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 The Interval Training is designed to give precise amount of stimulus to the muscular, anerobicanaerobic [sic], aerobic, circulatory and respiratory systems.

THE WORK IN INTERVAL TRAINING:


 * 1) A specified distance to be run is prescribed.
 * 2) A predetermined pace (i.e. the speed of the work) at which the athlete covers the set distance. This never to be maximal intensity-only near to maximal intensity say 170 beats per minute during work interval.
 * 3) The recovery period during which the athlete work at a reduced rate of speed-i.e. Jog slowly/walk. This should be no longer than 2 minutes.
 * 4) The length of exercise session to be 30 minutes only. The athlete works to the predetermined number of repetitions. The repetitions may be 10, if the work is short and recovery is long.

Interval Training is designed by its intensity not to exercise muscles much faster than you can supply them with oxygen. You never perform at maximum; i.e. you never go all out but you stay in that phase where you supply oxygen nearly as rapidly as you need it.

The circulo-respiratory endurance is dependant on the effectiveness of heart, blood vessels and lungs