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Exercise in Patients With Hypermobile Joints and Knee Pain

High-load Resistance Training Compared With Usual Care for Treatment of Painful Knee Joint Hypermobility in Young Adults: A Randomised Controlled Trial (the HIPEr-Knee Study)

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06277401
Acronym
HIPEr-Knee
Enrollment
80
Registered
2024-02-26
Start date
2024-02-21
Completion date
2027-05-01
Last updated
2026-09-10

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Hypermobility, Joint, Hypermobility Syndrome, Knee Discomfort

Keywords

Hypermobility, Knee pain, Treatment, Randomised controlled trial

Brief summary

Pain associated with knee joint hypermobility is common in the adult population, but evidence on treatment is sparse. This study investigates if high-load resistance training is superior to usual care in improving activity-related pain in young patients (18-45 years) with hypermobile joints and knee pain.

Detailed description

Knee joint hypermobility is common in the adult population. Patients with knee joint hypermobility and knee pain are typically managed with low intensity resistance training and proprioceptive training to reduce knee pain and improve function, but many patients do not respond well to these treatment strategies. High-load resistance training offers additional benefits to low intensity resistance training, including marked increase in muscle cross-sectional area, neural drive, and increased tendon stiffness, all important components of acquiring active knee joint stability during movement tasks and daily life. Therefore, the primary aim of this randomised controlled trial (RCT) is to investigate if high-load resistance training is superior to usual care in reducing activity-related pain in young patients (18-45 years) with hypermobile joints and knee pain.

Interventions

OTHERNeuromuscular training for the knee

The exercise programme includes exercises identified in literature to target muscles around the knee.

OTHERHigh-load strength training for the knee

The exercise programme includes exercises identified in literature to target muscles around the knee.

Sponsors

University of Southern Denmark
Lead SponsorOTHER
Independent Research Fund Denmark
CollaboratorINDUSTRY
Odense Patient Data Explorative Network
CollaboratorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Investigator)

Masking description

The patients will be kept blind to treatment allocation by being provided with minimal information about the content of the two exercise interventions and the study hypotheses; the patients will be informed that the study compares two different exercise protocols that both include safe exercises to reduce knee pain and increase knee function. An independent biostatistician blinded to group allocation will perform the primary RCT analysis. To reduce the risk of interpretation bias, blinded results from the analyses (group A compared with group B) will be presented to all authors, who will agree on two alternative written interpretations before the data manager unblinds the randomisation code.

Eligibility

Sex/Gender
ALL
Age
18 Years to 45 Years
Healthy volunteers
No

Inclusion criteria

* Persistent knee pain for ≥ 3 months (self-reported) * Knee pain ≥ 30mm during the last week using a 0-100 mm visual analogue scale (VAS; 0=no pain and 100=worst imaginable pain) (self-reported) * Generalised joint hypermobility assessed with the Five-Part Hypermobility Questionnaire (positive ≥ 2/5) (self-reported) * Local knee joint hypermobility using the passive hyperextension of the knee in standing (positive \> 10 degrees of hyperextension) and confirmed in supine lying (heel resting on 20 cm high block on the bench surface), with passive knee hyperextension (positive \> 10 degrees) (objectively measured)

Exclusion criteria

* Diagnosed with patellar tendinopathy * Pregnancy or childbirth within the past year (due to increased levels of relaxin that could affect joint stability) * Knee surgery within the past year * Participation in regular structured resistance training within the past six months * Inability to speak and understand Danish. * All types of Ehlers-Danlos syndrome * Other heritable connective tissue disorders such as Marfan syndrome, osteogenesis imperfecta, Loeys-Dietz syndrome, Stickler syndrome, skeletal dysplasias * Autoimmune rheumatic connective tissue disorders such as lupus, rheumatoid arthritis; Chromosomal conditions such as Fragile X syndrome, Kabuki syndrome, Down syndrome * Neuromuscular disorders that can cause joints to become unstable, such as multiple sclerosis

Design outcomes

Primary

MeasureTime frameDescription
Visual Analogue Scale Nominated ActivityBaseline, 6 weeks, 12 weeks (primary endpoint), 12 monthsThe primary outcome is the Self-reported knee pain during an activity nominated by patients to be the most aggravating for their present knee pain (VAS nominated activity - VASNA, 0-100, 100 = worse). The primary endpoint is at 12-week follow-up.

Secondary

MeasureTime frameDescription
Knee injury and Osteoarthritis Outcome Score (KOOS)Baseline, 12 weeks, 12 monthsKnee injury and Osteoarthritis Outcome Score is a validated knee-specific questionnaire used to assess patient-reported outcomes in the continuum from knee injury to osteoarthritis and is widely used for different types of knee pathology. (0-100, 100 = best)
Adverse eventsUp to 12 monthsAdverse events will be defined as any unintended, negative findings, symptom, or illnesses that occur during the study assessments or interventions, whether attributable to the project or not.
Dynamic knee strengthBaseline, 12 weeksDynamic leg strength will be established by a 5-repetition maximum leg press (single leg) by a standardised protocol.
Knee reposition senseBaseline, 12 weeksSitting active knee joint reposition (proprioception) test will be performed using a HALO Digital Goniometer, to assess mean absolute angle error (AAE)
Single-Leg-Hop for DistanceBaseline, 12 weeksThe patients will be instructed to hop forward as far as possible and land steadily and stand still for at least three seconds.

Countries

Denmark

Contacts

PRINCIPAL_INVESTIGATORBehnam Liaghat, PhD

University of Southern Denmark

STUDY_DIRECTORJonas B Thorlund, PhD

University of Southern Denmark

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Sep 11, 2026