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

Cable Subjected to Concentrated Loads01:28

Cable Subjected to Concentrated Loads

1.4K
Flexible cables are commonly used in various applications for support and load transmission. Consider a cable fixed at two points and subjected to multiple vertically concentrated loads. Determine the shape of the cable and the tension in each portion of the cable, given the horizontal distances between the loads and supports.
1.4K
Cable Subjected to a Distributed Load01:24

Cable Subjected to a Distributed Load

1.1K
The analysis of suspension bridges is a complex and critical process that involves multiple factors, including the shape and tension of the main cables. The main cables of suspension bridges are subjected to distributed loads, which result in changes in tensile forces and deformation of the cable. These loads must be carefully considered to ensure that the bridge is safe and capable of supporting the weight of different loads.
1.1K
Muscles of the Shoulder01:23

Muscles of the Shoulder

9.2K
The muscles surrounding the shoulder girdle, including the clavicle and scapula, primarily stabilize the scapula. This stable base allows other muscles to move the humerus effectively. Scapular movements often mirror those of the humerus and extend its range of motion. For instance, raising the arm above the head would not be feasible without simultaneous upward rotation of the scapula.
Anterior Thoracic Muscles
The anterior thoracic muscles include the serratus anterior, subclavius, and...
9.2K
Reliability and Validity01:29

Reliability and Validity

13.9K
Reliability and validity are two important considerations that must be made with any type of data collection. Reliability refers to the ability to consistently produce a given result. In the context of psychological research, this would mean that any instruments or tools used to collect data do so in consistent, reproducible ways.
13.9K
Distribution Reliability and Automation01:25

Distribution Reliability and Automation

515
Distribution reliability in electrical power systems is critical for ensuring an uninterrupted power supply to consumers at minimal cost. According to IEEE Standard Terms, reliability is the probability that a device will function without failure over a specified time period or amount of usage. For electric power distribution, this translates to maintaining continuous power supply and addressing customer concerns over power outages. Several indices, as defined by IEEE Standard 1366-2012, are...
515
Cable Subjected to Its Own Weight01:13

Cable Subjected to Its Own Weight

798
Overhead power transmission lines rely on cables to carry electricity across large distances. To ensure the stability and functionality of these lines, it is crucial to understand the shape and tension experienced by the cables under the influence of their weight.
A generalized loading function is employed to analyze a cable subjected to its own weight. This function considers the force acting along the cable's arc length rather than its projected length, providing a more accurate...
798

You might also read

Related Articles

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

Sort by
Same author

Mechanical energy analysis identifies compensatory strategies in individuals with and without Non-specific chronic low back pain.

Scientific reports·2026
Same author

Burnout prevalence and its association with occupational stress, effort-reward imbalance, and depression among professional and semi-professional basketball coaches: A cross-sectional study.

Acta psychologica·2026
Same author

Infographic. Video analysis of muscle strains in sport: qualitative and quantitative situational characteristics across muscle groups.

British journal of sports medicine·2026
Same author

Epidemiology, aetiology, care and prevention strategies for pelvic floor disorders in young nulliparous female athletes in athletics: a scoping review.

BMJ open sport & exercise medicine·2026
Same author

'I coach them, I treat them, I listen to them': the multifaceted role of the coach - a qualitative study on stakeholders' perspectives on injury prevention and management in Senegal (Africa).

British journal of sports medicine·2026
Same author

Infographic. Translating a systematic review and meta-analysis on epidemiology of musculoskeletal injuries in athletics (track and field) into research and clinical practice.

British journal of sports medicine·2026
Same journal

Development and experimental characterization of a cadaveric stance simulator for residual limb biomechanics.

Medical engineering & physics·2026
Same journal

Rapid personalized computational modeling of the wrist.

Medical engineering & physics·2026
Same journal

SHAP-enabled explainable AI framework for clinical interpretation of valvular heart diseases via digital acoustic features.

Medical engineering & physics·2026
Same journal

Three-dimensional motion analysis of a total wrist prosthesis during the dart-throwing motion: a cadaveric study.

Medical engineering & physics·2026
Same journal

Patient-specific left ventricular hypertrophy under severe hypertension: mechanistic insights from Hill-type computational simulations.

Medical engineering & physics·2026
Same journal

Enabling laboratory-based personalization of musculoskeletal spine models: a standardized rail-guided ultrasound method.

Medical engineering & physics·2026
See all related articles

Related Experiment Video

Updated: Feb 4, 2026

Reverse Total Shoulder Arthroplasty
10:10

Reverse Total Shoulder Arthroplasty

Published on: July 5, 2011

43.9K

Shoulder loading reliability in seated able-bodied subjects.

Richard Ballas1, Nicolas Peyrot2, Paul Allard3

  • 1Centre Hospitalier Gabriel Martin, Service de Chirurgie Orthopédique, 38, rue Labourdonnais, 97460 Saint Paul, Ile de La Réunion, France; Laboratoire IRISSE (EA4075), UFR SHE, Université de La Réunion, Le Tampon, Ile de La Réunion, France.

Medical Engineering & Physics
|October 9, 2018
PubMed
Summary
This summary is machine-generated.

This study found high test-retest reliability for a new shoulder stability test in seated individuals. Increasing arm load and multiple trials improved the accuracy of shoulder performance assessments.

Keywords:
Center of pressureNeuromuscular controlPostural controlReliabilityReproducibilitySeated balanceShoulderShoulder instability

More Related Videos

Author Spotlight: Treating Frozen Shoulder with Small Needle Knife Therapy
05:52

Author Spotlight: Treating Frozen Shoulder with Small Needle Knife Therapy

Published on: November 17, 2023

2.3K
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

3.8K

Related Experiment Videos

Last Updated: Feb 4, 2026

Reverse Total Shoulder Arthroplasty
10:10

Reverse Total Shoulder Arthroplasty

Published on: July 5, 2011

43.9K
Author Spotlight: Treating Frozen Shoulder with Small Needle Knife Therapy
05:52

Author Spotlight: Treating Frozen Shoulder with Small Needle Knife Therapy

Published on: November 17, 2023

2.3K
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

3.8K

Area of Science:

  • Biomechanics
  • Sensorimotor Control
  • Rehabilitation Science

Background:

  • Shoulder instability and sensorimotor control deficits require accurate assessment methods for diagnosis and rehabilitation monitoring.
  • Assessing shoulder performance in a seated position with hand prehension simplifies balance control, making it clinically relevant.
  • Existing methods may not fully capture shoulder stability under functional loading conditions.

Purpose of the Study:

  • To evaluate the test-retest repeatability of a novel shoulder stability test.
  • To assess the influence of varying arm loading conditions on the test's reliability.
  • To determine the optimal number of trials for reliable shoulder stability assessment.

Main Methods:

  • Able-bodied subjects were seated on a force plate-mounted chair.
  • A novel shoulder stability test involved applying horizontal, posterior forces to the ipsilateral hand in prehension.
  • Four loading conditions (0-3 kg) and three consecutive trials were used, with ten postural balance parameters calculated from center of pressure data.

Main Results:

  • Intra-class correlation coefficients (ICCs) for test-retest reliability generally increased with applied load, ranging from 0.727 to 0.948.
  • Postural sway parameters (Tz values) exhibited a non-linear increase with increasing applied load.
  • High reliability was observed with a 3 kg load and three trials.

Conclusions:

  • The novel shoulder stability test demonstrates high test-retest reliability in seated, able-bodied subjects.
  • Adequate loading (3 kg) and multiple trials (3) enhance the reliability of this shoulder assessment.
  • This test offers a promising tool for evaluating shoulder performance and documenting rehabilitation progress.