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Abstract

Water aerobic training perfermed in different forms such as rumng, Uumping and walking, has its own unique effects. Running in shallow water,
is accomplish in three different forms: running in shallow water, running with special floating devices in deep water, and running without any floating devices in deep water jumping, and walking, has its own unique effects.
In this study, aerobic power, body composition, weight, and 540 m run time
are determined as pretest and post test in 22 untrained high school girls (mean age 15.42 :t .82), divided in two experimental and control groups(n=l1).
Experimental group began their training program in water as high as 70 percent of their heights, and continued this for 3 days a week for 18 bouts. Running times in water'bas began from 20 min, increased 1 min per session, so
that finally subjects .ran about 37 min. Mean temperature of water during entire training was 27 :t 2°c. The following results has obtained finally:
1. 4.7 percent significant increase in absolute Vozmax. 2. 1.7 percent significant decrease in weight. 3. 6.5 percent significant decrease in percent body fat. 4. 12.8 percent significant decrease in 540m run time
In summary, with respect to the results of different studies in this field, the objectives of aerobic water training, determine. Training form and quality: if
the objectives of training are maintaining cardiovascular fitness of injured athletes or special population, then it would better that training be performed
in deep part of the pool, with or without tloating devices. If the objectives of training are Vozmax improvements, then it would better that training be
performed in the shallow part of the pool, main taining running pattern in track.

Keywords