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 Experiment Videos

A note on the speed-amplitude function in movement control.

K M Newell1, P A Hancock, R N Robertson

  • 1Institute for Child Behavior and Development, University of Illinois, Champaign 61820, USA.

Journal of Motor Behavior
|December 1, 1984
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

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

Sort by
Same author

Unraveling the Unexpected: How Pilots Can Successfully Manage Unexpected Events.

Human factors·2026
Same author

The role of ADHD in aggressive driving behavior among young adult drivers: effects of traffic aggressiveness and roadway environments.

Accident; analysis and prevention·2026
Same author

Human vigilance in the age of intelligent machines: Challenges and prospects.

Ergonomics·2026
Same author

Training for vigilance on the move using knowledge of results: The effects of feedback type on performance and subjective response.

Ergonomics·2025
Same author

Correction: How and why humans trust: A meta-analysis and elaborated model.

Frontiers in psychology·2025
Same author

Can ergonomics/human factors survive?

Ergonomics·2025
Same journal

Expertise Modulates Anticipatory Synergy Adjustments in a Rapid Motor Skill Under Temporal Constraints.

Journal of motor behavior·2026
Same journal

A Boundary of Ideomotor Control: Semantic Labels Bias Selection but Do Not Tune Motor Execution.

Journal of motor behavior·2026
Same journal

Strategies When Choosing Between Movement Options in a Sequential Task.

Journal of motor behavior·2026
Same journal

Transcranial Direct Current Stimulation Combined with Neurofunctional Motor Training in Autistic Children: A Randomized, Sham-Controlled, Double-Blind Clinical Trial.

Journal of motor behavior·2026
Same journal

Individualized Virtual Angle Offset Training for Patients with Stroke.

Journal of motor behavior·2026
Same journal

The Role of Exploratory Procedures in Perceiving Affordances in a Bimanual Wielding Task.

Journal of motor behavior·2026
See all related articles

Researchers studied elbow flexion speed and range of motion. Movement time increased exponentially until a discontinuity, suggesting complex control mechanisms beyond simple models for movement speed and accuracy.

Area of Science:

  • Biomechanics
  • Motor Control
  • Human Movement Science

Background:

  • Understanding the relationship between movement speed and amplitude is crucial for motor control research.
  • Previous models often simplify the complex dynamics of human limb movements.

Purpose of the Study:

  • To investigate the maximum average speed-amplitude relationship across the entire range of elbow flexion.
  • To identify potential constraints affecting movement time and speed at maximal ranges of motion.

Main Methods:

  • Experimental documentation of elbow flexion movements.
  • Kinematic analysis to measure speed, amplitude, and movement time.
  • Analysis across the full range of motion, including near-maximal amplitudes.

Related Experiment Videos

Main Results:

  • Minimum movement time increased exponentially with amplitude up to 94-97% of the maximum range.
  • A discontinuity in movement time was observed at near-maximal ranges, with time increasing at an accelerating rate.
  • The maximum average velocity-amplitude boundary for the speed-accuracy relationship was found to be curvilinear.

Conclusions:

  • Anatomical and morphological constraints likely cause the observed discontinuity in movement time at maximal ranges.
  • Simple pulse-step models of movement control are insufficient to explain the observed speed-amplitude dynamics.
  • The findings highlight the complex, non-linear nature of human motor control during rapid limb movements.