VO2 Max Test
The workout format the exercise physiologists commonly use to determine VO2max is also useful as a powerful (if painful) fitness-boosting workout. Start by hopping on the treadmill and running easy for five to 10 minutes. Next, increase the belt speed by 0.5 mph and run for one minute at that speed. Now increase the belt speed by another 0.5 mph, hold the new speed for another minute, and continue in this fashion until you feel unable to run any faster. Reduce the belt speed and cool down. Note the maximum speed you attained and try to beat it when you repeat the workout in three or four weeks.