Mass Perturbation of a Body Segment: I. Effects on Segment Dynamics

Mass perturbation of a body segment: 2. Effects on interlimb coordination.

The shifts in relative phase that are observed when rhythmically coordinated limbs are submitted to asymmetric mass perturbations have typically been attributed to the induced eigenfrequency difference (delta omega) between limbs. Modeling the moving limbs as forced linear oscillators, however, reveals that asymmetric mass perturbations may induce a difference not only in eigenfrequency (i.e., ...

Body Segment Parameters

Segment aberration effects on contrast.

High-contrast imaging, particularly the direct detection of extrasolar planets, is a major science driver for the next generation of telescopes. This science requires the suppression of scattered starlight at extremely high levels and that telescopes be correctly designed today to meet these stringent requirements in the future. The challenge increases in systems with complicated aperture geome...

Effects of ischemia on epicardial segment shortening.

To evaluate the effects of nontransmural ischemia on epicardial contractile function, we implanted sonomicrometers in 15 open-chest, anesthetized (halothane) dogs. One cylindrical crystal (radiating ultrasound 360 degrees) was used as a transmitter for three conventional flat plate crystals arrayed to measure epicardial segment shortening along three different axes that were deviated 0 degree (...

Impact of Body Mass Index on Presentation and Outcome of Acute ST Segment Elevation Myocardial Infarction

At the beginning of the 21st Century, obesity has become the leading metabolic disease in the world, So that the World Health Organization (WHO) refers to obesity as the global epidemic [1]. Obesity has important clinical and epidemiological implications as it is associated with many metabolic and cardiovascular diseases, a relation has been established between obesity and insulin resistance, t...