Published in Trials
BackgroundPatellofemoral pain (PFP) often affects young women, and the etiology is multifactorial and poorly understood. Conservative intervention has been focused on risk factors or aggravating factors and is composed of hip- and knee-strengthening exercises, as this population often has muscle weakness and poor motor control during daily and spor...
Published in Journal of the Brazilian Society of Mechanical Sciences and Engineering
In this paper, a novel four degrees of freedom (DOFs) parallel manipulator (PM) is introduced and its kinematics, workspace and optimal design are systematically studied. The manipulator is called 4RSS + PS PM having four active RSS type legs and one passive PS type leg. R, S and P stand for revolute, spherical and prismatic joints, respectively, a...
Published in Kant-Studien
The theory of space-time developed in Kant’s Critique of Pure Reason and his (1786) Metaphysical Foundations of Natural Science is connected to Leonhard Euler’s proof of invariance under Galilean transformations in the “On Motion in General” of the latter’s 1736 Analytical Mechanics. It is argued that Kant, by using the Principle of Relativity that...
Published in Journal of NeuroEngineering and Rehabilitation
IntroductionIndividuals with motor-incomplete SCI (m-iSCI) remain limited community ambulators, partly because they have difficulty with the skilled walking requirements of everyday life that require adaptations in inter-joint coordination and range of motion of the lower limbs. Following locomotor training, individuals with SCI show improvements i...
Published in Systematic Reviews
BackgroundNeck pain is a major public health problem. Our objective was to describe differences in measures of movement and posture between people with and without neck pain.MethodsPubMed and Embase were searched before 15 February 2019 for studies comparing people with neck pain with controls using electronic measurements of neck movement and/or p...
This paper deals with the modeling and vision-based control of large-dimension cable-driven parallel robots. Inverse kinematics and instantaneous inverse kinematics models are derived from the elastic catenary cable modeling. These models turn out to be dependent on the pose of the mobile platform (end-effector), on the cable tangent directions and...
Published in Journal of NeuroEngineering and Rehabilitation
BackgroundFor evaluation of upper limb impairment and activity capacity, Fugl-Meyer Assessment of Upper Extremity (FMA-UE) and Action Research Arm Test (ARAT) are recommended to be included in stroke trials. To improve the understanding of mechanisms of motor recovery, and differentiate between restitution and compensation, kinematic analysis is al...
Published in Systematic Reviews
BackgroundUnderstanding the effects of gait speed on biomechanical variables is fundamental for a proper evaluation of alterations in gait, since pathological individuals tend to walk slower than healthy controls. Therefore, the aim of the study was to perform a systematic review of the effects of gait speed on spatiotemporal parameters, joint kine...
Published in Journal of NeuroEngineering and Rehabilitation
BackgroundVirtual reality (VR) offers unprecedented opportunity as a scientific tool to study visuomotor interactions, training, and rehabilitation applications. However, it remains unclear if haptic-free hand-object interactions in a virtual environment (VE) may differ from those performed in the physical environment (PE). We therefore sought to e...
