Hip Joint DisordersHIP- STRNCT07495371
Passive Static Stretching for Improving Hip Range of Motion in Patients and Healthy Individuals
An observational study of Hip Joint Disorders and Recovery After Total Hip Arthroplasty, run by Omicron beta research at 1 site in Italy.
Trial summary
This pilot study evaluates whether passive static stretching can improve hip movement in three groups: people who have had hip replacement surgery, individuals with long-term hip pain, and healthy volunteers. Read more about this study
- Who is it for?
- Any ageHealthy volunteers can take part
- Conditions the study is for
- Hip Joint Disorders, Recovery After Total Hip Arthroplasty, Healthy Individuals
- How many people
- 12 participants
- Where
- 1 siteItaly
- Study dates
- 3 Nov 2025to 3 Dec 2025
- Phase
- Observational
- 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 Any age
- All sexes
- Healthy volunteers accepted
- Child, Adult, Older adult
Study population: The study included 12 adult participants (7 women, 5 men; mean age 52.5 ± 6.8 years) divided into three groups: Group A: 4 patients who had undergone total hip arthroplasty (THA) Group B: 4 patients with chronic non-surgical hip pain Group C: 4 healthy individuals with no prior hip or joint pathology Participants were selected based on their ability to safely perform passive hip stretching, absence of neurological or musculoskeletal comorbidities affecting motor control, and willingness to complete the 4-week intervention protocol. Written informed consent was obtained from all participants.
Who may be able to join
- Adults able to participate in a 4-week passive hip stretching protocol
- No contraindications to passive hip stretching
- No neurological or musculoskeletal comorbidities affecting motor control
- Willingness and ability to provide written informed consent
Who cannot join
- Presence of neurological or musculoskeletal conditions that impair hip movement or motor control
- Contraindications to stretching (e.g., recent surgery not related to hip arthroplasty, acute injuries)
- Inability or unwillingness to complete the full 4-week study protocol
Trial locations and contacts
1 site in 1 country.
About this study
Official title: Effects Of Passive Static Stretching On Hip Range Of Motion In Patients With Joint Pathologies And Healthy Individuals: A Pilot Study
This pilot study evaluates whether passive static stretching can improve hip movement in three groups: people who have had hip replacement surgery, individuals with long-term hip pain, and healthy volunteers. Participants will follow a 4-week stretching program, doing exercises three times per week under the supervision of a trained clinician. Hip range of motion will be measured before and after the program using accurate electronic sensors. The goal is to determine if passive static stretching is a safe and effective way to increase hip flexibility and support daily activities. The study involves no new medications or invasive procedures and is considered low risk.
Read the detailed description
This pilot study investigates the effects of passive static stretching on hip range of motion (ROM) in three populations: patients who have undergone total hip arthroplasty (THA), individuals with chronic non-surgical hip pain, and healthy volunteers. A total of 12 participants will be enrolled, divided equally into three groups.
Participants will follow a four-week stretching program, performing assisted hip flexion and abduction exercises three times per week, with each stretch held for 30 seconds. All sessions are supervised by a trained kinesiologist to ensure proper alignment, submaximal intensity, and participant safety.
Hip ROM will be measured pre- and post-intervention using high-precision triaxial electronic sensors (accelerometers and gyroscopes) under standardized conditions. The study will track changes in hip flexion and abduction, monitor for adverse events, and assess compliance.
The purpose is to explore whether passive static stretching is a safe, feasible, and effective method to enhance hip mobility across different populations, providing preliminary data for future larger studies.
- Keywords
- Hip stretching, ROM improvement, Hip arthroplasty, Healthy subjects, Pilot rehabilitation study, Flexibility assessment
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
| Study group | Role | What they receive |
|---|---|---|
| Hip Arthroplasty Patients | Patients who underwent hip arthroplasty. Intervention: passive static stretching to improve hip range of motion (ROM). Assessment of flexibility before and after stretching sessions. | |
| Chronic Hip Pain Patients | Patients with chronic hip pain not due to arthroplasty. Intervention: passive static stretching to evaluate improvement in hip ROM. Pre- and post-intervention flexibility assessments performed. | |
| Healthy Subjects | Healthy individuals without hip pathologies. Intervention: passive static stretching applied to hip joint. Flexibility measured before and after stretching sessions. |
What is being measured
The primary outcome is the main question the study is designed to answer.
Hip Range of Motion (Flexion and Abduction)
Hip ROM was measured using high-precision triaxial electronic sensors equipped with accelerometers and gyroscopes (Sensorize). Participants were assessed in standardized positions over the hip joint, with data sampled at 200 Hz to determine maximal flexion and abduction angles. Measurements were taken pre- and post-intervention across all groups.
Measured: 4 weeks (pre- and post-intervention)
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted27 Mar 2026
- Study start3 Nov 2025
- Primary completion28 Nov 2025
- Study completion3 Dec 2025
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (5)Papers the sponsor has linked to this study.
- Other trials for Hip Joint DisordersStudies 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
- Prospective
- Enrolment
- 12 participants (actual)
Sponsor and investigators
- Lead sponsor
- Omicron beta research
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Emanuele Novelli, Omicron beta research
- Investigators
- Emanuele Novelli, MSc Kinesiology, Osteopath, Principal investigator, OmicronBeta Research
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07495371
- Sponsor's protocol ID
- HIP-STRETCH- 2025- 01
- Acronym
- HIP- STR
- Status last verified
- Mar 2026
- First submitted
- 22 Mar 2026
- Last updated
- 27 Mar 2026
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No: Individual participant data will not be shared to protect participant privacy and confidentiality. Given the small sample size and sensitive nature of the measurements, sharing raw data could potentially allow identification of participants. Data will be used solely for the purposes of this study.
Publications
Kobsar D, Charlton JM, Tse CTF, Esculier JF, Graffos A, Krowchuk NM, Thatcher D, Hunt MA. Validity and reliability of wearable inertial sensors in healthy adult walking: a systematic review and meta-analysis. J Neuroeng Rehabil. 2020 May 11;17(1):62. doi: 10.1186/s12984-020-00685-3.
PubMed 32393301Hopewell S, Chan AW, Collins GS, Hrobjartsson A, Moher D, Schulz KF, Tunn R, Aggarwal R, Berkwits M, Berlin JA, Bhandari N, Butcher NJ, Campbell MK, Chidebe RCW, Elbourne D, Farmer A, Fergusson DA, Golub RM, Goodman SN, Hoffmann TC, Ioannidis JPA, Kahan BC, Knowles RL, Lamb SE, Lewis S, Loder E, Offringa M, Ravaud P, Richards DP, Rockhold FW, Schriger DL, Siegfried NL, Staniszewska S, Taylor RS, Thabane L, Torgerson D, Vohra S, White IR, Boutron I. CONSORT 2025 statement: updated guideline for reporting randomised trials. BMJ. 2025 Apr 14;389:e081123. doi: 10.1136/bmj-2024-081123.
PubMed 40228833Yildirim MS, Ozyurek S, Tosun O, Uzer S, Gelecek N. Comparison of effects of static, proprioceptive neuromuscular facilitation and Mulligan stretching on hip flexion range of motion: a randomized controlled trial. Biol Sport. 2016 Mar;33(1):89-94. doi: 10.5604/20831862.1194126. Epub 2016 Feb 8.
PubMed 26929476Lempke L, Wilkinson R, Murray C, Stanek J. The Effectiveness of PNF Versus Static Stretching on Increasing Hip-Flexion Range of Motion. J Sport Rehabil. 2018 May 1;27(3):289-294. doi: 10.1123/jsr.2016-0098. Epub 2018 May 22.
PubMed 28182516Behm DG, Chaouachi A. A review of the acute effects of static and dynamic stretching on performance. Eur J Appl Physiol. 2011 Nov;111(11):2633-51. doi: 10.1007/s00421-011-1879-2. Epub 2011 Mar 4.
PubMed 21373870
Study at a glance
From the registry record, last updated by the sponsor on 27 Mar 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Effects Of Passive Static Stretching On Hip Range Of Motion In Patients With Joint Pathologies And Healthy Individuals: A Pilot Study
- ClinicalTrials.gov ID
- NCT07495371
- Acronym / sponsor ID
- HIP- STR / HIP-STRETCH- 2025- 01
- Keywords
- Hip stretching, ROM improvement, Hip arthroplasty, Healthy subjects, Pilot rehabilitation study, Flexibility assessment
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 12 participants (actual)
- Lead sponsor
- Omicron beta researchUniversity, hospital or other
- Study start
- 3 Nov 2025 (actual)
- Primary completion
- 28 Nov 2025 (actual)
- Study completion
- 3 Dec 2025 (actual)
- First posted
- 27 Mar 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 pilot study evaluates whether passive static stretching can improve hip movement in three groups: people who have had hip replacement surgery, individuals with long-term hip pain, and healthy volunteers. Participants will follow a 4-week stretching program, doing exercises three times per week under the supervision of a trained clinician. Hip range of motion will be measured before and after the program using accurate electronic sensors. The goal is to determine if passive static stretching is a safe and effective way to increase hip flexibility and support daily activities. The study involves no new medications or invasive procedures and is considered low risk.
Detailed description
This pilot study investigates the effects of passive static stretching on hip range of motion (ROM) in three populations: patients who have undergone total hip arthroplasty (THA), individuals with chronic non-surgical hip pain, and healthy volunteers. A total of 12 participants will be enrolled, divided equally into three groups.
Participants will follow a four-week stretching program, performing assisted hip flexion and abduction exercises three times per week, with each stretch held for 30 seconds. All sessions are supervised by a trained kinesiologist to ensure proper alignment, submaximal intensity, and participant safety.
Hip ROM will be measured pre- and post-intervention using high-precision triaxial electronic sensors (accelerometers and gyroscopes) under standardized conditions. The study will track changes in hip flexion and abduction, monitor for adverse events, and assess compliance.
The purpose is to explore whether passive static stretching is a safe, feasible, and effective method to enhance hip mobility across different populations, providing preliminary data for future larger studies.
Study design
- Observational model
- Cohort
- Time perspective
- Prospective
- Number of arms
- 3
| Arm | Type | Receives |
|---|---|---|
| Hip Arthroplasty Patients | – | –Patients who underwent hip arthroplasty. Intervention: passive static stretching to improve hip range of motion (ROM). Assessment of flexibility before and after stretching sessions. |
| Chronic Hip Pain Patients | – | –Patients with chronic hip pain not due to arthroplasty. Intervention: passive static stretching to evaluate improvement in hip ROM. Pre- and post-intervention flexibility assessments performed. |
| Healthy Subjects | – | –Healthy individuals without hip pathologies. Intervention: passive static stretching applied to hip joint. Flexibility measured before and after stretching sessions. |
Who may qualify
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Child, Adult, Older adult
- Study population
- The study included 12 adult participants (7 women, 5 men; mean age 52.5 ± 6.8 years) divided into three groups: Group A: 4 patients who had undergone total hip arthroplasty (THA) Group B: 4 patients with chronic non-surgical hip pain Group C: 4 healthy individuals with no prior hip or joint pathology Participants were selected based on their ability to safely perform passive hip stretching, absence of neurological or musculoskeletal comorbidities affecting motor control, and willingness to complete the 4-week intervention protocol. Written informed consent was obtained from all participants.
Key inclusion criteria (4 listed)
- Adults able to participate in a 4-week passive hip stretching protocol
- No contraindications to passive hip stretching
- No neurological or musculoskeletal comorbidities affecting motor control
- Willingness and ability to provide written informed consent
Key exclusion criteria (3 listed)
- Presence of neurological or musculoskeletal conditions that impair hip movement or motor control
- Contraindications to stretching (e.g., recent surgery not related to hip arthroplasty, acute injuries)
- Inability or unwillingness to complete the full 4-week study protocol
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Primary outcome
Hip Range of Motion (Flexion and Abduction)
Time frame: 4 weeks (pre- and post-intervention)
Hip ROM was measured using high-precision triaxial electronic sensors equipped with accelerometers and gyroscopes (Sensorize). Participants were assessed in standardized positions over the hip joint, with data sampled at 200 Hz to determine maximal flexion and abduction angles. Measurements were taken pre- and post-intervention across all groups.
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 27 Mar 2026.
- Background: PubMed 32393301Kobsar D, Charlton JM, Tse CTF, Esculier JF, Graffos A, Krowchuk NM, Thatcher D, Hunt MA. Validity and reliability of wearable inertial sensors in healthy adult walking: a systematic review and meta-analysis. J Neuroeng Rehabil. 2020 May 11;17(1):62. doi: 10.1186/s12984-020-00685-3.
- Background: PubMed 40228833Hopewell S, Chan AW, Collins GS, Hrobjartsson A, Moher D, Schulz KF, Tunn R, Aggarwal R, Berkwits M, Berlin JA, Bhandari N, Butcher NJ, Campbell MK, Chidebe RCW, Elbourne D, Farmer A, Fergusson DA, Golub RM, Goodman SN, Hoffmann TC, Ioannidis JPA, Kahan BC, Knowles RL, Lamb SE, Lewis S, Loder E, Offringa M, Ravaud P, Richards DP, Rockhold FW, Schriger DL, Siegfried NL, Staniszewska S, Taylor RS, Thabane L, Torgerson D, Vohra S, White IR, Boutron I. CONSORT 2025 statement: updated guideline for reporting randomised trials. BMJ. 2025 Apr 14;389:e081123. doi: 10.1136/bmj-2024-081123.
- Background: PubMed 26929476Yildirim MS, Ozyurek S, Tosun O, Uzer S, Gelecek N. Comparison of effects of static, proprioceptive neuromuscular facilitation and Mulligan stretching on hip flexion range of motion: a randomized controlled trial. Biol Sport. 2016 Mar;33(1):89-94. doi: 10.5604/20831862.1194126. Epub 2016 Feb 8.
- Background: PubMed 28182516Lempke L, Wilkinson R, Murray C, Stanek J. The Effectiveness of PNF Versus Static Stretching on Increasing Hip-Flexion Range of Motion. J Sport Rehabil. 2018 May 1;27(3):289-294. doi: 10.1123/jsr.2016-0098. Epub 2018 May 22.
- Background: PubMed 21373870Behm DG, Chaouachi A. A review of the acute effects of static and dynamic stretching on performance. Eur J Appl Physiol. 2011 Nov;111(11):2633-51. doi: 10.1007/s00421-011-1879-2. Epub 2011 Mar 4.
- Individual participant dataSharing planned: No. Individual participant data will not be shared to protect participant privacy and confidentiality. Given the small sample size and sensitive nature of the measurements, sharing raw data could potentially allow identification of participants. Data will be used solely for the purposes of this study.
Related trials for Hip Joint Disorders
Not yet recruitingObservational study
3D-Printed Pelvic Models for Planning Complex Total Hip Arthroplasty
Developmental Dysplasia of the Hip, Acetabular Bone Loss
Not yet recruiting
Comparison of Telerehabilitation and Usual Rehabilitation After Knee or Hip Surgery
Orthopedic Surgery, Rehabilitation
RecruitingObservational study
The restor3d Outcomes Registry
Joint Replacement, Arthropathy
Recruiting
Comparison of Surgery With Prehabilitation, Direct Surgery and Rehabilitation for Patients With Femoroacetabular Impingement
Femoroacetabular Impingement Syndrome
Not yet recruiting
Effects of Low-Load Blood Flow Restriction Resistance Training With and Without Hip Abductor Strengthening in Patients With Knee Osteoarthritis.(BFR)
Knee Osteoarthritis
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.
Emanuele Novelli, MSc Kinesiology, Osteopath principal investigator
OmicronBeta Research
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 Hip Joint Disorders and Recovery After Total Hip Arthroplasty, run by Omicron beta research at 1 site in Italy.
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 3 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 27 Mar 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 Italy. 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?
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?
Hip Range of Motion (Flexion and Abduction) (time frame: 4 weeks (pre- and post-intervention)). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT07495371, which also lists 5 linked publications.
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 27 Mar 2026.