Assessment of Hip Strength, Range of Motion, EMG Activation, and Landing Mechanics in Healthy SubjectsNCT07025434
Effects of Hip Bump Manipulation Versus Sham Treatment in Healthy Adults
A study testing Hip Bump Manipulation in people with Assessment of Hip Strength, Range of Motion, EMG Activation, and Landing Mechanics in Healthy Subjects and Healthy Adult Subjects, run by Dominican University New York at 1 site in United States.
Trial summary
The purpose of this study is to objectively assess the effects of hip bump manipulation (HBM) on a healthy population aged 18-45 years. We hypothesize that the HBM will improve hip internal rotation passive range of motion, improve the strength of the hip external rotators, decrease compensatory motions in hip flexion… Read more about this study
- Who is it for?
- Ages 18 to 45 yearsHealthy volunteers can take part
- Conditions the study is for
- Assessment of Hip Strength, Range of Motion, EMG Activation, and Landing Mechanics in Healthy Subjects, Healthy Adult Subjects
- What is being tested?
- Hip Bump Manipulation
- Type of treatment
- Surgery or procedure
- Could I receive a placebo?
- Yes, some participants may receive a placebo
- How many people
- 60 participants
- Where
- 1 siteUnited States
- Study dates
- 20 Jun 2025to May 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 45 years
- All sexes
- Healthy volunteers accepted
- Adult
Who may be able to join
- Healthy individuals
- Aged 18-45 years old
Who cannot join
- Diagnosed demoroacetabular labral tear
- Diagnosed osteoarthritis (OA)
- Current or recent (within the past 6 months) low back pain
- Hip or pelvic pain
- Lower extremity injury within the past six months
- Diagnosed scoliosis
- History of surgery involving the femoroacetabular joint (FAJ)
- Known allergic reaction to adhesive or shaving cream used for EMG placement
Trial locations and contacts
1 site in 1 country. Contact the study team or a site near you to ask about taking part.
United States1 site, 1 recruiting
- Recruiting
Dominican University New York
Orangeburg, New York, 10962
Ayse Edeer, B.S, M.S, Ph.D., (845) 848-7615, ayse.edeer@duny.edu
Karl Rusch, B.S., DSc, DPT, (845) 848-6046, karl.rusch@duny.edu
About this study
Official title: Effects of Hip Bump Manipulation Versus Sham Treatment on Hip Internal Rotation, External Rotator Strength, and Bipodal Landing in Healthy Adults Aged 18-45: A Single-Blinded Randomized Controlled Trial
The purpose of this study is to objectively assess the effects of hip bump manipulation (HBM) on a healthy population aged 18-45 years. We hypothesize that the HBM will improve hip internal rotation passive range of motion, improve the strength of the hip external rotators, decrease compensatory motions in hip flexion during active range of motion, and improve bipodal landing mechanics.
Human participants will be analyzed to determine whether the manipulation produces the intended clinical outcomes. While clinicians commonly use this technique, its effectiveness has yet to be substantiated through research. This technique is a high velocity low amplitude thrust to the greater trochanter which theorizes the quick stretch of the external rotator muscles and may improve a malpositioned femoral head within the acetabulum. These improvements may positively affect functional movements such as bipodal landing.
- Conditions
- Assessment of Hip Strength, Range of Motion, EMG Activation, and Landing Mechanics in Healthy Subjects, Healthy Adult Subjects
- Being tested
- Hip Bump Manipulation, Sham (No Treatment)
- Keywords
- Hip Bump Manipulation, Unrestrained Femoral Internal Rotation, UFIR, HVLAT
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Hip Bump ManipulationProcedure or surgery
Also called UFIR, Unrestrained Femoral Internal Rotation
This technique is a high velocity low amplitude thrust (HVLAT) directly posterior to the greater trochanter which theorizes the quick stretch of the external rotator muscles and may improve a malpositioned femoral head within the acetabulum.
Sham (No Treatment)Procedure or surgery
Iliac Crest Sham Manipulation
| Study group | Role | What they receive |
|---|---|---|
| Group A: Intervention | Experimental | Hip Bump Manipulation (UFIR) Receives: Procedure: Hip Bump Manipulation |
| Group B: Control | Sham comparator | Iliac Crest Bump Sham Manipulation Receives: Procedure: Sham (No Treatment) |
What is being measured
The primary outcome is the main question the study is designed to answer.
Hip External Rotation Strength
Measured with ActivForce Handheld Dynamometry. 3 trials for an average Mean Voluntary Isometric Contraction
Measured: "From pre-intervention to post-intervention within a single session lasting approximately 20 minutes."
Hip Internal Rotation Range of Motion
Hip Internal rotation measured in a seat position 90/90 position. Measured with IPhone Digital Goniometry. 3 trials with a calculated average
Measured: "From pre-intervention to post-intervention within a single session lasting approximately 20 minutes."
Hip EMG Muscle Activation
Delsys Trigno Wireless System will be used to monitor changes in muscle activation between the Tensor Fascia Latae, Gluteus Medius, and Gluteus Maximus. During seated isometric external rotation contraction and bipodal landing. EMG will be retrieved on the 2nd attempt out of 3 trials.
Measured: "From pre-intervention to post-intervention within a single session lasting approximately 20 minutes."
Bipodal Landing
Kinvent K-Delta Force Plates used to measure changes in bipodal landing mechanics including force distribution, time to stabilization, etc. 3 trials will be conducted to present average values
Measured: "From pre-intervention to post-intervention within a single session lasting approximately 20 minutes."
Secondary outcomes (2)
Hip Deviation with Active Assisted Hip Flexion Range of Motion
Deviation resulting in excessive abduction and external rotation during knee to chest active assisted range of motion. Video recording before and after to observe changes pre and post intervention.
Measured: "From pre-intervention to post-intervention within a single session lasting approximately 20 minutes."
Hip External Rotation Range of Motion
Measured to compare the change in External and Internal Rotation range of motion relationship. Measure with iPhone Digital Goniometry. 3 trials will be conducted to present an average value of ROM
Measured: "From pre-intervention to post-intervention within a single session lasting approximately 20 minutes."
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted17 Jun 2025
- Study start20 Jun 2025
- Primary completionMar 2026 (estimated)
- Study completionMay 2026 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (3)Papers the sponsor has linked to this study.
- Other trials for Assessment of Hip Strength, Range of Motion, EMG Activation, and Landing Mechanics in Healthy SubjectsStudies 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
- Basic science
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Model description
- Two-Arm Parallel Group Randomized Controlled Trial (RCT) Group A: Intervention Group B: Control (Sham)
- Masking
- Single blind
- Who is masked
- Participant
- Enrolment
- 60 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Dominican University New York
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
- Investigators
- Ayse Edeer, B.S., M.S., Ph.D., Study chair, Dominican University New York
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07025434
- Sponsor's protocol ID
- 2025-0328-01
- Status last verified
- Oct 2025
- First submitted
- 9 Jun 2025
- Last updated
- 14 Oct 2025
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- Undecided: De-identified individual participant data, including demographic information and outcome measures, will be made publicly available as part of the research publication. All personal identifiers will be removed, and any video recordings of movement deviations will either not be shared or will have faces obscured to maintain participant privacy. Data will be provided in a format consistent with ethical guidelines and institutional requirements.
Publications
van Melick N, Meddeler BM, Hoogeboom TJ, Nijhuis-van der Sanden MWG, van Cingel REH. How to determine leg dominance: The agreement between self-reported and observed performance in healthy adults. PLoS One. 2017 Dec 29;12(12):e0189876. doi: 10.1371/journal.pone.0189876. eCollection 2017.
PubMed 29287067Kazemi M, Leguard SH, Lilja S, Mahaise S. A clinical crossover trial of the effect of manipulative therapy on pain and passive and active range of motion of the painful hip. J Can Chiropr Assoc. 2021 Dec;65(3):318-329.
PubMed 35197646Bazett-Jones DM, Tylinksi T, Krstic J, Stromquist A, Sparks J. PEAK HIP MUSCLE TORQUE MEASUREMENTS ARE INFLUENCED BY SAGITTAL PLANE HIP POSITION. Int J Sports Phys Ther. 2017 Aug;12(4):535-542.
PubMed 28900559
Study at a glance
From the registry record, last updated by the sponsor on 14 Oct 2025. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Effects of Hip Bump Manipulation Versus Sham Treatment on Hip Internal Rotation, External Rotator Strength, and Bipodal Landing in Healthy Adults Aged 18-45: A Single-Blinded Randomized Controlled Trial
- ClinicalTrials.gov ID
- NCT07025434
- Acronym / sponsor ID
- 2025-0328-01
- Conditions
- Assessment of Hip Strength, Range of Motion, EMG Activation, and Landing Mechanics in Healthy Subjects, Healthy Adult Subjects
- Keywords
- Hip Bump Manipulation, Unrestrained Femoral Internal Rotation, UFIR, HVLAT
- Study type
- Interventional
- Recruitment status
- Recruiting
- Enrolment
- 60 participants (estimated)
- Lead sponsor
- Dominican University New YorkUniversity, hospital or other
- Study start
- 20 Jun 2025 (actual)
- Primary completion
- Mar 2026 (estimated)
- Study completion
- May 2026 (estimated)
- First posted
- 17 Jun 2025 (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.
The purpose of this study is to objectively assess the effects of hip bump manipulation (HBM) on a healthy population aged 18-45 years. We hypothesize that the HBM will improve hip internal rotation passive range of motion, improve the strength of the hip external rotators, decrease compensatory motions in hip flexion during active range of motion, and improve bipodal landing mechanics.
Human participants will be analyzed to determine whether the manipulation produces the intended clinical outcomes. While clinicians commonly use this technique, its effectiveness has yet to be substantiated through research. This technique is a high velocity low amplitude thrust to the greater trochanter which theorizes the quick stretch of the external rotator muscles and may improve a malpositioned femoral head within the acetabulum. These improvements may positively affect functional movements such as bipodal landing.
Study design
- Primary purpose
- Basic science
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Single blind (participant)
- Number of arms
- 2
- Model description
- Two-Arm Parallel Group Randomized Controlled Trial (RCT) Group A: Intervention Group B: Control (Sham)
| Arm | Type | Receives |
|---|---|---|
| Group A: Intervention | Experimental | Procedure: Hip Bump ManipulationHip Bump Manipulation (UFIR) |
| Group B: Control | Sham comparator | Procedure: Sham (No Treatment)Iliac Crest Bump Sham Manipulation |
Who may qualify
- Ages
- 18 to 45 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult
Key inclusion criteria (2 listed)
- Healthy individuals
- Aged 18-45 years old
Key exclusion criteria (8 listed)
- Diagnosed demoroacetabular labral tear
- Diagnosed osteoarthritis (OA)
- Current or recent (within the past 6 months) low back pain
- Hip or pelvic pain
- Lower extremity injury within the past six months
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 |
|---|---|---|
| Hip Bump ManipulationAlso: UFIR, Unrestrained Femoral Internal RotationThis technique is a high velocity low amplitude thrust (HVLAT) directly posterior to the greater trochanter which theorizes the quick stretch of the external rotator muscles and may improve a malpositioned femoral head within the acetabulum. | Procedure or surgery | Group A: Intervention |
| Sham (No Treatment)Iliac Crest Sham Manipulation | Procedure or surgery | Group B: Control |
Primary outcome
Hip External Rotation Strength
Time frame: "From pre-intervention to post-intervention within a single session lasting approximately 20 minutes."
Measured with ActivForce Handheld Dynamometry. 3 trials for an average Mean Voluntary Isometric Contraction
Hip Internal Rotation Range of Motion
Time frame: "From pre-intervention to post-intervention within a single session lasting approximately 20 minutes."
Hip Internal rotation measured in a seat position 90/90 position. Measured with IPhone Digital Goniometry. 3 trials with a calculated average
Hip EMG Muscle Activation
Time frame: "From pre-intervention to post-intervention within a single session lasting approximately 20 minutes."
Delsys Trigno Wireless System will be used to monitor changes in muscle activation between the Tensor Fascia Latae, Gluteus Medius, and Gluteus Maximus. During seated isometric external rotation contraction and bipodal landing. EMG will be retrieved on the 2nd attempt out of 3 trials.
Bipodal Landing
Time frame: "From pre-intervention to post-intervention within a single session lasting approximately 20 minutes."
Kinvent K-Delta Force Plates used to measure changes in bipodal landing mechanics including force distribution, time to stabilization, etc. 3 trials will be conducted to present average values
2 secondary outcomes
Hip Deviation with Active Assisted Hip Flexion Range of Motion
Time frame: "From pre-intervention to post-intervention within a single session lasting approximately 20 minutes."
Hip External Rotation Range of Motion
Time frame: "From pre-intervention to post-intervention within a single session lasting approximately 20 minutes."
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 14 Oct 2025.
- Background: PubMed 29287067van Melick N, Meddeler BM, Hoogeboom TJ, Nijhuis-van der Sanden MWG, van Cingel REH. How to determine leg dominance: The agreement between self-reported and observed performance in healthy adults. PLoS One. 2017 Dec 29;12(12):e0189876. doi: 10.1371/journal.pone.0189876. eCollection 2017.
- Background: PubMed 35197646Kazemi M, Leguard SH, Lilja S, Mahaise S. A clinical crossover trial of the effect of manipulative therapy on pain and passive and active range of motion of the painful hip. J Can Chiropr Assoc. 2021 Dec;65(3):318-329.
- Background: PubMed 28900559Bazett-Jones DM, Tylinksi T, Krstic J, Stromquist A, Sparks J. PEAK HIP MUSCLE TORQUE MEASUREMENTS ARE INFLUENCED BY SAGITTAL PLANE HIP POSITION. Int J Sports Phys Ther. 2017 Aug;12(4):535-542.
- Related InfoLink provided by the sponsor.
- Related InfoLink provided by the sponsor.
- Related InfoLink provided by the sponsor.
- Related InfoLink provided by the sponsor.
- Related InfoLink provided by the sponsor.
- Related InfoLink provided by the sponsor.
- Individual participant dataSharing planned: Undecided. De-identified individual participant data, including demographic information and outcome measures, will be made publicly available as part of the research publication. All personal identifiers will be removed, and any video recordings of movement deviations will either not be shared or will have faces obscured to maintain participant privacy. Data will be provided in a format consistent with ethical guidelines and institutional requirements.
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.
Ayse Edeer, B.S., M.S., Ph.D. study chair
Dominican University New York
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Hip Bump Manipulation in people with Assessment of Hip Strength, Range of Motion, EMG Activation, and Landing Mechanics in Healthy Subjects and Healthy Adult Subjects, run by Dominican University New York at 1 site in United States.
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 2 inclusion and 8 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: looking for participants now, as of the sponsor's last update on 14 Oct 2025. 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 United States. 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?
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?
Contact Karl Rusch, B.S., DSc, DPT ((845) 848-6046, karl.rusch@duny.edu), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Hip External Rotation Strength (time frame: "From pre-intervention to post-intervention within a single session lasting approximately 20 minutes."). The study lists 4 primary outcomes in all. 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 NCT07025434, which also lists 3 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 14 Oct 2025.