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Randomized controlled study in a wait-list control design to evaluate a 12-week app- and orthesis-supported training intervention in patients with moderate to severe knee osteoarthritis

Randomized controlled study in a wait-list control design to evaluate a 12-week app- and orthesis-supported training intervention in patients with moderate to severe knee osteoarthritis - AppExOA

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
DRKS
Registry ID
DRKS00023269
Enrollment
60
Registered
2020-10-09
Start date
2020-10-12
Completion date
Unknown
Last updated
2025-04-07

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

Conditions

M17

Interventions

Group 1: App-guided exercise intervention (12 weeks) Group 2: App-guided exercise intervention by use of an knee orthosis (12 weeks) Group 3: Control without study intervention (12 weeks) then rando

Sponsors

Universitätsklinikum Tübingen Abt. Sportmedizin
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to No maximum

Inclusion criteria

Inclusion criteria: Osteoathritis symptoms are primary located at the knee joint; unicondylar knee osteoarthritis; moderate to severe knee osteoarthrititis (KOOS <=60 where 100 indicates no complaints at all); good German language skills (Information sheet, questionnaires); Willingness to wear the orthosis while exercising, Willingness to use the app to exercise, access to a device with iOS operating system.

Exclusion criteria

Exclusion criteria: Scheduled elective knee joint replacement; already implanted artificial joint; osteoarthritis primarily in the hip joint or others than the knee; diffuse pain; solely retropatellar knee osteoarthritis; Complaints that affect physical performance in everyday life, measured by use of the PAR-Q, verified by the physician, if applicable; Complaints located at the back or lower extremities that are currently treated by a medical doctor or health professional; previous surgeries, injuries or complaints that may impair measures of strength and balance or the exercise intervention itself.

Design outcomes

Primary

MeasureTime frame
The primary endpoint is the joint comparison of the two App study arms with regard to osteoarthritis-specific symptoms (Knee Osteoarthritis Outcome Score) in contrast to the waiting list control group immediately before and after the 12-week intervention phase.

Secondary

MeasureTime frame
Other study endpoints include self-reporting on health-related quality of life (VR12), fear of movement (Brief Tampa Skale of Kinesiophobia) and sports and physical activity (EHIS-PA). Objective measures include maximum force measurement for knee flexors/extensors, testing of leg strength and strength endurance (30-second chair test), and balance tests (course of the centre of pressure (COP) during bipedal, one-legged and tandem stands). During the intervention, the sensation of exertion during training, the quality and quantity of exercise performance, training adherence, and the recording of safety aspects during the intervention (pain, unexpected events or side effects) are also recorded. The evaluation also takes into account a differentiation into app versus app and orthosis as well as the analysis of follow-up time points 24 weeks after baseline.

Countries

Germany

Contacts

Public ContactValerie Dieter

Universitätsklinikum TübingenAbt. Sportmedizin

valerie.dieter@med.uni-tuebingen.de0049-7071-2986477

Outcome results

None listed

Source: DRKS (via WHO ICTRP) · Data processed: Feb 6, 2026