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

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

Status

Recruiting

Phases

Unknown

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT07383740

Enrollment

Registered

2026-02-03

Start date

2026-04-21

Completion date

2027-10-01

Last updated

2026-08-20

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

Conditions

Osteo Arthritis Knee and Hip

Keywords

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

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.

Interventions

PROCEDURESubmaximal cycle ergometer test-retest

Performing a submaximal cycle ergometer test twice

Study design

Allocation

Intervention model

SINGLE_GROUP

Primary purpose

OTHER

Masking

NONE

Intervention model description

Test-retest reliability of a submaximal cycle ergometer test.

Eligibility

Sex/Gender

ALL

Age

30 Years to No maximum

Healthy volunteers

Inclusion criteria

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

Exclusion criteria

* 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.

Design outcomes

Primary

Measure	Time frame	Description
Estimated VO2-max value.	Time between first and second submaximal cycle ergometer test should be one week.	An estimated VO2-max value is obtained by performing the Ekblom Bak submaximal cycle ergometer test.

Countries

Sweden

Contacts

CONTACTDaniel Karsberg Zotterman, MSc

daniel.karsberg.zotterman@vgregion.se+46739298119

CONTACTStefan Lundqvist, PhD

stefan.lundqvist@vgregion.se+46762276179

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Aug 21, 2026