To reiterate, the independent variable is the thing over which the researcher has control and is manipulating. In this experiment, the researcher is controlling the food intake of the participant. The dependent variable is believed to be dependent on the independent variable.
This grueling triathlon distance consists of a 2.4-mile swim, a 112-mile ride and a 26.2-mile run. Ironman pros post bike splits as fast as four hours and 15 seconds -- a more than 26 mph average pace, which gets all the press. You may wonder how more average mortals perform on the bike portion of the course so you can gauge your training and potential race-day performance.
In addition to the standard race distances, a race director could design a race that falls within a category: short, intermediate, long or ultra. A short-distance triathlon is anything that involves a swim of 0.2 to 0.6 miles, a bike portion of 5 to 18.6 miles and a run of 1 to 3.9 miles. Intermediate-distance triathlons consist of a 0.7- to 1.2-mile swim, an 18.7- to 31-mile bike ride and a 4- to 8-mile run. Long-distance triathlons have an athlete cover between 1.3 and 1.9 miles in the water, 31.1 to 62 miles on the bike and 8 to 18.6 miles running.