion1 Aug 2026 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Shoulder InstabilityStudies 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
- Model description
- The study uses an interventional, parallel-group randomized controlled design to compare a standardized shoulder stabilization exercise program with a no-treatment control condition in amateur volleyball players with atraumatic shoulder instability. Participants are randomly assigned in a 1:1 ratio to one of the two study arms. The interventional group follows a structured rehabilitation protocol based on the Derby Shoulder Instability Rehabilitation Programme, conducted three times per week for eight weeks, while the control group receives no active intervention ("wait-and-see").
- Masking
- Double blind
- Who is masked
- Investigator, Outcomes assessor
- Enrolment
- 22 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Universidad Francisco de Vitoria
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Alberto Roldán, Universidad Francisco de Vitoria
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07400900
- Sponsor's protocol ID
- VolleyShoulder
- Status last verified
- Feb 2026
- First submitted
- 3 Feb 2026
- Last updated
- 4 May 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 4 May 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Effectiveness of a Standardised Stabilisation Exercise Protocol in Volleyball Players With Non-traumatic Shoulder Instability
- ClinicalTrials.gov ID
- NCT07400900
- Acronym / sponsor ID
- VolleyShoulder
- Conditions
- Shoulder Instability
- Keywords
- voleyball, shoulder pain, instability, exercise, Derby Shoulder Instability Rehabilitation Programme, randomized controlled trial, overhead
- Study type
- Interventional
- Recruitment status
- Not yet recruiting
- Enrolment
- 22 participants (estimated)
- Lead sponsor
- Universidad Francisco de VitoriaUniversity, hospital or other
- Study start
- 1 May 2026 (estimated)
- Primary completion
- 1 Jul 2026 (estimated)
- Study completion
- 1 Aug 2026 (estimated)
- First posted
- 10 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.
This randomized controlled clinical trial aims to evaluate the effectiveness of a standardized shoulder stabilization exercise program in amateur volleyball players diagnosed with atraumatic shoulder instability. Shoulder pain is one of the most prevalent musculoskeletal complaints, affecting up to two-thirds of the general population at some point in life and frequently leading to long-term symptoms, functional limitations, sleep disturbances, and high socio-economic costs. Atraumatic glenohumeral instability is particularly common among athletes performing overhead movements, such as volleyball players, who are repeatedly exposed to high-velocity external and internal rotation actions during serves and spikes.
The Derby Shoulder Instability Rehabilitation Programme (DSIRP) is a structured, reproducible protocol integrating strengthening, proprioceptive, neuromuscular control, plyometric, and speed-oriented exercises. Although widely used in clinical practice, evidence supporting its superiority over the natural progression of the condition remains limited. More than 80% of physiotherapists in the United Kingdom do not use specific standardized protocols for atraumatic shoulder instability, highlighting the need for high-quality clinical trials that evaluate structured rehabilitation approaches.
This study will recruit amateur volleyball players aged 20 to 30 years with a clinical diagnosis of atraumatic shoulder instability lasting more than 3 months. Participants will be randomized (1:1) into two parallel groups: an experimental group performing the DSIRP for 8 weeks (three 25-minute sessions per week), and a control group following a "wait-and-see" approach. Outcome measures will be assessed at baseline, 1 month, and 2 months (post-intervention). The primary outcomes include pain intensity measured with the Numeric Pain Rating Scale and shoulder disability measured with the Spanish version of the Shoulder Pain and Disability Index. Secondary outcomes include external rotation strength, grip strength, shoulder range of motion, and health-related quality of life assessed with the SF-12 questionnaire. All measurements use validated instruments with high reliability for clinical and research settings.
Statistical analysis will follow an intention-to-treat approach using mixed-model repeated-measures ANOVA or non-parametric alternatives when appropriate. Effect sizes and Bonferroni correction for multiple comparisons will be applied. An independent biostatistician blinded to allocation will conduct the analysis. The study follows CONSORT and TIDieR guidelines for reporting and intervention description.
This trial seeks to determine whether a structured, progressive stabilization protocol offers clinically meaningful improvements in pain, disability, strength, mobility, and quality of life compared with no intervention in young volleyball players with atraumatic shoulder instability. Results may support the implementation of standardized rehabilitation strategies in physiotherapy practice for this condition.
Detailed description
Atraumatic shoulder instability is a prevalent condition among athletes who perform repetitive overhead movements, particularly volleyball players. The biomechanical demands of serving, spiking, and blocking expose the glenohumeral joint to repeated high-velocity rotational forces, which may contribute to impaired neuromuscular control, altered proprioception, and insufficient dynamic stabilization. These factors can lead to recurrent symptoms of pain, weakness, and functional limitation, often persisting for extended periods and interfering with sports performance and daily activities.
Although physiotherapy is widely recognized as a first-line approach for managing atraumatic shoulder instability, clinical practice frequently lacks standardized and reproducible rehabilitation protocols. Existing programs vary significantly in content, dosage, and progression criteria, limiting consistency across clinicians and settings. The Derby Shoulder Instability Rehabilitation Programme (DSIRP) is one of the few structured intervention models specifically designed for this condition. It integrates strengthening, proprioception, plyometric exercises, and motor control tasks, with progression based on clearly defined functional milestones. However, despite its clinical use, robust comparative evidence supporting its effectiveness remains limited.
This randomized controlled trial aims to evaluate the clinical impact of an eight-week DSIRP-based intervention compared with no active treatment in amateur volleyball players aged 20 to 30 years with at least three months of atraumatic shoulder instability. The study follows CONSORT and TIDieR recommendations to ensure transparent reporting and comprehensive intervention description. Participants are randomly allocated in a 1:1 ratio to either the experimental group, which performs the structured exercise program three times per week, or the control group, which receives no intervention ("wait-and-see"). The analytical team remains blinded to group assignment.
The intervention is designed to address multiple dimensions of shoulder stability, including rotator-cuff strength, scapular control, reactive stability, and proprioceptive acuity. It progresses through phases that incorporate isometric and isotonic strengthening, closed-chain stability tasks, rhythmic stabilization, plyometric drills, and functional movement patterns relevant to overhead athletes. Session duration and frequency are standardized, but progression criteria ensure individualized advancement according to each participant's ability to meet predefined performance targets.
Outcome assessments are conducted at baseline, one month, and after the completion of the eight-week intervention. Measures span several domains relevant to shoulder instability, including pain intensity, self-reported disability, shoulder mobility, isometric strength, and overall health-related quality of life. All clinical instruments used in the study have demonstrated strong reliability and validity in previous research. The measurement protocol ensures standardized positioning and examiner consistency to reduce variability.
The statistical analysis incorporates repeated-measures models to evaluate changes over time and between groups. Parametric or non-parametric methods are selected based on data distribution, and effect sizes are calculated to quantify the magnitude of observed changes. A blinded biostatistician performs all analyses to minimize bias.
This study is designed to generate high-quality evidence on the usefulness of a structured, pathology-specific rehabilitation program for atraumatic shoulder instability in young overhead athletes. By comparing the DSIRP-based intervention with a no-treatment control condition, the trial aims to clarify whether a well-defined and reproducible exercise protocol leads to meaningful improvements in pain, function, strength, and mobility. Findings may inform clinical practice, support the adoption of standardized rehabilitation pathways, and contribute to reducing the variability that currently characterizes conservative management of this condition.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Double blind (investigator, outcomes assessor)
- Number of arms
- 2
- Model description
- The study uses an interventional, parallel-group randomized controlled design to compare a standardized shoulder stabilization exercise program with a no-treatment control condition in amateur volleyball players with atraumatic shoulder instability. Participants are randomly assigned in a 1:1 ratio to one of the two study arms. The interventional group follows a structured rehabilitation protocol based on the Derby Shoulder Instability Rehabilitation Programme, conducted three times per week for eight weeks, while the control group receives no active intervention ("wait-and-see").
| Arm | Type | Receives |
|---|---|---|
| Control | No intervention | –Wait and see during 8 weeks |
| Intervention group | Experimental | Other: ExerciseParticipants assigned to the intervention group will complete the Derby Shoulder Instability Rehabilitation Programme (DSIRP), a structured and progressive exercise-based protocol specifically designed for individuals with atraumatic shoulder instability. Participants in this arm will perform the program three times per week, 25 minutes per session, over a total of 8 weeks. The intervention is supervised by trained physiotherapists, although progression criteria remain standardized to ensure reproducibility. No adjunct treatments (manual therapy, modalities, taping, etc.) are permitted during the intervention period. This arm aims to improve pain, functional capacity, proprioceptive control, shoulder mobility, and strength in young volleyball players with atraumatic instability, following the dosage and progression described in Bateman et al. (2015) and aligned with the intervention structure detailed in the study protocol |
Who may qualify
- Ages
- 18 to 30 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult
Key inclusion criteria (4 listed)
- Amateur volleyball players.
- Age range: 18 to 30 years.
- Clinical diagnosis of atraumatic shoulder instability.
- Symptom duration greater than 3 months.
Key exclusion criteria (11 listed)
- Previous surgeries on the affected shoulder.
- Previous fractures of the affected shoulder.
- History of traumatic shoulder dislocation.
- Shoulder pain originating from cervical spine pathology.
- Presence of pain in the elbow, wrist, or hand.
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 |
|---|---|---|
| ExerciseAlso: Derby Shoulder Instability ProgrammeParticipants assigned to the intervention group will complete the Derby Shoulder Instability Rehabilitation Programme (DSIRP), a structured and progressive exercise-based protocol specifically designed for individuals with atraumatic shoulder instability. The program integrates strengthening exercises, proprioceptive and neuromuscular control training, plyometric drills, and speed-oriented stabilization tasks. Progression through the exercises is criterion-based, following predefined functional milestones to ensure appropriate challenge and individualized adaptation. The DSIRP focuses on enhancing dynamic glenohumeral stability through rotator-cuff activation, scapular control, and kinetic-chain coordination. Each session includes components targeting isometric and isotonic strengthening, closed-chain stability tasks, rhythmic stabilization, rapid-response perturbation activities, and overhead-sport-specific movement patterns relevant to volleyball athletes. | Other | Intervention group |
Primary outcome
Pain intensity
Time frame: From enrollment to the end of treatment at 8 weeks
Pain intensity will be assessed using the Numeric Pain Rating Scale (NPRS), an 11-point numerical rating scale ranging from 0 ("no pain") to 10 ("worst imaginable pain"). The NPRS has demonstrated adequate test-retest reliability, with intraclass correlation coefficients (ICC) ranging from 0.63 to 0.92, and strong internal consistency, with Cronbach's alpha values between 0.84 and 0.98, as previously reported in studies evaluating its psychometric properties (Stratford \& Spadoni, 2001; Jensen \& McFarland, 1993; Jensen et al., 1986)
5 secondary outcomes
Shoulder disability
Time frame: From enrollment to the end of treatment at 8 weeks
External rotation strength
Time frame: From enrollment to the end of treatment at 8 weeks
Hand grip strength
Time frame: From enrollment to the end of treatment at 8 weeks
Shoulder mobility
Time frame: From enrollment to the end of treatment at 8 weeks
Health-related quality of life
Time frame: From enrollment to the end of treatment at 8 weeks
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 4 May 2026.
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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.
The record lists no contact. Use the official record to reach the sponsor.
Questions about this trial
What is this clinical trial studying?
A study testing Exercise in people with Shoulder Instability, run by Universidad Francisco de Vitoria.
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 4 inclusion and 11 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: opening soon, as of the sponsor's last update on 4 May 2026. Status can change between updates, so confirm with the study contact before making plans.
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?
Pain intensity (time frame: From enrollment to the end of treatment at 8 weeks). 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 4 May 2026.