Recruiting

Hip Bump Manipulation

Sponsor:

Dominican University New York

Code:

NCT07025434

Conditions

Assessment of Hip Strength, Range of Motion, EMG Activation, and Landing Mechanics in Healthy Subjects

Healthy Adult Subjects

Eligibility Criteria

Sex: All

Age: 18 - 45

Healthy Volunteers: Accepted

Interventions

Hip Bump Manipulation

Sham (No Treatment)

Study Details

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.

Conditions

Assessment of Hip Strength, Range of Motion, EMG Activation, and Landing Mechanics in Healthy Subjects

Healthy Adult Subjects

Study ID

NCT07025434

Start date

Jun 20, 2025

Status verified date

Oct, 2025

Completion date

May, 2026

Anticipated

Primary completion date

Mar, 2026

Anticipated

Eligibility Criteria

Eligibility Criteria

Sex: All

Age: 18 - 45

Healthy Volunteers: Accepted

Inclusion Criteria:

  • Healthy individuals
  • Aged 18-45 years old

Exclusion Criteria:

  • 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

Study Design

Enrollment

60 participants

Anticipated

Allocation

Randomized

Intervention Model

Parallel Assignment

Primary purpose

Basic Science

Interventions and Outcome Measures

Arms

experimental: Group A: Intervention

Hip Bump Manipulation (UFIR)

sham comparator: Group B: Control

Iliac Crest Bump Sham Manipulation

Interventions

Hip Bump Manipulation

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)

Iliac Crest Sham Manipulation

Primary outcome measure

  • Hip External Rotation Strength [ Time Frame: "From pre-intervention to post-intervention within a single session lasting approximately 20 minutes." ]
  • Hip Internal Rotation Range of Motion [ Time Frame: "From pre-intervention to post-intervention within a single session lasting approximately 20 minutes." ]
  • Hip EMG Muscle Activation [ Time Frame: "From pre-intervention to post-intervention within a single session lasting approximately 20 minutes." ]
  • Bipodal Landing [ Time Frame: "From pre-intervention to post-intervention within a single session lasting approximately 20 minutes." ]

Central Contacts and Locations

Central contacts

Karl Rusch, B.S., DSc, DPT

(845) 848-6046karl.rusch@duny.edu

Stephen Rodriguez, B.S., DSc, MPS PT, DPT

(845) 848-6047stephen.rodriguez@duny.edu

Locations

Dominican University New York

Recruiting

Orangeburg, New York, United States, 10962

Contacts

Ayse Edeer, B.S, M.S, Ph.D.

(845) 848-7615ayse.edeer@duny.edu

Karl Rusch, B.S., DSc, DPT

(845) 848-6046karl.rusch@duny.edu

Principal Investigator:

Joseph Almonte

More Information

Sponsor

Dominican University New York

Last update posted

Oct 14, 2025

Last verified

Oct, 2025

Keywords

  • Hip Bump Manipulation
  • Unrestrained Femoral Internal Rotation
  • UFIR
  • HVLAT

Trial information was received from ClinicalTrials.gov and was last updated on 2026-09-09. This information was provided to ClinicalTrials.gov by Dominican University New York on 2025-10-14.