Are you burning fat or improving fitness?
Facilitation of fat metabolism is important in both health-related and performance-oriented exercise.
From weight management point of view physical exercise is the most essential part to reduce your overall body fat. Although a professional athlete aims to optimise their endurance performance by improving their ability to mobilise and oxidise fat to spare reserves of carbohydrate.
Both EnergyPointer zones have their specific benefits, so you can vary your training with ease. Low intensity training has several health benefits e.g. it increases fat oxidation. However, training at a higher intensity will improve cardiovascular fitness i.e. it improves the ability of your heart to pump blood and therefore increases your blood circulation to your muscles and lungs to improve endurance.