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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 ?
The Indy Racing League season opens March 24 at Homestead-Miami Speedway.
California Speedway has always been a really great race track for the South Point Racing team," Gaughan said.
As many of you know, there are very good times to be had in distance-sport racing, if one goes about it the right way.
Herta won't race in the 24 Hours of Le Mans with Andretti Green Racing this year, but he may enter the race with another team.
20 Chevrolet Monte Carlo for the Bill McAnally Racing/Richard Childress Racing Development Program in the NASCAR Grand National Division, West Series, and capturing four top-ten finishes.
Empire Racing was formed by a group of dedicated and innovative New Yorkers determined to create a bright future for racing in their home state," said Magna Entertainment Chairman Frank Stronach.
We first met Luis when he substituted for Adrian in the 2002 Mexico City race and later did some test driving for Fernandez Racing.
Championship Off-Road Racing (CORR) combines close, fender-to-fender racing on challenging closed course dirt tracks in the Midwest and Southern California.
The new television channel, Racing World, launched March 8, offering live racing from Golden Gate Fields, Gulfstream Park, Laurel Park, Oaklawn Park, Santa Anita Park and Turfway Park.
Busch Series points leader Kevin Harvick finished second, followed by Mark Martin, who battled with his Roush Racing teammates Greg Biffle and Matt Kenseth for the lead for most of the race.
said, "Martini Racing, an Australian based racing performance company has purchased its first order, one pallet (1,680 bottles) of GS610(TM) brake fluid.