The major considerations for exercise physiology are energy system overload and how the mechanics of the activity stimulate the
muscular and neural systems when performing the activity.
These may be considered separately as:
The human body has 3 main pathways for producing energy for the purpose of movement (exercise) these are;
The anaerobic phosphate pathway which is used for ultra-high intensity activity in very short bursts
The anaerobic lactate pathway, also used for high intensity exercise that is sustained for longer periods of time. This system
produces most of the
lactic acid during exercise.
The aerobic pathway, used for more sustained periods of exercise. This pathway utilises oxygen and is capable of burning fats.
The XT has many of the exercise characteristics of the most effective forms of aerobic exercise; it is a sustained activity incorporating a large amount of
muscle mass and it is weight bearing. One of the major advantages of the XT over some of traditional aerobic exercise choices (running, cycling, walking &
swimming) is that the movements are both weight-bearing AND non-impact. Each of the other modes mentioned are either one or the
The XT like most other forms of sustained activity uses a mix of the aerobic and anaerobic lactate energy systems. The degree to which each system is
utilised is of course dependent on the intensity of the participantís effort. Heart rates elicited during trials of the XT show that participants produce
heart rates in the aerobic base, pre and post threshold zones producing the following benefits:
Aerobic base adaptations including: Cardio-respiratory improvements, blood flow and blood pressure improvements, improved use of fuels for exercise