IB Syllabus focus: 'Exercise prescription for health and performance requires careful planning. Intensity should progress appropriately to reduce injury risk and support physical and mental health.'
Exercise prescription turns training ideas into a structured plan. The key issue is matching the dose of exercise to the goal while progressing intensity safely enough to improve outcomes without causing harm.
Purpose of exercise prescription
A good exercise plan is more than telling someone to “work harder.” Exercise prescription organizes activity so that the person can improve health, fitness, or performance in a controlled and measurable way. Careful planning matters because the same exercise can be either helpful or harmful depending on how hard, how often, and how long it is performed.
Exercise prescription: A planned exercise program that specifies the type, frequency, duration, and intensity of activity to help a person reach a health or performance goal safely.
Practice Questions
FAQ
The talk test is a simple way to judge aerobic intensity without equipment. If a person can speak comfortably in full sentences, the exercise is usually at a lower or moderate intensity.
If speaking becomes difficult and only short phrases are possible, intensity is likely high. This is useful in school, fitness, and health settings because it is practical, immediate, and easy to understand.
Rating of perceived exertion reflects how hard exercise feels to the person, not just what the body is doing physiologically. It can capture factors like stress, poor sleep, heat, and muscle soreness.
This makes it valuable when heart rate is affected by caffeine, dehydration, medication, or device error. Using both measures together often gives a better picture than relying on one alone.
Not usually. Aerobic intensity is often prescribed using pace, heart rate, or perceived exertion because the effort is continuous over time.
Resistance exercise intensity is usually based on load, number of repetitions, movement quality, and rest intervals. A prescription should match the type of training, because “hard” means something different in a run than in a strength session.
Yes, wearables can help track heart rate, distance, speed, sleep, and training consistency. This can make exercise prescription more individualized and easier to adjust.
However, wearables are not perfect. Poor sensor contact, delayed readings, and overreliance on numbers can lead to inappropriate decisions. Device data should support, not replace, coaching judgment and personal feedback.
The first change is not always intensity. Sometimes reducing session duration, lowering frequency, or increasing recovery time is enough to make the program manageable.
This is often better than stopping completely. A sustainable plan should preserve confidence and consistency, so small adjustments are usually more effective than major disruptions.
