Which of the following activities metabolizes the highest percentage of carbohydrate as a fuel source?Multiple ChoiceRunning the 200-meter hurdlesWalking for 1 hourLifting weights for 30 minutesHard cycling for 1 hour

What is the most important substrate for fuelling high intensity endurance exercise: a. vitamins  b. fibre c. protein d. carbohydrates

As physical fitness improves, the ability to use ______ as a fuel for energy increases.Multiple choice question.proteincarbohydratefat

Select all that applyThe graph shows the percentage of energy derived from four major fuel sources during submaximal exercise over time. As the length of the exercise period increases, the use of which two energy sources increases?Multiple select question.Plasma fatty acidsBlood glucoseMuscle glycogenMuscle triglycerides

Which one is true of muscle fuel use?Group of answer choicesThey can run only on lipidsThey can run only on carbohydratesThey can run on both carbohydrates and lipids

Fats and carbohydrates are ______ used to meet energy needs.Multiple choice question.primarilyrarelyneveralways