Clinical trial NCT07025434: Effects of Hip Bump Manipulation Versus Sham Treatment in Healthy Adults
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
Study type: INTERVENTIONAL
Overall status: RECRUITING
Phase: NA
Conditions: Hip Function
Hip External Rotator Strength
Hip Internal Rotation Range of Motion
Bipodal Landing
EMG Activation
Keywords: Hip Bump Manipulation
Unrestrained Femoral Internal Rotation
UFIR
HVLAT
Lead sponsor: Dominican University New York
Sponsor class: OTHER
First posted: 2025-06-17
Enrollment: 60
Sex: ALL
Minimum age (years): 18
Maximum age (years): 45
Standard ages: ADULT
Accepts healthy volunteers: yes
Allocation: RANDOMIZED
Intervention model: PARALLEL
Intervention model description: Two-Arm Parallel Group Randomized Controlled Trial (RCT) Group A: Intervention Group B: Control (Sham)
Primary purpose: BASIC_SCIENCE

Brief 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 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.


Eligibility criteria: Inclusion Criteria:

* Healthy individuals aged 18-45 years old

Exclusion Criteria:

* Diagnosed Demoroacetabular Labral tear, Osteoarthritis (OA), Low Back Pain, Hip/pelvic pain, a lower extremity injury within the past six months, scoliosis, a surgical history relating to the FAJ, or a known allergic reaction to adhesive or shaving cream used for EMG placement.

Primary outcomes:
measure: Hip External Rotation Strength
timeFrame: "From pre-intervention to post-intervention within a single session lasting approximately 20 minutes."
measure: Hip Internal Rotation Range of Motion
timeFrame: "From pre-intervention to post-intervention within a single session lasting approximately 20 minutes."
measure: Hip EMG Muscle Activation
timeFrame: "From pre-intervention to post-intervention within a single session lasting approximately 20 minutes."
measure: Bipodal Landing
timeFrame: "From pre-intervention to post-intervention within a single session lasting approximately 20 minutes."
Secondary outcomes:
measure: Hip Deviation with Active Assisted Hip Flexion Range of Motion
timeFrame: "From pre-intervention to post-intervention within a single session lasting approximately 20 minutes."
measure: Hip External Rotation Range of Motion
timeFrame: "From pre-intervention to post-intervention within a single session lasting approximately 20 minutes."
Other outcomes:
Locations:
city: Orangeburg
country: United States
facility: Dominican University New York
state: New York
Study officials:
affiliation: Dominican University New York
name: Ayse Edeer, B.S., M.S., Ph.D.
role: STUDY_CHAIR
References:
citation: 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.
citation: Kazemi 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.
citation: Bazett-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.