NCT06924164

Progressive Resistance Training for Adults With External Snapping 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

• Status: Recruiting
• Phase: N/A
• Study type: Interventional
• Enrollment: 100 (estimated)
• Sponsor: Aarhus University Hospital · Academic / Other
• Sex: All
• Age: 18 Years – 40 Years
• Healthy volunteers: Not accepted

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.

Detailed description

This trial is an international multicentre randomised controlled assessor-blinded crossover trial, following the CONSORT guidelines. The intervention is a 12-week progressive resistance training programme, and the trial is designed with three follow-up time points. After the baseline test, the patients will be randomised in a 1:1 ratio to either the intervention or the control group using the Research Electronic Data Capture (REDCap) source hosted at Aarhus University. For both groups, the first test will be the baseline test, conducted before the randomisation. The second test will be conducted 6 weeks after randomisation, the third test will be conducted 12 weeks after randomisation and the fourth and last test will be conducted 24 weeks after randomisation. The primary outcome will be the change from baseline to the third follow-up, and the trial will be powered based on this period. The lasting effect of the intervention will be evaluated from baseline to the fourth follow-up test for the intervention group.

Conditions

• External Snapping Hip
• Coxa Saltans External

Interventions

Type	Name	Description
OTHER	Progressive resistance training	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.
BEHAVIORAL	Waiting time	12 weeks of waiting time
BEHAVIORAL	Self guided exercise	12 weeks of self guided exercise

Timeline

• Start date: 2025-07-01
• Primary completion: 2027-04-01
• Completion: 2027-04-01
• First posted: 2025-04-11
• Last updated: 2025-07-10

Locations

13 sites across 1 country: Denmark