Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Knee Joint

Knee Joint

The knee joint is the most complicated joint in the body. It consists of three articulations– two tibiofemoral and one patellofemoral. As is characteristic of synovial joints, the knee joint has a thin articular capsule that partially surrounds this joint cavity. Additionally, several ligaments, muscles, and cartilaginous structures support the movement of the knee.
A total of seven ligaments support the knee joint. The patellar ligament, which is also attached to the quadriceps femoris...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

Correction: Correlation study: electrical impedance-based approximation of knee joint angle and extensor strength during concentric knee extension.

BMC musculoskeletal disorders·2026

Same author

Effectiveness of inpatient versus outpatient rehabilitation following total knee arthroplasty on clinical and functional outcomes in Germany: a non-randomized clinical trial.

BMC sports science, medicine & rehabilitation·2026

Same author

Fetal calf serum concentration and sex did not affect the differentiation of human primary osteoblasts, in contrast to dexamethasone.

European journal of cell biology·2026

Same author

A validated in vitro approach for low-frequency alternating-current stimulation of stem cells: From electrode characterization to biological responses.

Protoplasma·2026

Same author

Evaluating the electrical stimulation of bone cells based on an induced transmembrane potential model and intracellular calcium levels.

Journal of tissue engineering·2026

Same author

Age Prediction of Hematoma from Hyperspectral Images Using Convolutional Neural Networks.

Journal of imaging·2026

Same journal

An Adams' Arch -based anatomical classification system guiding internal fixation strategies for non-displaced femoral neck fractures in elderly patients: a finite element analysis.

BMC musculoskeletal disorders·2026

Same journal

Biomechanical characteristics of osteotomy correction for kyphosis secondary to ankylosing spondylitis: a finite element study.

BMC musculoskeletal disorders·2026

Same journal

Leisure-time physical activity and low back pain in Switzerland: results from the 2022 cross-sectional Swiss Health Survey.

BMC musculoskeletal disorders·2026

Same journal

Anterior auxiliary limited open incision for Schatzker IV total medial plateau fractures with posterolateral collapse: a retrospective study.

BMC musculoskeletal disorders·2026

Same journal

Biomechanical evaluation of a novel cervical interfacet self-locking cage versus ACDF: a goat cadaveric study combined with human CT-based finite element analysis.

BMC musculoskeletal disorders·2026

Same journal

Pelvic alignment and plantar pressure asymmetry in adolescents with idiopathic scoliosis: a cross-sectional observational study.

BMC musculoskeletal disorders·2026

See all related articles

Search research articles

Related Experiment Video

Updated: Feb 20, 2026

In vivo Measurement of Knee Extensor Muscle Function in Mice

In vivo Measurement of Knee Extensor Muscle Function in Mice

Published on: March 4, 2021

Correlation study: electrical impedance-based approximation of knee joint angle and extensor.

Jacob P Thönes¹, Franziska Geiger², Judith Osterloh²

¹Institute of Communications Engineering, Rostock, Germany. jacob.thoenes@uni-rostock.de.

BMC Musculoskeletal Disorders

|February 19, 2026

Summary

This summary is machine-generated.

Electrical impedance tomography (EIT) offers a non-invasive way to monitor muscle function. This study shows EIT signals can accurately estimate knee extensor strength and joint angle for practical clinical use.

Keywords:

Impedance measurements Muscle function

More Related Videos

Using a Knee Arthrometer to Evaluate Tissue-specific Contributions to Knee Flexion Contracture in the Rat

Using a Knee Arthrometer to Evaluate Tissue-specific Contributions to Knee Flexion Contracture in the Rat

Published on: November 9, 2018

An Inertial Measurement Unit Based Method to Estimate Hip and Knee Joint Kinematics in Team Sport Athletes on the Field

An Inertial Measurement Unit Based Method to Estimate Hip and Knee Joint Kinematics in Team Sport Athletes on the Field

Published on: May 26, 2020

Related Experiment Videos

Last Updated: Feb 20, 2026

In vivo Measurement of Knee Extensor Muscle Function in Mice

In vivo Measurement of Knee Extensor Muscle Function in Mice

Published on: March 4, 2021

Using a Knee Arthrometer to Evaluate Tissue-specific Contributions to Knee Flexion Contracture in the Rat

Using a Knee Arthrometer to Evaluate Tissue-specific Contributions to Knee Flexion Contracture in the Rat

Published on: November 9, 2018

An Inertial Measurement Unit Based Method to Estimate Hip and Knee Joint Kinematics in Team Sport Athletes on the Field

An Inertial Measurement Unit Based Method to Estimate Hip and Knee Joint Kinematics in Team Sport Athletes on the Field

Published on: May 26, 2020

Area of Science:

Biomedical Engineering
Musculoskeletal Research
Rehabilitation Technology

Background:

Musculoskeletal disorders significantly impact patient mobility and quality of life.
Accurate muscle function monitoring is vital for diagnosis and treatment.
Existing methods like dynamometry lack daily clinical applicability.

Purpose of the Study:

To explore electrical impedance tomography (EIT) as a non-invasive tool for assessing muscle function.
To establish a practical, clinically relevant method for estimating muscle strength and joint angle.

Main Methods:

EIT data were collected from the thigh during controlled knee extension exercises.
Measurements were synchronized with a dynamometer to establish ground truth.
A data-driven model analyzed EIT-derived conductivity changes related to muscle activation.

Main Results:

EIT signals demonstrated a clear correlation with knee joint angle.
The EIT-based approach effectively estimated extensor strength.
The non-invasive nature of EIT was confirmed.

Conclusions:

Electrical impedance tomography shows significant potential for portable, real-time muscle function monitoring.
EIT offers a practical alternative to traditional methods for clinical assessment of musculoskeletal conditions.
This technology could enhance the management and understanding of muscle disorders.