3. The method recited in claim 1 , further comprising: receiving input specifying at least one athletic activity.
1. A method comprising: measuring a physiological characteristic of a user; processing, by a processor, an electronic training script defining a sequence of athletic activities to be performed by the user; and prompting the user to perform a next athletic activity in the sequence of athletic activities based on a measurement of the physiological characteristic indicating completion of a previous athletic activity in the sequence of athletic activities.