How often should a beginner client run to improve cardio-respiratory fitness based on a suitable prescription?

For beginners looking to improve their cardio-respiratory fitness, a prescription of three times per week is recommended as it strikes a balance between allowing the body to adapt to new physical demands and providing sufficient frequency to enhance fitness. This frequency helps foster consistency without overwhelming the individual's current fitness level, which is vital for adherence and progression in a new exercise routine.

Exercising three times a week offers enough opportunities for improvement while minimizing the risk of injury and fatigue, aligning with guidelines that suggest beginners should gradually integrate cardio into their regimen. Furthermore, running three times a week allows for adequate rest and recovery, essential for adaptation and avoiding burnout, especially for someone who may be new to exercise. In contrast, options like two times per week may not provide enough stimulus for noticeable improvements in fitness, while four and five times per week could be excessive for beginners, leading to potential overtraining or discouragement.