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

Gait efficiency using the C-Leg.

Michael S Orendurff1, Ava D Segal, Glenn K Klute

  • 1Motion Analysis Laboratory, Center of Excellence for Limb Loss Prevention and Prosthetic Engineering, Department of Veterans Affairs Puget Sound Health Care System, 1660 South Columbian Way, Seattle, WA 98108, USA. morendurff@hotmail.com

Journal of Rehabilitation Research and Development
|July 19, 2006
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

Center of pressure adaptations to tuning of plantarflexion range of motion and stiffness in multi-function articulated ankle-foot orthosis during walking in individuals post-stroke.

Journal of biomechanics·2026
Same author

Optimization of Active Backpack Loading Patterns to Improve the Walking Performance for Individuals With a Unilateral Transtibial Amputation.

Journal of biomechanical engineering·2026
Same author

Influence of prosthetic foot selection for load carriage on prosthetic limb mechanical work.

Gait & posture·2026
Same author

Impact of social distancing measures on step activity in individuals with lower-limb amputation during the COVID-19 pandemic.

Assistive technology : the official journal of RESNA·2026
Same author

Impact of adjustable dorsiflexion range and stiffness in articulated ankle-foot orthosis on center of pressure progression in post-stroke gait.

Journal of biomechanics·2026
Same author

Lower-limb joint work symmetry responses to load carriage and prosthetic foot type during transtibial amputee walking.

Journal of biomechanics·2025
Same journal

Presentation Highlights: International service delivery.

Journal of rehabilitation research and development·2023
Same journal

Iraq/Afghanistan-era Veterans with back pain: Characteristics and predictors of compensation and pension award.

Journal of rehabilitation research and development·2021
Same journal

Prosthetic fitting, use, and satisfaction following lower-limb amputation: A prospective study.

Journal of rehabilitation research and development·2020
Same journal

Tongue-controlled robotic rehabilitation: A feasibility study in people with stroke.

Journal of rehabilitation research and development·2017
Same journal

Utility of a multimodal neurophysiologic assessment tool in distinguishing between individuals with and without a history of mild traumatic brain injury.

Journal of rehabilitation research and development·2017
Same journal

Efficacy of extremely low-frequency magnetic field in fibromyalgia pain: A pilot study.

Journal of rehabilitation research and development·2017
See all related articles

Microprocessor-controlled prosthetic knees, like the C-Leg, offer potential gait efficiency improvements for transfemoral (TF) amputees. While not statistically significant, the C-Leg allowed higher self-selected walking speeds, suggesting greater efficiency at preferred paces.

Area of Science:

  • Biomechanics
  • Prosthetics and Orthotics
  • Rehabilitation Engineering

Background:

  • Microprocessor-controlled prosthetic knees aim to enhance gait efficiency in transfemoral (TF) amputees.
  • Previous claims suggest improved walking performance with these advanced prosthetic devices.

Purpose of the Study:

  • To prospectively compare the gait efficiency of the Mauch SNS and C-Leg microprocessor-controlled knees in TF amputees.
  • To evaluate the impact of these prosthetic knees on oxygen cost and walking speed.

Main Methods:

  • A prospective randomized crossover trial involving eight TF amputees.
  • Each participant underwent a 3-month acclimation period with each prosthetic knee.
  • Net oxygen cost was measured at four walking speeds (0.8, 1.0, 1.3 m/s, and self-selected walking speed - SSWS).

Related Experiment Videos

Main Results:

  • The C-Leg demonstrated small, statistically insignificant reductions in net oxygen cost compared to the Mauch SNS across all tested speeds (p > 0.190).
  • TF amputees selected significantly higher SSWS with the C-Leg (1.31 m/s) versus the Mauch SNS (1.21 m/s) (p = 0.046).
  • Higher SSWS with the C-Leg did not result in increased oxygen costs (p = 0.270), indicating potential efficiency gains at preferred speeds.

Conclusions:

  • Microprocessor-controlled prosthetic knees, specifically the C-Leg, may offer improved gait efficiency for transfemoral amputees, particularly at self-selected walking speeds.
  • While oxygen cost reductions were not statistically significant, the ability to achieve higher self-selected walking speeds suggests a functional benefit.
  • Further research may explore long-term benefits and patient-reported outcomes associated with different microprocessor-controlled prosthetic knee technologies.