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

Effect of hip position on gravity effect torque

W J Ford1, S D Bailey, K Babich

  • 1Krannert Graduate School of Physical Therapy, University of Indianapolis, IN 46277.

Medicine and Science in Sports and Exercise
|February 1, 1994
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

Surface-enhanced stimulated Raman scattering and fluorescence probing of plasmonic nanoparticles in cellular environments: insights into their spatial distribution and aggregation.

Nanoscale advances·2026
Same author

Epithelial-Stromal Interactions in Barrett's Esophagus Modeled in Human Organ Chips.

Gastro hep advances·2024
Same author

Epigenomic alterations define lethal CIMP-positive ependymomas of infancy.

Nature·2014
Same author

High prevalence of contralateral ankle abnormalities in association with knee osteoarthritis and malalignment.

Osteoarthritis and cartilage·2013
Same author

External exercise information provides no immediate additional performance benefit to untrained individuals in time trial cycling.

British journal of sports medicine·2011
Same author

Association of bone scintigraphic abnormalities with knee malalignment and pain.

Annals of the rheumatic diseases·2008
Same journal

Cardiorespiratory Fitness and Age-Related Decline in Kidney Function among Individuals with Preserved Kidney Health: The Aging Kidney Study.

Medicine and science in sports and exercise·2026
Same journal

Objectively Measured Cardiorespiratory Fitness as a Potential Biomarker for Alzheimer's Disease Risk in Older Adults: Evidence from the Generation 100 Study.

Medicine and science in sports and exercise·2026
Same journal

The Effects of Eight-Week Traditional Aerobic Exercise and Exergaming on Dual-Task Performance and Prefrontal Cortex Activation in Older Adults.

Medicine and science in sports and exercise·2026
Same journal

The Impact of Cardiorespiratory Fitness on Cytotoxic T Cell Metabolism and Function.

Medicine and science in sports and exercise·2026
Same journal

Female Athletes Through the Lifespan: Clinical Considerations and a Call for Comprehensive Sports Medicine Healthcare.

Medicine and science in sports and exercise·2026
Same journal

Artificial Intelligence in Exercise Science and Sports Medicine.

Medicine and science in sports and exercise·2026
See all related articles

The seated position results in higher gravity effect torque (GET) than the supine position during knee isokinetic testing. This difference impacts peak torque measurements, suggesting the supine position improves testing validity.

Area of Science:

  • Biomechanics
  • Kinesiology
  • Sports Medicine

Background:

  • Hip position is theorized to affect knee gravity effect torque (GET) during isokinetic testing.
  • Existing research lacks data on the influence of hip position on GET and its impact on isokinetic measurements.

Purpose of the Study:

  • To compare GET in seated versus supine positions.
  • To evaluate the effect of seated and supine GET on isokinetic peak torque.
  • To investigate the relationship between hamstring flexibility and GET.

Main Methods:

  • Gravity effect torque (GET) was measured in both supine and seated hip positions.
  • Isokinetic peak torque (flexion/extension) was assessed at 1.047 and 5.235 rads·s⁻¹.
  • Hamstring flexibility was determined using the active knee extension test (AKET).

Related Experiment Videos

Main Results:

  • Mean seated GET was significantly higher (5.64 Nm) than supine GET (P=0.0001).
  • Significant correlations were found between hamstring flexibility and GET in both positions (P=0.0001, P=0.0058).
  • Differences in GET between positions led to significant peak torque variations (P=0.0002–0.0049).

Conclusions:

  • The supine position yields lower and potentially more valid GET measurements for isokinetic knee testing.
  • Differences in GET due to hip position can introduce significant errors in peak torque data.
  • Recommendations favor the supine position to enhance the accuracy of isokinetic assessments, particularly for injured populations.