UNLABELLED Maximal cycling power has been reported to decrease more rapidly when performed with increased pedaling rates. Increasing pedaling rate imposes two constraints on the neuromuscular system: 1) decreased time for muscle excitation and relaxation and 2) increased muscle shortening velocity. Using two crank lengths allows the effects of time and shortening velocity to be evaluated separa...

OBJECTIVES The limiting factors with regard to power output available for wheelchair ambulation have not been identified. The aim of the present study was to correlate power output during wheelchair driving with (i) power output and oxygen uptake during arm crank ergometry and (ii) arm muscle strength. METHODS Eleven disabled men were examined for maximal power output (POmax) during wheelchai...

People with amputation move asymmetrically with regard to kinematics (joint angles) and kinetics (joint forces and moments). Clinicians have traditionally sought to minimize kinematic asymmetries, assuming kinetic asymmetries would also be minimized. A cycling model evaluated locomotor asymmetries. Eight individuals with unilateral transtibial amputation pedaled with 172 mm-length crank arms on...

In this article present a new method for investigating the functionality of crank-slider mechanism given coefficient change in average speed slider and optimal transmission angle to ensure most outstanding transfer force from input link working element (output link). When implementing technological process оn crank presses, it is necessary provide predetermined cycle motion: fast lifting, dwell...

Abstract Conventional implementation of slider-crank mechanisms result in high loads transmitted through the mechanical structure, inhibiting design compact and oil-free machines. Therefore, this research proposes to step away from conventional, i.e. rotative, actuation investigate local linear on slider-component directly, while maintaining kinematic link configuration. In work actuating princ...

New identities and congruences involving the ranks and cranks of partitions are proved. The proof depends on a new partial differential equation connecting their generating functions.

desmoid tumor of breast is a rare benign, locally aggressive tumor with a high recurrence rate. it has been associated with scar from previous breast surgery or trauma. especially in breast cancer patients with previous operation history, it may simulate recurrent breast cancer clinically and radiologically. we presented multimodality imaging findings (ultrasound, computed tomography, magnetic ...

inger equation (TDSE). It uses the Crank–Nicholson scheme to propthen solving the resulting eigenproblem by expanding on agate the wavefunction forward in time and finite differences to some basis set. Examples of such techniques are the colloapproximate the derivative operators. The resulting sparse linear cation and Galerkin methods implemented via piecewise system is solved by the symmetric ...