Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Adjusting a Traverse01:12

Adjusting a Traverse

66
In the site survey of a four-sided traverse, internal angles are essential to ensure geometric accuracy. The survey revealed that the sum of the measured internal angles was 359 degrees and 48 minutes, which is 12 minutes less than the expected 360 degrees. This discrepancy signals an error likely arising from measurement inaccuracies during the fieldwork.To rectify this error, the adjustment process involved distributing the 12-minute shortfall equally across the four internal angles. By...
66

You might also read

Related Articles

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

Sort by
Same author

Configuration-Dependent Nanoarchitectonic Effects of Linear and Cyclic Calcium Polyphosphates on Mitochondrial Energy Metabolism and Osteogenic Differentiation.

ACS applied materials & interfaces·2026
Same author

Pathology-Informed Augmentation Improves Cross-Cohort IMU-to-vGRF Estimation Between Healthy Adults and Adults With Osteoarthritis.

IEEE transactions on neural systems and rehabilitation engineering : a publication of the IEEE Engineering in Medicine and Biology Society·2026
Same author

PAD4-mediated citrullination of IGF2BP2 stabilizes MCM mRNAs to drive intrahepatic cholangiocarcinoma progression.

Journal of advanced research·2026
Same author

Dynamic frailty trajectories and risk of chronic obstructive pulmonary disease: a large-scale prospective cohort study.

BMC pulmonary medicine·2026
Same author

Mechanism underlying the enhancement of emulsifying properties of millet bran prolamine via ultrasound-assisted gallic acid covalent-binding or carboxymethylation under pH-shifting.

International journal of biological macromolecules·2026
Same author

Optimizing the Person-Environment Fit in community childcare and parenting support systems: a pathway to improved wellbeing for children and parents.

Frontiers in public health·2026

Related Experiment Video

Updated: Jul 11, 2025

An Inertial Measurement Unit Based Method to Estimate Hip and Knee Joint Kinematics in Team Sport Athletes on the Field
06:52

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

8.0K

IMU Shoulder Angle Estimation: Effects of Sensor-to-Segment Misalignment and Sensor Orientation Error.

Kezhe Zhu, Jinxuan Li, Dongxuan Li

    IEEE Transactions on Neural Systems and Rehabilitation Engineering : a Publication of the IEEE Engineering in Medicine and Biology Society
    |November 8, 2023
    PubMed
    Summary

    Accurate shoulder angle estimation using inertial measurement units (IMUs) is improved by minimizing sensor-to-segment misalignment. This research quantifies error sources, guiding better IMU calibration for sports and rehabilitation.

    More Related Videos

    Measuring 3D In-vivo Shoulder Kinematics using Biplanar Videoradiography
    06:09

    Measuring 3D In-vivo Shoulder Kinematics using Biplanar Videoradiography

    Published on: March 12, 2021

    3.1K
    Video Movement Analysis Using Smartphones ViMAS: A Pilot Study
    07:51

    Video Movement Analysis Using Smartphones ViMAS: A Pilot Study

    Published on: March 14, 2017

    16.8K

    Related Experiment Videos

    Last Updated: Jul 11, 2025

    An Inertial Measurement Unit Based Method to Estimate Hip and Knee Joint Kinematics in Team Sport Athletes on the Field
    06:52

    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

    8.0K
    Measuring 3D In-vivo Shoulder Kinematics using Biplanar Videoradiography
    06:09

    Measuring 3D In-vivo Shoulder Kinematics using Biplanar Videoradiography

    Published on: March 12, 2021

    3.1K
    Video Movement Analysis Using Smartphones ViMAS: A Pilot Study
    07:51

    Video Movement Analysis Using Smartphones ViMAS: A Pilot Study

    Published on: March 14, 2017

    16.8K

    Area of Science:

    • Biomechanics
    • Human Movement Analysis
    • Wearable Sensor Technology

    Background:

    • Accurate shoulder joint angle estimation is vital for analyzing movement in sports, injury prevention, and rehabilitation.
    • Inertial measurement unit (IMU)-based estimation faces challenges due to unclear error factor influences.
    • Existing models lack detailed quantification of specific error sources affecting shoulder kinematics.

    Purpose of the Study:

    • To develop an analytical model quantifying the impact of sensor-to-segment misalignment and sensor orientation error on shoulder joint rotation error.
    • To identify the primary contributors to IMU-based shoulder angle estimation inaccuracies.
    • To provide strategies for enhancing the precision of IMU-driven movement analysis.

    Main Methods:

    • Proposed an analytical model utilizing quaternions and rotation vectors to decouple error sources.
    • Conducted experiments with 25 subjects performing diverse activities (yoga, golf, swimming, dance, badminton).
    • Quantified the relationship between specific error factor improvements and shoulder joint rotation error reduction.

    Main Results:

    • Sensor-to-segment misalignment, particularly in the extension/flexion dimension, significantly reduces shoulder joint rotation error.
    • A 1° improvement in thorax and upper arm calibration decreased error by 0.40° and 0.57°, respectively.
    • Enhancing IMU heading estimation was less effective, yielding a 0.23° error reduction per 1° improvement.

    Conclusions:

    • This study clarifies the quantitative relationship between shoulder angle estimation error and its key contributing factors.
    • Minimizing sensor-to-segment misalignment is identified as the most effective strategy for improving IMU-based shoulder angle accuracy.
    • Findings support advancements in IMU applications for upper limb rehabilitation, human-machine interaction, and athletic performance evaluation.