Progressive Resistance Training for Adults With External Snapping Hip
Snappy Hip
Snappy Hip Trial: A Randomized Crossover Trial Comparing the Clinical and Cost-effectiveness of Progressive Resistance Training Compared to Usual Care on Pain for Adults With External Snapping Hip
2 other identifiers
interventional
100
1 country
13
Brief Summary
External snapping hip is characterised by an audible and painful snap during hip movement among physical active people around 15-40 years old. Progressive resistance training has been suggested as a new potential treatment path in treating patients with external snapping hip. The investigators conducted a feasibility study and found that patients reported less pain and improved their physical function, quality of life and muscle strength after 12 weeks of progressive resistance training. The overall aim of the project is to compare hip pain in patients with external snapping hip treated with progressive resistance training to a wait-and-see approach, in a randomised controlled trial. This study has the potential to establish a new and specific treatment option for patients with external snapping hip, to be used nationally and internationally.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for not_applicable
Started Jul 2025
13 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
March 28, 2025
CompletedFirst Posted
Study publicly available on registry
April 11, 2025
CompletedStudy Start
First participant enrolled
July 1, 2025
CompletedPrimary Completion
Last participant's last visit for primary outcome
April 1, 2027
ExpectedStudy Completion
Last participant's last visit for all outcomes
April 1, 2027
July 10, 2025
July 1, 2025
1.8 years
March 28, 2025
July 4, 2025
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
HAGOS Pain
The HAGOS is a patient-reported questionnaire consisting of six different subscales. The pain subscale consists of 10 questions, which are all answered using standardised answer options following a 0-4-point Likert Scale. The scores are transformed into a subscale score ranging from 0 (worst) to 100 (best). A minimal clinically relevant difference of the HAGOS pain subscale has been reported to be 9.7 points among a group of patients undergoing hip arthroscopy for femoroacetabular impingement.
Baseline, week 6, week 12 and week 24
Secondary Outcomes (7)
HAGOS
Baseline, week 6, week 12 and week 24
UCLA-AS
Baseline, week 12 and week 24
GPE
Baseline, week 12 and week 24
Single leg hop test
Baseline, week 12 and week 24
30 second unilateral sit-to-stand test
Baseline, week 12 and week 24
- +2 more secondary outcomes
Other Outcomes (4)
EQ-5D-5L
Baseline, week 12 and week 24
iPCQ
Baseline, week 12 and week 24
HUQ
Baseline, week 12 and week 24
- +1 more other outcomes
Study Arms (2)
Control group: Wait and see approach
OTHERThe control group are randomized to 12 weeks of waiting time followed by 12 weeks of progressive resistance training.
Intervention group: progressive resistance training
EXPERIMENTALThe intervention group are randomized to 12 weeks of progressive resistance training followed by 12 weeks of self guided exercise
Interventions
The progressive resistance program consist of a five-minute aerobic warm-up on either an ergometer bike, treadmill or rowing machine followed by six resistance training exercises: landmine twist, walking lunges, leg press, hip abduction, hip adduction and hip flexion. All training sessions (three per week) will be supervised for the first two weeks. After that, there will be one weekly supervised training session and two self-directed sessions. The subjects will be scheduled for 36 training sessions over 12 weeks, of which 16 will be supervised. Each training session is designed based on the findings from the feasibility study and is expected to last approximately one hour. If a subject cannot perform all scheduled sessions in a week, additional sessions will be planned for the following week to obtain the 16 supervised sessions.
12 weeks of waiting time
12 weeks of self guided exercise
Eligibility Criteria
You may qualify if:
- Age 18-40 years (10)
- Experienced lateral hip joint "snapping" with pain discomfort within the last 14 days
- Able to demonstrate the audible and/or visible lateral "snapping" during lateral hip joint movementor popping sound when the hip joint moves
- Capable of commuting to the training facility
- Proficient in reading and understanding Danish or English
You may not qualify if:
- Previous surgery on the affected hip
- Planned surgery on lower extremities within the trial period
- Anterior or medial hip discomfort that substantially exceeds the lateral hip discomfort
- Any contraindication to exercise
- Neurological, rheumatoid, or mental conditions affecting the hip function
- Ongoing active cancer treatment
- Planned vacation for more than 14 days within the intervention period
- Pregnancy
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Aarhus University Hospitallead
- University of Aarhuscollaborator
Study Sites (13)
Aalborg Universitetshospital
Aalborg, 9000, Denmark
Aarhus University Hospital
Aarhus N, 8200, Denmark
Rigshospitalet
Copenhagen, 2100, Denmark
Bispebjerg og Frederiksberg Hospital
Copenhagen, 2400, Denmark
Regionshospitalet Gødstrup
Herning, 7400, Denmark
Nordsjællands Hospital - Hillerød
Hillerød, 3400, Denmark
Regionshospitalet Horsens
Horsens, 8700, Denmark
Hvidovre Hospital
Hvidovre, 2650, Denmark
Sjællands Universitetshospital - Køge
Køge, 4600, Denmark
Næstved, Slagelse og Ringsted Hospital
Næstved, 4700, Denmark
Odense Universitetshospital
Odense, 5000, Denmark
Regionshospitalet Randers
Randers, 8930, Denmark
Sygehus Lillebælt - Vejle
Vejle, 7100, Denmark
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- STUDY DIRECTOR
Stig S Jakobsen, PhD
Department of Orthopedic Surgery, Aarhus University Hospital, DK
- PRINCIPAL INVESTIGATOR
Lisa U Tønning, MHSc
Department of Orthopedic Surgery, Aarhus University Hospital, DK
- STUDY DIRECTOR
Inger Mechlenburg, DMSc
Department of Clinical Medicine, Aarhus University, DK
- STUDY DIRECTOR
Ulrik Dalgas, PhD
Department of Public Health, Sports, Aarhus University, DK
- STUDY DIRECTOR
Troels Kjeldsen, PhD
Department of Orthopedic Surgery, Aarhus University Hospital, DK
- STUDY DIRECTOR
Cara Lewis, PhD
Department of Physical Therapy, Boston University, Boston, US
- STUDY DIRECTOR
Martin Lamm, MSc
Department of Orthopedic Surgery, Aarhus University Hospital, DK
- STUDY DIRECTOR
Joanne L Kemp, PhD
La Trobe Sport and Exercise Medicine Research Centre, La Trobe University, Melbourne, Australia
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- SINGLE
- Who Masked
- OUTCOMES ASSESSOR
- Purpose
- TREATMENT
- Intervention Model
- CROSSOVER
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
March 28, 2025
First Posted
April 11, 2025
Study Start
July 1, 2025
Primary Completion (Estimated)
April 1, 2027
Study Completion (Estimated)
April 1, 2027
Last Updated
July 10, 2025
Record last verified: 2025-07
Data Sharing
- IPD Sharing
- Will share
- Shared Documents
- STUDY PROTOCOL, SAP, ICF, ANALYTIC CODE
- Time Frame
- Data will be available after publication of the trial upon reasonably request.
- Access Criteria
- Applications for data access will be reviewed by the author group. The applicant will be required to sign a data access agreement.
Anonymized patient-level data will be made available if required by the scientific journal, in which the results of the trial are published. Additionally, researchers presenting a justified cause for receiving the data can obtain it after a data access agreement has been signed.