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contests of speed and endurance with serious biochemical and physiological consequences lessened by adequate training beforehand. See also physical fitness, exertional rhabdomyolysis, heat exhaustion, pulmonary hemorrhage, epistaxis, exhaustion.

racing dogs
usually refers to Greyhounds and Whippets, but in some instances may be used to describe the dogs used for endurance sledge racing.
racing pigeons
a variety of pigeons, bred and selected to fly long distances back to their own homes. Races are conducted as time trials with groups of birds being released at specific times and their arrival clocked in.
racing plates
lightweight, single-use, horseshoes made of aluminum and with a fullered contact surface; see also horseshoeing.

Patient discussion about racing

Q. what causes the heart to race so fst it feels like it going to come right out your chest?

A. Too much caffeine or alcohol or food can sometimes cause your heart to race in an erratic way. Heart rhythm problems (arrhythmias) occur when the electrical impulses in your heart that coordinate your heartbeats don't function properly, causing your heart to beat too fast, too slow or irregularly.

Arrhythmias are common and usually harmless. Most people have occasional, irregular heartbeats that may feel like a skipped, fluttering or racing heart. However, some heart arrhythmias may cause bothersome — sometimes even life-threatening — signs and symptoms. Hope this helps.

More discussions about racing
References in periodicals archive ?
Prolific two-mile hurdlers Hardy Eustace, Harchibald and Brave Inca, first three home in Cheltenham's championship race five years ago, go head-to-head at the Failte Ireland Dublin Horse Show today for the first time since their racing plates were hung up.
THE racing plates worn by Desert Orchid when he won the 1989 Cheltenham Gold Cup are to be sold at auction this week at Sotheby's.
Henry Candy, trainer of Amour Propre "He wears special bonded plates at home now, which seem to have helped, but he'll be wearing normal racing plates in the race.
CONNECTIONS of Silver Birch yesterday hailed the 2007 Grand National winner as the best thing that ever happened to them as the Gordon Elliott-trained Aintree hero hung up his racing plates at the age of 13.
A PIECE of racing memorabilia of the highest order will be up for grabs next Friday, when a set of Sea The Stars's racing plates is auctioned for the benefit of the Malton Fire Disaster Appeal and Racing Welfare.