NCT03484910

Brief Summary

Osteoarthritis (OA) is one of the most common joint diseases causing pain, muscle weakness and disability in older population. Quadriceps muscle weakness is one of the recognized risk factors for the development and the progression of the disease. Increasing the muscle strength could actually bring many benefits to the knee OA patients. The purposes of this study are 1) to investigate the effects of combining the EMG biofeedback technique into a stationary cycling exercise on the activities of vastus medialis (VM) in people with medial compartment knee OA; 2) To investigate the efficiency of a 6-week cycling exercise program on improving of quadriceps muscle strength and endurance, physical functions and pain in these patients and compare between the conditions of with or without EMG biofeedback; 3) To determine the relationships between the muscle activities and the kinematics of the knee joint during this cycling exercise program; and therefore to find the mechanism of the improvement on muscle activities in the intervention of cycling combining EMG biofeedback. In this study, we will enroll the knee OA patients from our hospital, and they will be randomly assigned either to the control group, who will cycle without biofeedback, or the biofeedback group, who will cycle with a real-time visual EMG biofeedback, during the six-week training program. The exercise program consisted of a 5-minute warm-up with low-resistance cycling, 30-minute moderate-resistance cycling exercise, and 5-minute cool down session. . The knee adduction angle, quadriceps strength and endurance, KOOS Chinese version, VAS scale will also be measured at baseline and after six weeks of intervention. Mixed-model repeated measure analysis of variance (ANOVA) will be used to determine if there are any differences in the kinematic, myoelectric, muscle strength and endurance. It is hoped that the results of this study could provide information regarding the proper and efficient training strategy for the OA knee patients, and deliver the concepts of proper exercise technique to enhance health in the community.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
23

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Mar 2018

Typical duration for not_applicable

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

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

March 2, 2018

Completed
17 days until next milestone

First Submitted

Initial submission to the registry

March 19, 2018

Completed
14 days until next milestone

First Posted

Study publicly available on registry

April 2, 2018

Completed
1.8 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 18, 2020

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

January 18, 2020

Completed
Last Updated

November 8, 2022

Status Verified

November 1, 2022

Enrollment Period

1.9 years

First QC Date

March 19, 2018

Last Update Submit

November 7, 2022

Conditions

Outcome Measures

Primary Outcomes (3)

  • Change of quadriceps strength

    Change from Baseline quadriceps strength after six-week training

    Baseline and after six-week training

  • Change of Functional questionnaire

    Change from Baseline KOOS Chinese version after six-week training. The Knee Injury and Osteoarthritis Outcome Score (KOOS) is patient-administered that commonly used to evaluate the extent of knee pain and functional impairments in patients with different knee conditions, including knee OA. There are five subscales in this questionnaire.The score range is 0-100 and calculated for each subscale with lower score indicating extreme problems.

    Baseline and after six-week training

  • Change of Pain

    Change from Baseline VAS scale after six-week training. A standard 10-centimeter visual analog scale (VAS) is a unidimensional measure of pain intensity. The score range is 0-10 with a higher score indicating greater pain intensity.

    Baseline and after six-week training

Secondary Outcomes (1)

  • Changes of thigh muscle activation

    Baseline, after 3-week and six-week training

Study Arms (2)

BFB group

EXPERIMENTAL

Exercise therapy - Six-week training program of stationary cycling with a real-time visual EMG biofeedback

Other: Exercise therapy

CON group

ACTIVE COMPARATOR

Exercise therapy - Six-week training program of stationary cycling without EMG biofeedback

Other: Exercise therapy

Interventions

Six-week training program of stationary cycling with / without a real-time visual EMG biofeedback

BFB groupCON group

Eligibility Criteria

Age45 Years - 70 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • the OA knee patients are those who had medial compartment tibiofemoral osteoarthritis in either one or both of their knees, had at least a grade 2 on the Kellgren-Lawrence score, which was verified with radiographs and a diagnosis by a physician

You may not qualify if:

  • if the participant had been diagnosed with OA in the hip or ankle joints, had a lower extremity joint replacement, had knee joint arthroscopic surgery or intra-articular injections within 3 months prior to testing, had systemic inflammatory arthritis such as rheumatoid or psoriatic arthritis, had lower back pain that referred to the lower limbs, or those who had cardiovascular disease or other risk factor which precluded participation in aerobic exercise

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

China Medical University

Taichung, 40402, Taiwan

Location

Related Publications (1)

  • Chang CM, Chung H, Hsu HC, Chen LT, Lin RY, Lin HC. Effectiveness of stationary cycling with electromyographic biofeedback on neuromuscular control and function in individuals with knee osteoarthritis: a feasibility study. BMC Musculoskelet Disord. 2025 Jun 3;26(1):547. doi: 10.1186/s12891-025-08794-7.

MeSH Terms

Conditions

Osteoarthritis, Knee

Interventions

Exercise Therapy

Condition Hierarchy (Ancestors)

OsteoarthritisArthritisJoint DiseasesMusculoskeletal DiseasesRheumatic Diseases

Intervention Hierarchy (Ancestors)

RehabilitationAftercareContinuity of Patient CarePatient CareTherapeuticsPhysical Therapy Modalities

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
PARTICIPANT
Purpose
SUPPORTIVE CARE
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Associate Professor

Study Record Dates

First Submitted

March 19, 2018

First Posted

April 2, 2018

Study Start

March 2, 2018

Primary Completion

January 18, 2020

Study Completion

January 18, 2020

Last Updated

November 8, 2022

Record last verified: 2022-11

Data Sharing

IPD Sharing
Will not share

Locations