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RecruitingNCT05687955Updated May 12, 2023

Exercise Rehabilitation for Hip-related Pain and Dysfunction in Student Circus Arts Performers

An interventional study of Hip Exercise Program in Hip Dysplasia and Femoro Acetabular Impingement, sponsored by Swinburne University of Technology. Recruiting at 1 site in Australia. Open to participants aged 18 Years to 35 Years. Per ClinicalTrials.gov, last updated 2023-05-12.

Sponsored by Swinburne University of Technology · Not applicable, Interventional, and Treatment

From the registry’s dates

  • Primary completion was expected by Mar 2024, 2 years 7 months ago, but the record still lists the study as recruiting.
  • Started Mar 2023; still recruiting 3 years 7 months later.
Phase
Not applicable
Study type
Interventional
Enrollment
20
Allocation
Not applicable
Ages
18 Years to 35 Years
Sex
All
01

Study summary

Hip injuries are reported to account for 71% and 29% of all injuries reported in female and male performers, respectively, at the National Institute of Circus Arts. There are no reports on hip pathology in circus performers, nor are there any reported exercise interventions for hip pain in circus performers.

This study aims to:

To assess the effect of an exercise rehabilitation program on patient-reported outcome measures, hip strength and range of movement, and functional assessments in circus arts students with clinically and radiologically diagnosed hip pain-related disorders.

Participants will undertake a 12-week strength exercise protocol that has been specifically designed to focus on hip rehabilitation appropriate for circus performance. Expected outcome: Improvements in patient reported outcome measure (PROM) scores and an increase in function, strength and hip range of movement in people with hip pain

02

Conditions studied

  • Hip Dysplasia
  • Femoro Acetabular Impingement
03

In context

Hip Dislocation

107 studies on the registry are indexed under Hip Dislocation; 36 are open to participants now.

This study's planned enrollment of 20 is below the median of 86 across 64 interventional studies indexed under Hip Dislocation.

Browse Hip Dislocation studies →

Lead sponsor

Swinburne University of Technology is the lead sponsor of 10 studies on the registry; 2 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 35 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • 3-month history hip/groin pain +/- symptoms including clicking, giving way, locking, or catching, one or more of a positive
  • positive FADIR pain provocation test
  • positive HEER test (hip extension and external rotation)
  • positive prone instability test
  • imaging to support a pathological hip (e.g., CAM morphology, hip dysplasia)

Exclusion criteria

Exclusion Criteria:

  • OA degree >1 on classification of Tönnis
  • Centre Edge-angle \<10 degrees
  • Legg-Calvé-Perthes or epiphysiolysis
  • history of hip joint surgery or significant hip trauma (fracture +/- dislocation)
  • neurologic motor deficit (lower limb power, strength or reflex deficit)
  • hip pain from a lumbar origin (positive passive straight leg raise, combined lumbar extension and rotation)
  • connective tissue disorder (e.g., Ehlers-danlos or Marfan syndrome)
  • pregnancy or breastfeeding.
05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
20 participants (estimated)

Study arms

  • Experimental
    Hip Exercise Program

    A 12-week strength exercise protocol has been specifically designed to focus on hip rehabilitation appropriate for circus performance.

    Other: Hip Exercise Program

Interventions

  • OtherHip Exercise Program

    The exercise intervention is being implemented 3 times per week. Two sessions can be completed at home by the participant, and one session per week will be attended by a physiotherapist that will monitor exercise technique and progress the exercise program for each participant. The exercise protocol has been specifically designed to focus on hip rehabilitation appropriate for circus performance. The exercise program will involve hip strength exercises in the sagittal, coronal and transverse planes using weights and elastic bands (Theraband). It will also include trunk strength and postural correction exercises to address swayback posture which is a common clinical presentation in those with hip dysplasia.

06

What researchers measure

Primary outcomes

  1. The Copenhagen Hip and Groin Outcome Score (HAGOS)

    Patient Reported Outcome Measure, score on 0-100 scale, with zero representing extreme hip and/or groin problems and 100 representing no hip and/or groin problems.

    Time frame: Baseline

  2. The Copenhagen Hip and Groin Outcome Score (HAGOS)

    Patient Reported Outcome Measure, score on 0-100 scale, with zero representing extreme hip and/or groin problems and 100 representing no hip and/or groin problems.

    Time frame: 3-months

  3. The Copenhagen Hip and Groin Outcome Score (HAGOS)

    Patient Reported Outcome Measure, score on 0-100 scale, with zero representing extreme hip and/or groin problems and 100 representing no hip and/or groin problems.

    Time frame: 6-months

  4. The Copenhagen Hip and Groin Outcome Score (HAGOS)

    Patient Reported Outcome Measure, score on 0-100 scale, with zero representing extreme hip and/or groin problems and 100 representing no hip and/or groin problems.

    Time frame: 9-months

  5. International Hip Outcome Tool (iHOT-12)

    Patient Reported Outcome Measure, scored using a visual analog scale from 0 to 100, with a score of 100 being the best function and least amount of symptoms

    Time frame: Baseline

  6. International Hip Outcome Tool (iHOT-12)

    Patient Reported Outcome Measure scored using a visual analog scale from 0 to 100, with a score of 100 being the best function and least amount of symptoms

    Time frame: 3-months

  7. International Hip Outcome Tool (iHOT-12)

    Patient Reported Outcome Measure scored using a visual analog scale from 0 to 100, with a score of 100 being the best function and least amount of symptoms

    Time frame: 6-months

  8. International Hip Outcome Tool (iHOT-12)

    Patient Reported Outcome Measure scored using a visual analog scale from 0 to 100, with a score of 100 being the best function and least amount of symptoms

    Time frame: 9-months

  9. European Quality of life questionnaire (EQ-5D-5L)

    Patient Reported Outcome Measure

    Time frame: Baseline

  10. European Quality of life questionnaire (EQ-5D-5L)

    Patient Reported Outcome Measure

    Time frame: 3-months

  11. European Quality of life questionnaire (EQ-5D-5L)

    Patient Reported Outcome Measure

    Time frame: 6-months

  12. European Quality of life questionnaire (EQ-5D-5L)

    Patient Reported Outcome Measure

    Time frame: 9-months

  13. Tampa Scale of Kinesiophobia (TSK)

    Patient Reported Outcome Measure

    Time frame: Baseline

  14. Tampa Scale of Kinesiophobia (TSK)

    Patient Reported Outcome Measure

    Time frame: 3-months

  15. Tampa Scale of Kinesiophobia (TSK)

    Patient Reported Outcome Measure

    Time frame: 6-months

  16. Tampa Scale of Kinesiophobia (TSK)

    Patient Reported Outcome Measure

    Time frame: 9-months

  17. Hip Strength assessment

    Strength of hip abduction, adduction, sitting hip flexion at 90deg, prone extension with knee extended, prone external and internal rotation will be measured using a hand-held dynamometer.

    Time frame: Baseline

  18. Hip Strength assessment

    Strength of hip abduction, adduction, sitting hip flexion at 90deg, prone extension with knee extended, prone external and internal rotation will be measured using a hand-held dynamometer.

    Time frame: 9-months

  19. Hip Range of Motion

    Hip flexion, Hip internal rotation and external rotation will be measured using an inclinometer

    Time frame: Baseline

  20. Hip Range of Motion

    Hip flexion, Hip internal rotation and external rotation will be measured using an inclinometer

    Time frame: 9-months

Secondary outcomes

  1. Functional movement screen Y-balance test

    This will measure a circus performers capacity to stand on one leg and reach their opposite leg as far as possible forwards, backwards and sideways. This provides a measure of both strength and flexibility, has been used in prior hip research, and shown to have excellent intra and inter-rater reliability.

    Time frame: Baseline

  2. Functional movement screen Y-balance test

    This will measure a circus performers capacity to stand on one leg and reach their opposite leg as far as possible forwards, backwards and sideways. This provides a measure of both strength and flexibility, has been used in prior hip research, and shown to have excellent intra and inter-rater reliability.

    Time frame: 9-months

  3. Single leg Hop for distance

    The distance of a participant hop will be measured, taking off and landing on the same foot, maintaining their balance for about 2-3 seconds on landing. The best of three hops will be recorded.

    Time frame: Baseline

  4. Single leg Hop for distance

    The distance of a participant hop will be measured, taking off and landing on the same foot, maintaining their balance for about 2-3 seconds on landing. The best of three hops will be recorded.

    Time frame: 9-months

  5. Trunk Muscle Endurance Test

    The duration of a side-plank will be recorded in seconds/minutes. The test will be ceased after 3 minutes.

    Time frame: Baseline

  6. Trunk Muscle Endurance Test

    The duration of a side-plank will be recorded in seconds/minutes. The test will be ceased after 3 minutes.

    Time frame: 9-months

  7. One leg rise test

    The number of sit to stand movements on a single leg performed from a starting position where the knee is at 90deg will be recorded. The test will be ceased if the participant reaches 50 one leg rises.

    Time frame: Baseline

  8. One leg rise test

    The number of sit to stand movements on a single leg performed from a starting position where the knee is at 90deg will be recorded. The test will be ceased if the participant reaches 50 one leg rises.

    Time frame: 9-months

07

Study locations

1 of 1 sites recruiting
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on May 12, 2023, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT05687955
Lead sponsor
Swinburne University of Technology
Collaborators
National Institute of Circus Arts
Responsible party
Sponsor
First posted
Jan 18, 2023
Start date
Mar 28, 2023
Primary completion
Mar 30, 2024 (estimated)
Completion
Mar 30, 2024 (estimated)
Last update
May 12, 2023

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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