my project is testing do aerobic exercises increase the lung capacity. Im testing it with balloons.
my independent variable is the balloon, i just don't know what the levels aree .What are the levels of the independent variable?
There could be 2 possible levels: 1) How fast a subject can inflate a balloon to a certain diameter, and 2) The diameter that the subject can inflate a balloon to, in a single breath.
Be sure to include one group doing "interval training", which is the best way developed so far, to increase pretty well all parameters of aerobic training. Here's how to to it:
http://ca.answers.yahoo.com/question/ind鈥?/a>
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