NCT06161194

Brief Summary

This pilot cluster-randomized, two-arm parallel-group controlled trial, aims at enhancing the understanding of the effects of real-time feedback on functional deficits as knee valgus thrust, pelvic drop, and lateral trunk lean after total hip arthroplasty. Biomechanical and patient-reported outcomes will be assessed after a total hip arthroplasty as well as at three and six months follow-ups. The primary research question is, whether digital real-time feedback supported home-exercising improves the control of the frontal knee range of motion, pelvic obliquity, and lateral trunk lean, superior to exercising supported by written instructions as comparator. The secondary aspect focuses on potential differences between groups concerning aspects of quality of life, function, and physical activity. Tertiary functional outcomes between groups will be compared for reasons of quantification movement quality.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
38

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Jan 2024

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

November 30, 2023

Completed
7 days until next milestone

First Posted

Study publicly available on registry

December 7, 2023

Completed
1 month until next milestone

Study Start

First participant enrolled

January 10, 2024

Completed
1.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

April 15, 2025

Completed
20 days until next milestone

Study Completion

Last participant's last visit for all outcomes

May 5, 2025

Completed
Last Updated

August 8, 2025

Status Verified

August 1, 2025

Enrollment Period

1.3 years

First QC Date

November 30, 2023

Last Update Submit

August 4, 2025

Conditions

Keywords

hip replacementexercise therapyreal-time feedbackmovement analysis

Outcome Measures

Primary Outcomes (1)

  • Frontal knee angle range of motion Pelvic obliquity angle range of motion Frontal trunk angle range of motion

    Above listed angles derived from assessed Activities of Daily Living (ADL) tasks

    Baseline 4 weeks post-surgery; 3-months post-surgery; 6-months post-surgery

Secondary Outcomes (1)

  • Harris Hip Score (HHS) Hip Osteoarthritis Outcome Score (HOOS) Short-Form-Health Survey (SF12) International Physical Activity Questionnaire - short form (IPAQ) if applicable: Knee Injury and Osteoarthritis Outcome Score (KOOS)

    Baseline 4 weeks post-surgery; 3-months post-surgery; 6-months post-surgery

Other Outcomes (1)

  • 3D-movement-analysis parameters (kinematic, kinetic, spatio-temporal)

    Baseline 4 weeks post-surgery; 3-months post-surgery; 6-months post-surgery

Study Arms (2)

Intervention Group (IG)

EXPERIMENTAL

IG will perform the home-exercise program supported by the digital real-time exercise feedback prototype for digitally guided training.

Other: Supervised group exercise therapy

Control Group (CG)

ACTIVE COMPARATOR

The CG will perform a usual care home-exercise by means of printed hand-outs describing each exercise.

Other: Supervised group exercise therapy

Interventions

Participants will participate in a 90 minutes supervised group exercise therapy program 2 times a week for 8 consecutive weeks.

Control Group (CG)Intervention Group (IG)

Eligibility Criteria

Age50 Years - 75 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • age from 50-75 years
  • body mass index from 18.5 to 29.99 kg/m²
  • able to walk without walking aids at baseline assessment
  • scheduled for elective unilateral total hip arthroplasty surgery
  • willing to comply with all study related procedures and provide informed consent

You may not qualify if:

  • symptoms of delayed healing concerning the implant
  • cardio-respiratory symptoms limiting exercise therapy (for example severe heart disease)
  • symptoms of musculoskeletal or cardio-respiratory overload
  • neuro-motor diseases (for example previous Stroke, Multiple Sclerosis, Morbus Parkinson Disease)
  • other reasons which would lead to obvious limitations concerning their participation in the intervention (for example severe contralateral osteoarthritis (OA), lower extremity fractures within previous 12 months, other elective lower extremity surgery within 6 months, inadequacy in German concerning questionnaires and exercise instructions, mentally unable to participate)
  • non-adherence (see definition under "therapeutic adherence").

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Orthopaedic Hospital Vienna Speising

Vienna, 1130, Austria

Location

Related Publications (1)

  • Widhalm K, Maul L, Durstberger S, Putz P, Leder-Berg S, Kainz H, Augat P. Efficacy of Real-Time Feedback Exercise Therapy in Patients Following Total Hip Arthroplasty: Protocol for a Pilot Cluster-Randomized Controlled Trial. JMIR Res Protoc. 2024 Aug 20;13:e59755. doi: 10.2196/59755.

Study Officials

  • Klaus Widhalm

    FH Campus Wien, University of Applied Sciences

    STUDY DIRECTOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Masking Details
Participants will be randomly assigned to IG or CG after baseline assessment. Due to the nature of the studied conditions, it will not be possible to blind researchers or participants.
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: cluster-randomized, two-arm parallel-group controlled trial
Sponsor Type
OTHER
Responsible Party
SPONSOR INVESTIGATOR
PI Title
Head of study

Study Record Dates

First Submitted

November 30, 2023

First Posted

December 7, 2023

Study Start

January 10, 2024

Primary Completion

April 15, 2025

Study Completion

May 5, 2025

Last Updated

August 8, 2025

Record last verified: 2025-08

Data Sharing

IPD Sharing
Will share
Shared Documents
STUDY PROTOCOL, SAP, CSR
Time Frame
The study protocol including the statistic analysis plan will be submitted for publication in Trials Journal at begin of 2024. The final results will be submitted for publication to a relevant journal by the end of 2025.
Access Criteria
Open Access publication

Locations