Top Weight Loss Trainers in Greenwich & South East London

I’M KAREN MARTINEZ, One of The Top Weight Loss Trainers in Greenwich & South East London. Diet is important in all stages of training, before, during and after, to provide adequate energy and ensure fluid levels are maintained. Nutrition plays a crucial role in achieving long-term fitness goals, but to maximize exercise performance we must understand how we metabolize during exercise. Carbohydrate and fat are the most important fuel sources for active muscles. Both are stored in the body and can be mobilized when energy demand increases. They are used by muscle tissues concurrently, but the predominant fuel source depends on exercise intensity and duration, and general aerobic fitness and diet. More intense exercise like sprinting favors carbohydrate usage, while longer less intense activities such as long-distance running will utilize fat stores as carbohydrate reserves are depleted within 60-90 minutes (“hitting a wall”). The more fit the athlete, the more likely he/she is to burn fat, but the proportion of each substrate used preferentially is also reflective of their quantities in the diet.