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.
By the time that the triathlon arrived, I was capable of swimming 0.5 miles in a pool without stopping (about 30 minutes), I could jog 3 miles (about 35 minutes) and I could bike 6 miles (I had not tried longer distances than that).