Pocket Workout for Windows Mobile

From Electric Dreams:

Pocket Workout is a complete workout management solution for your Pocket PC. Save your workout information as you do exercises at the gym, or create routines and plan your workouts in advance. Use many included exercises or create your own.

Pocket Workout was designed with simplicity and speed in mind. Previous values are visible when you complete an exercise, so repeated values can be entered with just one tap. Graph your progress with full-color charts to help you analyze your performance. Keep track of your overall health, including sleep, heart rate, blood pressure, and body weight.