Chapter 5 discusses maximal intensity exercise, which is often associated with
maximal or peak oxygen uptake (
V
O
2
·
). However, this convention ignores the fact that, for short periods of time,
anaerobic provision of adenosine triphosphate (ATP) can support exercise of much
greater intensity than that at peak
V
O
2
·
Th erefore, for the purpose of this chapter, maximal intensity exercise is
defi ned as that which is performed ‘all-out’ and is sustained by an anaerobic ATP
yield which exceeds that of oxidative metabolism.