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 dynamometer for evaluation of dynamic muscle work

C Bosco1, A Belli, M Astrua

  • 1Department of Physical Medicine and Rehabilitation, Faculty of Medicine and Surgery, University of Roma Tor Vergata, Rome, Italy.

European Journal of Applied Physiology and Occupational Physiology
|January 1, 1995
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

Robotic liver resection for non colorectal metastases: how to deal with it. A multi-center case series.

European journal of surgical oncology : the journal of the European Society of Surgical Oncology and the British Association of Surgical Oncology·2026
Same author

Tirbanibulin 1% real-world use in 679 actinic keratoses patients during warm season (SUMM-AK study).

Journal of the European Academy of Dermatology and Venereology : JEADV·2025
Same author

Quantifying physical degradation alongside recording and stimulation performance of 980 intracortical microelectrodes chronically implanted in three humans for 956-2246 days.

medRxiv : the preprint server for health sciences·2024
Same author

Real-life effectiveness and safety of baricitinib in patients with severe alopecia areata: A 24-week Italian study.

Journal of the European Academy of Dermatology and Venereology : JEADV·2024
Same author

Neural subspaces of imagined movements in parietal cortex remain stable over several years in humans.

Journal of neural engineering·2024
Same author

Does early exercise intolerance effect time to return to play, symptom burden, neurocognition, Vestibular-Ocular-Motor (VOM) function and academic ability in acutely concussed student-athletes?

Brain injury·2024
Same journal

Reply to the letter by morton

European journal of applied physiology and occupational physiology·1999
Same journal

Effects of caffeine, ephedrine and their combination on time to exhaustion during high-intensity exercise.

European journal of applied physiology and occupational physiology·1999
Same journal

The effect of strength training on estimates of mitochondrial density and distribution throughout muscle fibres.

European journal of applied physiology and occupational physiology·1999
Same journal

Latency to CNS oxygen toxicity in rats as a function of PCO(2) and PO(2).

European journal of applied physiology and occupational physiology·1999
Same journal

Diurnal variations in ventilatory and cardiorespiratory responses to submaximal treadmill exercise in females.

European journal of applied physiology and occupational physiology·1999
Same journal

Comparison of cardiopulmonary responses to two types of dry-land upper-body exercise testing modes in competitive swimmers.

European journal of applied physiology and occupational physiology·1999
See all related articles

A new dynamometer accurately measures muscle work, including force, velocity, and power, during dynamic activities. Validation in athletes showed high reproducibility and strong correlations with performance metrics, establishing its reliability for sports science research.

Area of Science:

  • Sports Science
  • Biomechanics
  • Exercise Physiology

Background:

  • Accurate measurement of dynamic muscle work is crucial for athletic performance analysis.
  • Existing methods may lack precision or versatility in evaluating muscle power output.

Purpose of the Study:

  • To validate a novel dynamometer designed for precise measurement of dynamic muscle work.
  • To assess the device's reliability and correlation with established athletic performance indicators.

Main Methods:

  • The dynamometer utilizes gravitational loads and an infrared photo interrupter to measure displacement, calculating velocity, force, and power.
  • Validation involved 33 track and field athletes (throwers and jumpers) performing half-squat exercises and various performance tests.
  • Reproducibility was assessed through day-to-day half-squat exercises, and measurements were correlated with jumping and sprinting parameters.

Related Experiment Videos

Main Results:

  • High day-to-day reproducibility was observed for average push-off force (AF), velocity (AV), and power (AP) (r = 0.88–0.97).
  • Significant correlations were found between dynamometer outputs (AF, AV, AP) and athletic performance metrics (r = 0.53–0.97; P < 0.05–0.001).
  • The system demonstrated minimal maximal error (<1.2%) for all measured variables.

Conclusions:

  • The new dynamometer is a reliable and valid tool for assessing dynamic muscle work in athletes.
  • Its ability to measure force, velocity, and power provides valuable insights into athletic performance and training.
  • The device facilitates the establishment of force-velocity and power-velocity relationships across a wide range of loads.