Effects of Hip Bump Manipulation Versus Sham Treatment in Healthy Adults

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 Years - 45 Years

Healthy Volunteers

Accepted

Interventions

• Hip Bump Manipulation — PROCEDURE
  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
  Iliac Crest Sham Manipulation

Study Details

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.

Key Dates

Start date

Jun 20, 2025

Status verified

Oct 2025

Primary completion

Mar 31, 2026

Completion

May 31, 2026

Study Design

Enrollment

60 participants (estimated)

Allocation

RANDOMIZED

Intervention model

PARALLEL

Primary purpose

BASIC_SCIENCE

Arms

• Experimental: Group A: Intervention
  Hip Bump Manipulation (UFIR)
• Sham Comparator: Group B: Control
  Iliac Crest Bump 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." ]

Central Contacts

• Karl Rusch, B.S., DSc, DPT
  (845) 848-6046
  [email protected]
• Stephen Rodriguez, B.S., DSc, MPS PT, DPT
  (845) 848-6047
  [email protected]

Locations (1)

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