Results 21 to 30 of about 358,679 (321)

Development of bipedal and quadrupedal locomotion in humans from a dynamical systems perspective [PDF]

open access: yes, 2012
The first phase in the development 0f locomotion, pr,öary variability would occur in normal fetuses and infants, and those with Uner Tan syndrome. The neural networks for quadrupedal locomotion have apparently been transmitted epigenetically through many
Tan, Prof. Dr. Uner
core   +2 more sources

Surprising simplicity in the modeling of dynamic granular intrusion

open access: yes, 2021
Granular intrusions, such as dynamic impact or wheel locomotion, are complex multiphase phenomena where the grains exhibit solid-like and fluid-like characteristics together with an ejected gas-like phase.
Agarwal, Shashank   +3 more
core   +1 more source

The hydrodynamic effects of undulating patterns on propulsion and braking performances of long-based fin

open access: yesAIP Advances, 2022
Bio-inspired long-based undulating fin propulsion is commonly employed in biological autonomous underwater vehicles (BAUVs), while the hydrodynamic characteristics of various undulating patterns are different.
Qiang-Qiang Hu, Yong-Liang Yu
doaj   +1 more source

Longitudinal bending stiffness does not affect running economy in Nike Vaporfly Shoes

open access: yesJournal of Sport and Health Science, 2022
Purpose: This study aimed to determine the independent effect of the curved carbon-fiber plate in the Nike Vaporfly 4% shoe on running economy and running biomechanics.
Laura A. Healey, Wouter Hoogkamer
doaj   +1 more source

Categorisation of activities of daily living of lower limb amputees during short-term use of a portable kinetic recording system: a preliminary study [PDF]

open access: yes, 2011
The purpose of this preliminary study was to determine the relevance of the categorisation of the load regime data to assess the functional output and usage of the prosthesis of lower limb amputees.
Frossard , Laurent   +4 more
core   +2 more sources

An Identical Twin Study on Human Achilles Tendon Adaptation: Regular Recreational Exercise at Comparatively Low Intensities Can Increase Tendon Stiffness

open access: yesFrontiers in Physiology, 2022
Achilles tendon adaptation is a key aspect of exercise performance and injury risk prevention. However, much debate exists about the adaptation of the Achilles tendon in response to exercise activities.
Freddy Sichting   +2 more
doaj   +1 more source

Energetic and Peak Power Advantages of Series Elastic Actuators in an Actuated Prosthetic Leg for Walking and Running

open access: yesActuators, 2014
A monoarticular series elastic actuator (SEA) reduces energetic and peak power requirements compared to a direct drive (DD) in active prosthetic ankle-foot design. Simulation studies have shown that similar advantages are possible for the knee joint. The
Martin Grimmer   +2 more
doaj   +1 more source

Ecological Burden of Modern Surgery: An Analysis of Total Knee Replacement’s Life Cycle

open access: yesArthroplasty Today, 2023
Background: It is estimated that surgical procedures account for 20%-30% of the greenhouse gases emissions from health-care systems. Total knee replacements (TKR) are one of the most frequently performed procedures in orthopaedics.
Camille Delaie, MD   +7 more
doaj   +1 more source

An Investigation of Running Kinematics with Recovered Anterior Cruciate Ligament Reconstruction on a Treadmill and In-Field Using Inertial Measurement Units: A Preliminary Study

open access: yesBioengineering
Anterior cruciate ligament reconstruction (ACLR) may affect movement even years after surgery. The purpose of this study was to determine possible interlimb asymmetries due to ACLR when running on a treadmill and in field conditions, with the aim of ...
Matteo Hill   +3 more
doaj   +1 more source

Quantification of the influence of drugs on zebrafish larvae swimming kinematics and energetics [PDF]

open access: yes, 2020
The use of zebrafish larvae has aroused wide interest in the medical field for its potential role in the development of new therapies. The larvae grow extremely quickly and the embryos are nearly transparent which allows easy examination of its internal ...
Jiang, Hui-Rong   +13 more
core   +2 more sources

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