Biochem Sports Nutrition

What energy source is predominant for activities lasting <15 secs?

What energy source is predominant for activities lasting <2 min?

What energy source is predominant for activities lasting <5 min?

As exercise intensity increases, what happens to the proportion of energy supplied by carbohydrate?

Which of these fuels can be used by muscle?

which of these will not effect the type of fuel used by muscle?

what type of power output will anaerobic glycolysis have?

how long can anaerobic glycolysis support muscle contraction?

what type of muscle fibres are mainly used with anaerobic glycolysis?

What type of power output does aerobic metabolism have?

how long can aerobic metabolism support muscle contraction?

What type of concentration is lactate accumulated in aerobic physical work?

What is the limit of accumulation of lactic acid in the muscle cell?

What are the classifications of doping agents?

Doping agents can be classified according to their specific effects

Extremely high hematocrit value could induce serious, deleterious consequences, including:

EPO can be tested by determining hematocrit, what is the maximum acceptable?

What are the doping substances most widely used for improving muscle mass and strength?

Aromatase inhibitors...

What steroids are used for treatment of asthma and slightly improve the aerobic performance in the lungs of healthy individuals?

What is the most anabolic hormone in the human body?

How do some substances decrease feelings of fatigue and nervousness?

Which of these decrease feelings of fatigue and nervousness?

In aerobic physical activity the metabolic fuels (carbs and lipids) a pretty completely oxidized in the citric acid cycle and electron transport system

A large percentage of the energy for aerobic physical activity comes from...

High concentration of blood lactate May completely replace glucose as a substrate for oxidation during very active exercise in human brain

Which of these are sources of muscle glucose for glycolytic metabolism?

Glucogenic protein as a fuel source may be used to form

Ketogenic protein as a fuel source may be used to form

Epinephrine stimulates...

Muscle glycogen gives [blank_start]immediate[blank_end] energy, metabolism is done directly by [blank_start]cell[blank_end], its the [blank_start]primary energy[blank_end] for an athlete. Liver glycogen gives [blank_start]short term [blank_end]energy storage for [blank_start]muscle and brain[blank_end], metabolism is done by [blank_start]glucose phosphatase[blank_end] and stores are [blank_start]half used[blank_end] after 1 hour of intense exercise.

Simple carbs have [blank_start]rapid[blank_end] absorption, rapid [blank_start]increase[blank_end] in blood glucose, [blank_start]strong[blank_end] increase in insulin and glucose is stored as glycogen and [blank_start]fat[blank_end] because [blank_start]TCA cycle[blank_end] is saturated with [blank_start]acetyl Co A[blank_end]. Complex carbs have a [blank_start]slow[blank_end] absorption and slow increase in blood glucose, they have a [blank_start]lesser[blank_end] insulin response and maximize [blank_start]glucose[blank_end] stored as [blank_start]glycogen[blank_end]. [blank_start]Complex carbs[blank_end] are preferred for athletes.