NCT03805464

Brief Summary

The purpose of this study is to determine the sensitivity of a wearable sensor to detect changes in knee joint loading using an experimental knee joint effusion as a model for a common clinical physiological alteration in joint status. The rationale for this project is that it will establish the efficacy of an inexpensive, clinically, and publicly available device that can detect changes in biomechanical loading due to acute physiologic change in joint status. The study will utilize a cross-sectional cohort study design and will seek to enroll 25 male and female healthy adult participants (18-35 yo). Participants will report to the laboratory for three total sessions (Session 1: informed consent and task familiarization; Session 2: testing; Session 3: knee joint status assessment). The primary outcomes of interest include lower extremity thigh and shank acceleration and velocity data (wearable sensor data), lower extermity 3D kinematics and kinetics (motion capture data), and lower extremity muscle function (EMG data) during walking gait, as well as functional balance and patient-reported subjective outcomes. Data will be analyzed by calculating change scores from the pre- to post-experimental effusion outcome measure testing. Paired-samples t-tests and Cohen's d effect sizes will be used to assess changed in wearable sensor data from pre- to post-experimental effusion. Correlation statistics will be used to determine if there are association between the motion capture and wearable sensor data. The potential risks associated with an experimental joint effusion will be addressed by maintaining appropriate sterile conditions and having the participant check-in with the PI (licensed healthcare provider) at 48 hours following testing session.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
14

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Jan 2019

Longer than P75 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

First Submitted

Initial submission to the registry

January 11, 2019

Completed
4 days until next milestone

First Posted

Study publicly available on registry

January 15, 2019

Completed
14 days until next milestone

Study Start

First participant enrolled

January 29, 2019

Completed
4.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 18, 2023

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

May 18, 2023

Completed
Last Updated

January 22, 2026

Status Verified

February 1, 2025

Enrollment Period

4.3 years

First QC Date

January 11, 2019

Last Update Submit

January 20, 2026

Conditions

Keywords

biomechanicsinertial measurement unit

Outcome Measures

Primary Outcomes (7)

  • Change in Peak Vertical Ground Reaction Force

    Kinetic Loading Variable

    Immediately Pre- (10 minutes) and Post- (10 minutes) Effusion

  • Change in Peak Internal Knee Extension Moment

    Kinetic Loading Variable

    Immediately Pre- (10 minutes) and Post- (10 minutes) Effusion

  • Change in Peak Knee Power

    Kinetic Loading Variable

    Immediately Pre- (10 minutes) and Post- (10 minutes) Effusion

  • Change in Shank Acceleration

    Accelerometer Variable

    Immediately Pre- (10 minutes) and Post- (10 minutes) Effusion

  • Change in Thigh Acceleration

    Accelerometer Variable

    Immediately Pre- (10 minutes) and Post- (10 minutes) Effusion

  • Change in Shank Angular Velocity

    Gyroscope Variable

    Immediately Pre- (10 minutes) and Post- (10 minutes) Effusion

  • Change in Thigh Angular Velocity

    Gyroscope Variable

    Immediately Pre- (10 minutes) and Post- (10 minutes) Effusion

Secondary Outcomes (4)

  • Change in Quadriceps EMG

    Immediately Pre- (10 minutes) and Post- (10 minutes) Effusion

  • Change in Hamstring EMG

    Immediately Pre- (10 minutes) and Post- (10 minutes) Effusion

  • Change in Visual Analog Scale Pain

    Immediately Pre- (10 minutes) and Post- (10 minutes) Effusion

  • Change in International Knee Documentation Committee

    Immediately Pre- (10 minutes) and Post- (10 minutes) Effusion

Study Arms (1)

Knee Joint Effusion

EXPERIMENTAL

Participants will receive a one-time injection of 60mL of sterile saline into the suprapatellar space of the dominant lower extremity. This injection will be conducted under ultrasound guidance by a board-certified orthopedic surgeon.

Other: Knee Joint Effusion

Interventions

60mL saline injection into the supra-patellar region of the knee

Knee Joint Effusion

Eligibility Criteria

Age18 Years - 35 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64)

You may qualify if:

  • Male and female
  • Chronological age 18-35 at the time of study participation
  • Physically active (at least 30 minutes of physical activity, 3x/week)
  • Tegner Activity Scale score at least 5/10

You may not qualify if:

  • History of lower extremity or lumbar spine surgery.
  • History of lower extremity or lumbar spine injury in the prior 6 months.
  • History of major ligamentous damage.
  • Current knee pain.
  • Known neurological condition, autoimmune condition, cardiovascular disease.
  • History of epilepsy, seizures, concussion within the prior 6 months.
  • Currently taking pain altering medication.
  • Fear of needles
  • Unable to read and understand English language
  • Pregnancy

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Michael W. Krzyzewski Human Performance Laboratory

Durham, North Carolina, 27705, United States

Location

MeSH Terms

Conditions

Knee InjuriesOsteoarthritis, Knee

Condition Hierarchy (Ancestors)

Leg InjuriesWounds and InjuriesOsteoarthritisArthritisJoint DiseasesMusculoskeletal DiseasesRheumatic Diseases

Study Design

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

Study Record Dates

First Submitted

January 11, 2019

First Posted

January 15, 2019

Study Start

January 29, 2019

Primary Completion

May 18, 2023

Study Completion

May 18, 2023

Last Updated

January 22, 2026

Record last verified: 2025-02

Data Sharing

IPD Sharing
Will not share

Locations