User Manual

Joule 2.0 User Guide page 45
Chapter 13: Definition of Terms
Heart Rate
1. The number of time the heart beats each minute or beats per minute or BPM. 2. Although the
heart rate response is reflective of the cardiovascular strain it is by no means always indicative of
the metabolic strain or external power output.
Maximal Heart Rate
1. The highest achievable heart rate during an all out 2 minute to 8-minute effort. 2. The highest
heart rate recorded during competition or training. 3. The heart rate associated with the power
output at VO2 max. 4. Commonly estimated as 220 – Age. 5. Better estimated as 208 – (0.7 x Age).
Velocity
1. The distance traveled in a given time frame normally expressed in meters per second, kilome-
ters per hour, or miles per hour. 2. Speed. 3. Power divided by the total resistance impeding move-
ment. 4. A function of a cyclist’s power output and all of the forces resisting that cyclist’s forward
motion.
Rate of Ascent
1. The vertical speed traveled or climbed in feet per hour or meters per hour. 2. The VAM or vertical
ascent in meters per hour. 3. A reflection of a cyclist’s power output on climbs steeper than 7%
in grade. At an 8% grade, a rate of ascent of 1800 meters per hour requires a power output of 6.3
watts per kg and is considered the upper limit for climbing speed in professional cyclists.