Challenge Your Exam Readiness With Our Free ISSA CPT Practice Questions

Age-predicted maximum heart rate is the primary variable used to determine aerobic training intensity. The common formula is 220 – age, though variations exist for improved accuracy. Training zones are then calculated as percentages of this maximum. Resting heart rate provides useful context for fitness level, but intensity prescriptions typically rely on maximum heart rate. Height, weight, and body fat percentage may influence performance but do not directly determine aerobic training zones. ISSA CPT highlights the importance of monitoring training intensity through heart rate, perceived exertion, or talk tests to ensure safety and effectiveness. For beginners, training at 50–70% of maximum heart rate is appropriate, while advanced clients may train at 70–90% depending on goals. By individualizing intensity, trainers optimize cardiovascular adaptations and reduce the risk of overtraining or injury.