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However, in a championship race, where the goal of the racer is to win, the pace is typically slow in the beginning of the race and gradually speeds up for a sprint finish, often meaning the race is run with a negative split. [6] Typically, to run a world record, the runner must employ a near-optimal pacing strategy. [7] Threshold Pacing
Rabbits Abel Kirui, Elijah Keitany [] and Wilson Kigen [] pacing Haile Gebrselassie and Charles Kamathi at the Berlin Marathon 2008. A pacemaker or pacesetter, sometimes informally called a rabbit, [1] is a runner who leads a middle-or long-distance running event for the first section to ensure a high speed and to avoid excessive tactical racing.
In an incremental exercise test, it is the first speed at which any increase in exercise intensity fails to elicit an increase in oxygen consumption. The vV̇O 2 max of world class middle- and long-distance runners may exceed 24 km/h or 2:30/km pace ( 15 mph or about 4:00/mile), making this speed slightly comparable to 3000 m race pace.
The world record in the mile run is the fastest time set by a runner in the middle-distance track and field event. World Athletics is the official body which oversees the records. Hicham El Guerrouj is the current men's record holder with his time of 3:43.13, [1] while Faith Kipyegon has the women's record of 4:07.64. [2]
For a performance to be ratified as a world record by World Athletics, the marathon course on which the performance occurred must be 42.195 km (26.219 mi) long, [34] measured in a defined manner using the calibrated bicycle method [35] (the distance in kilometers being the official distance; the distance in miles is an approximation) and meet other criteria that rule out artificially fast ...
This is not exactly a Cooper test but a reasonable practical compromise as long as the distance is of sufficient length to put a continuous load on the cardiovascular system for 10 or more minutes. For example, the British Army uses 1.5 miles, the Australian Army uses 2.4 kilometers, the US Army uses 2 miles and the US Marine Corps 3 miles.
The runner should be able to sustain this pace for up to 60 minutes during racing. Daniels describes this intensity as "comfortably hard". In elite runners, the pace matches the half marathon one, while less trained runners will run at around 10k pace. Daniels points out the importance of keeping the given pace to reap the benefits of the training.
A typical 5k runner might consider 8 to 10 miles (13 to 16 km) of LSD, while a marathoner might run 20 miles (32 km) or more. LSD runs are typically done at an easy pace, 1–3 minutes per mile slower than a runner's 10k pace. The objectives of these runs are to build blood volume and to increase muscle strength, endurance, and aerobic fitness.