Exercise Physiology Review Flashcards

Flashcards for review of exercise physiology lecture notes, covering topics from energy metabolism to body composition.

At rest, almost all energy is created through what process?

Aerobic Metabolism

What does an RER of 0.90 indicate?

CHO as a primary source of fuel during intense exercise

Gluconeogenesis is the process by which…

Glucose is formed by a non-glucose source

During electron transport, what serves as electron transporters?

NADH

True or False: Glucose is the only substance that can be used as a source of fuel for aerobic metabolism, specifically the Krebs cycle.

False

What is a measure of cardiovascular fitness, and what is a better assessment of performing during aerobic exercise?

VO2max, lactate threshold

RER is a ratio of what?

Carbon dioxide output (VCO2) to oxygen consumed (VO2)

What is the first phase of glycolysis known as?

Energy investment

True or False: The point of accumulation of blood lactate on a graph can be moved to the right with training; this would signify the ability to work at a greater aerobic sustained intensity.

True

What is the rate-limiting enzyme for glycolysis?

Phosphofructokinase (PFK)

As lean body mass increases, what happens to resting metabolic rate?

Increases

What is the major muscle of inspiration?

Diaphragm

What is the site of gas exchange in the pulmonary system?

Alveoli

What is residual volume?

The volume of air remaining in the lungs after maximal expiration

What ratio of FEV1.0/FVC is considered 'normal'?

70%

True or False: VO2max is limited by the pulmonary system in healthy individuals.

False

How is 99% of all oxygen in our blood transported?

Hemoglobin

In regard to the oxyhemoglobin dissociation curve, what does increased temperature cause?

Rightward shift

Which of the following is a function of the cardiovascular system?

Transport of oxygen to tissues

What is true about skeletal and cardiac muscle?

Both tissues are strained

Which blood pressure is considered 'normal'?

120/80mmHg

The complete disappearance of Korotkoff sounds during blood pressure measurement corresponds to which blood pressure?

Diastolic blood pressure

Which of the following is a cardiovascular response during acute exercise?

Increased cardiac output

Which of the following is the product of heart rate and stroke volume (HRxSV)?

Cardiac output

A delay in electrical conduction occurs at which node to allow for ventricular filling?

AV node

A body mass index (BMI) of 26.8 kg/m2 is classified as what?

Overweight

What is the gold standard of body composition assessment?

DEXA

True or False: Fat is a good conductor of electricity because it primarily consists of water and dissolved salts and minerals.

False

True or False: During skinfold measurements, the thickness of the visceral fat is measured.

False

Individuals that carry their weight around which area are at increased risk for disease?

Waist-line/midsection

How many kcals are in 1 pound of fat?

9 kcals

True or False: Diet has been proven to be more effective than exercise in the reduction of weight and maintenance of lean body mass.

True

Genetic variance in fat mass and percent body fat accounts for approximately what percentage in the general population?

30-70%

Which of the following encapsulates the entire muscle?

Epimysium

What is the smallest unit of contraction within a muscle fiber?

Sarcomere