Test-Retest Reliability of a Submaximal Exercise Test in Patients With Hip and Knee Osteoarthritis

NCT07383740 | Not Yet Recruiting

• 1 other identifier: Test-retest_adapted_EB
• Study Type: interventional
• Target: 40
• Locations: 0 countries
• Sites: N/A

Brief Summary

The aim is to evaluate the test-retest reliability of the primary care-adapted Ekblom-Bak submaximal ergometer bicycle test in patients with hip- and/or knee osteoarthritis (OA). Forty patients with hip- and/or knee OA eligible for the Swedish national OA treatment program in primary care are to be recruited. After screening for contraindications, participants will perform the aEB-test twice within 1-2 weeks. The investigators hypothezise that the test will demonstrate acceptable test-retest reliability in patients with hip- and/or knee OA. To establish reliability is essential for future studies using this test in this population and may support its integration into routine clinical assessment.

Conditions

Osteo Arthritis Knee and Hip

Keywords

Osteoarthritis; knee osteoarthritis; hip osteoarthritis; exercise test; reliability; cardiorespiratory fitness; test-retest

Outcome Measures

Primary Outcomes (1)

• Estimated VO2-max value.

  An estimated VO2-max value is obtained by performing the Ekblom Bak submaximal cycle ergometer test.

  Time between first and second submaximal cycle ergometer test should be one week.

Study Arms (1)

Forty patients with osteoarthritis in hip or knee

EXPERIMENTAL

Forty patients with hip or knee osteoarthritis on the waiting list for usual rehabilitation care will be recruited. The patientes will be screened for contraindications, and, if eligible, will complete a submaximal cycle ergometer test twice within one week.

Procedure: Submaximal cycle ergometer test-retest

Interventions

Submaximal cycle ergometer test-retest PROCEDURE

Performing a submaximal cycle ergometer test twice

Forty patients with osteoarthritis in hip or knee

Eligibility Criteria

• Age: 30 Years+
• Gender Eligibility Details: Male or female
• Healthy Volunteers: No
• Age Groups: Adult (18-64), Older Adult (65+)

You may qualify if:

• Currently listed on the waiting list for an osteoarthritis rehabilitation program due to clinically diagnosed hip and/or knee osteoarthritis.

You may not qualify if:

• Another primary cause of symptoms or disability, such as inflammatory joint disease or fracture.
• Another condition currently causing more symptoms than osteoarthritis, for example fibromyalgia.
• Insufficient understanding of written and spoken Swedish.
• Medication that affects heart rate.
• Contraindications for a submaximal ergometer bicycle test according to the screening protocol, such as heart disease.

Sponsors & Collaborators

• Vastra Gotaland Region: lead

Related Links

• Related Info

MeSH Terms

Conditions

Osteoarthritis; Osteoarthritis, Knee; Osteoarthritis, Hip

Condition Hierarchy (Ancestors)

Arthritis; Joint Diseases; Musculoskeletal Diseases; Rheumatic Diseases

Central Study Contacts

Daniel Karsberg Zotterman, MSc

CONTACT

+46739298119; daniel.karsberg.zotterman@vgregion.se

Stefan Lundqvist, PhD

CONTACT

+46762276179; stefan.lundqvist@vgregion.se

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: NA
• Masking: NONE
• Purpose: OTHER
• Intervention Model: SINGLE GROUP
• Sponsor Type: OTHER GOV
• Responsible Party: SPONSOR

Model Details: Test-retest reliability of a submaximal cycle ergometer test.

Study Record Dates

• First Submitted: January 19, 2026
• First Posted: February 3, 2026
• Study Start: March 1, 2026
• Primary Completion (Estimated): September 1, 2027
• Study Completion (Estimated): October 1, 2027
• Last Updated: February 6, 2026

Record last verified: 2026-01

Data Sharing

• IPD Sharing: Will not share