What is the difference between absolute and relative contraindication?

Classifying absolute as acute and relative as chronic is incorrect; the distinction is based on severity and allowance for participation, not on the acute or chronic nature of the condition.

Risk-benefit analysis applies to relative contraindications, not absolute ones; absolute contraindications do not permit a risk-benefit analysis because the risk is categorically too high.

Restricting participation in only 'some' testing describes the relative contraindication category, not absolute contraindications, which prohibit all exercise testing and prescription.

Absolute contraindications represent conditions so severe - such as unstable angina or uncontrolled arrhythmias - that no exercise testing or prescription is permitted until the condition is resolved or stabilized. This is distinct from relative contraindications, where the clinician weighs the risks and benefits to decide if carefully modified exercise is acceptable. The key distinction is that absolute means no participation under any circumstances.