Carbs: Helps
fuel high intensity activity.
Not exact matches
«That means that the body's quick - burning
fuel can not be accessed during
high -
intensity bursts of
activity and athletic performance is dropping off as a result.»
According to Ryan Andrews of Precision Nutrition, «most
high -
intensity physical
activity is a state of «crisis» in the body: it endangers oxygen supply to tissues, increases body temperature, reduces body fluids and
fuel stores, and causes tissue damage.»
Our bodies generally draw upon a combination of carbohydrates and fats to produce ATP, with the exception being very short - duration,
high -
intensity anaerobic
activities, such as a 100 - meter sprint where the primary
fuel sources are creatine phosphate, stored ATP, and muscle glycogen (i.e., carbohydrates stored in the muscle).
Carbs provide about four calories of energy per gram (except for fiber, which is calorie - free), and are the body's preferred
fuel source for
high -
intensity activities (like sports, running and weight training).
Nutrients get converted to ATP based on the
intensity and duration of
activity, with carbohydrate as the main nutrient
fueling exercise of a moderate to
high intensity, and fat providing energy during exercise that occurs at a lower
intensity.
High -
intensity activities like sprinting draw upon the glycogen tucked away in our muscles for
fuel, which is why you hear about marathoners «carb - loading» in the days before a big race.
In contrast to dietary fat, body fat stores are of tremendous importance during physical
activity, as long as the
intensity is not too
high and there is adequate O2 delivery to use fat as a
fuel source.
A good place to start as someone who's doing resistance training and possibly some
high -
intensity cardio, which is a very carb dominant
fuel sourced
activity, would be maybe between 40 % — 70 % of carbohydrate.
You can eat a wide variety of low - glycemic carbohydrates that have relatively little impact on your blood sugar (in modest proportions) in order to
fuel yourself in a way that allows for
high -
intensity bouts of
activity when necessary.
During a bout of continuous
high -
intensity physical
activity, we
fuel the first fifteen to thirty seconds with energy from creatine phosphate.