Yo-Yo Effect

Also found in: Wikipedia.
A fanciful descriptor for an appearance caused by the disturbed peristalsis in an obstructed megaureter, where a bolus of contrast material cyclically regurgitates into the upper ureter after reaching the bottom of the dilated segment, with minimal amounts passing into the bladder
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.
References in periodicals archive ?
Laois or Westmeath will replace relegated Carlow, last year's inaugural McDonagh Cup winners, in next year's Leinster Championship with a yo-yo effect already apparent.
Passing backmarkers and so on made it a yo-yo effect between us.
Yo-yo dieting or yo-yo effect is a term coined by Kelly D.
Numerous popular self-help books on this topic promise weight loss without yo-yo effect as well as sustained changes in metabolism and resulting health benefits.
"If you look back over the history of the championship and the yo-yo effect of teams coming up and going straight back down - and we are a small club with limited resources - I know what it means to me and everyone at the club.
In fact, women of normal weight who subsequently experienced the yo-yo effect were 3.5 times more likely to die from sudden cardiac arrest than women whose weight remained stable.
''The yo-yo effect of the crude oil prices can be attributed to the uncertainty in the market,'' said Shailaja Nair, associate editorial director at energy information provider Platts, pointing to an ''unstable dollar'' and an ''irregular equity market''.
"We want to avoid the yo-yo effect that has happened to Lancashire in the last few years.
It was quite clear that its crude labelling and laughable yo-yo effect had rendered banding unfit for purpose."
AA president Edmund King said fatcat speculators were at the heart of the problem with bets on oil prices having a yo-yo effect at the forecourt.
"I would rather do it that way because it means a sustainable following, as opposed to a yo-yo effect on attendances from week to week or month to month."
Obesity Genes and Their Epigenetic Modifiers shows the way, by revealing the flaws in popular "weight loss" programs that can prompt a yo-yo effect, studying the world's longest-lived peoples, promoting "mindful eating" (being aware of and enjoying one's food choices, rather than zoning out or being distracted), offering guidelines for incorporating vigorous exercise into one's routine, and even laying out a sample day-by-day menu for four weeks.